March 2, 2007
FX Nytro Fuel Capacity
I have read and received several inquiries and comments regarding the fuel capacity of the new sled. I remember back in 1991 when we were in the development stages of Vmax4. There were some heated discussions over the size of the fuel tank (which was 36 liter if I recall). The final conclusion was simple ‘we don’t care how much it holds it just better go a 100 miles, minimum‘ (ends up, that wasn’t always the case with the big Vmax but close)… Well I asked around and we are getting better than that out of the FX Nytro. I won’t throw any data on the table because operating conditions can have a profound effect on fuel consumption. In a nut shell, I don’t care how much it holds I care how far it will go on a full tank. I would suggest if it goes the same distance as a competitive style 2-stroker that has a larger tank, it’s not only OK, its a big bonus!
While I understand the thinking behind the fuel tank size, I know as a high miler that I would rather have the larger standard sized fuel tank and be able to surpass the mileage of older two strokes. Don’t forget that BRP’s SDI’s are in line with Yamaha’s 4 stroke fuel mileage, and their Power TEK engine’s are close as well. So with their 40 litre tanks, we can not go the same distance. I have owned both (SDI/PTEK) and still own one. The argument behind the fuel tank size is an interesting one because there is no storage for spare fuel on non-utility Yamaha 4 strokes, so while my smaller fuel capacity may keep up with another older two stroke, I’m left behind after they fill up with their jerry can, which I have no spot for. Storage is extremely important and we need more of it, as well as the availability of a hitch. Different units are used for so many applications, it is nice to have storage and hitch options available.
…I certainly understand your points. Its been a while since I rode up there but I don’t imagine there have been a lot of new towns and watering holes popping up on the tundra. You have no choice but to carry extra fuel. In the south where the majority of the sleds are sold, the infrastructure is such that most trails have fuel available within 100 mile intervals. With a little thought and planning it isn’t too often a sledder can’t find gas. In the case of the Arctic and other remote regions, it is a completely different game. You are correct, we should not forget about the need for storage and hitch points to cover a wider range of Canadian applications. I will remind our planning team and accessory development guys at every given opportunity, thanks for your input. cr
March 3rd, 2007 at 10:31 ami love the new nytro mtx and will be spring ordering one,but just wondering why there is no option for fox floats?but the shorty has that option?..thnx
…It basically boils down to logistics, positioning and cost. As discussed in an earlier post. Yamaha won’t just bolt a set of shocks onto a model without going through a whole set of testing and calibration procedures plus the FOX shocks come at a premium price.To offer them we generally build them into a niche or special model. This year our plate was full. If research indicates the demand for Floats is high, they can certainly be considered for future variations. cr
March 3rd, 2007 at 7:22 pmLove the blog idea.
Does the FX Nytro have an O2 sensor and/or a knock sensor?
…Nope, the Nytro has neither an O2 or knock sensor. cr
March 3rd, 2007 at 9:25 pmThanks for the reponse Chris!
I have to say, I’ve seen sled manufacturers try and join in the communications with their consumers and it failed for BRP in the past. Your response was excellent, you didn’t avoid the comments or questions and you left me feeling like you understand my riding conditions and also reminded me that the majority of sales are tailored to southern markets with fuel pumps always in range.
It was nice to add that you’d frequent the idea of accessory and storage applications.
I am liking this blog very much. This is very good communication and understanding.
March 6th, 2007 at 12:24 pmOk so what is Yamaha doing for an auxiliary fuel tank
when I go riding with a phazer I dont want to have to stop for fuel before him
…Well Don, one thing’s for sure, you’ll be arriving at the gas pumps first, the Phazer might not even know you stopped!
March 6th, 2007 at 7:55 pmI’ll kick this around in another post… cheers cr
Was wondering why Yamaha never put a 136″ track on one of the Nytro’s to make an all round sled that can take the bumps be alright on trails and able to break trail if need be?
I responded to this already, if you check out the comments at the bottom of the ‘introduction’ post the fellows name was Chris, he also asked about a 136′er cheers … cr
March 8th, 2007 at 2:12 pmi woulod just like to give my 2cents on the fuel tank debate.
Many forums have raised this issue.
The reason that the decision to have a 7.4Gal tank will never be known to us.
I don’t think having a smaller tank in which you *Might* get similar mileage to a *Standard* 11 Gal. tank as a Bonus.
The fact that it will get good mileage should be exploited!
You should be telling your customer they can go 160 miles on a tank of gas. But you are saying “You get 100 miles to a tank, you will have to stop and refuel just as much a the 2-strokes!!”
You put less gas in…so what. You still stop as often.
What I would like is to have the *OPTION* to purchase a larger accessory tank. Make available a replacement 10-11 gal tank. Then you will get people excited about the better range of your Nytro.
….But I am still buying one anyway….
We are being conservative on the fuel range claims for the Nytro. I think its better in this case, to under-promise and over-deliver. Don’t forget none of the 08 sleds running around are production models and I have learned things always get tweaked by the time we deliver to you. I do not believe any claimed weights or similar data like fuel consumption to be anything more than an indication of where the sled could end up in production. That comment goes for all manufacturers btw.
March 22nd, 2007 at 2:02 amI would really like to see some kind of option to increase fuel capacity and I promise this subject will be on the table when I travel to Japan at the end of this month to meet with our planning and engineering people along with the distributors from USA, Europe, Russia and Japan. At the very least I will post here who, how and why the 28 liter tank was decided upon and what if anything will be done to address your concerns. cr
Hi Chris,
Just have to say, your comments and this entire blog in general is very, very good. I appreceate your detailed explanations and thoughts. Congrats and keep up the good work! Bring that Nytro to Crane Lake! (lol)
March 22nd, 2007 at 3:07 pmI also have concerns about the fuel capacity. I currently race an ’05 Vector and the 10 gal tank gives me an advantage over the two strokes as I have been able to go as far as 138 miles at race speed and not refuel! The stock tank on the Nytro is going to require me to pit just as often as some of the two strokes. I’ve been getting 13 mpg at race speed and one of the guys I race against with an SDI Rev gets 10 mpg. I figure the Nytro, with its added HP will probably get the same MPG as my Vector and that is only 96 miles out of a tank. Tank size is my major concern holding me back from a purchase.
Scott, you are not the only one worried about fuel range. I have read many comments on-line both pro and con. I am having a difficult time to respond without knowing how much range we can really expect from a tank. Remember we haven’t built a production run yet and I have learned the hard way, not to make too many firm statements based on pre-production specifications. I don’t know if you can alter the fuel tank in the racing division where you compete. I’m thinking an ‘enduro’ tank, ‘tour buddy’ or something similar. I’ll do some more digging, but for now all I can say is: ‘it is what it is’ so be heads-up with respect to your application and expectations. Thanks cr
March 26th, 2007 at 11:49 amI just wanted to drop you a message and let you know that my 1992 Vmax-4 has over 20,000 miles on it and still going strong!
I know it’s to late but an optional larger fuel tank would have been really nice considering that once you hits 80 miles you better start praying for a fuel station.
Check out the website, there are still quite a few of us Vmax4 riders out there.
Thanks!!
Gotta love it… I have actually been on the Vmax4 site before, I have a lot of fond memories of my time spent on them. I had a Tour Buddy auxiliary tank on my piped 800, (mounted to the belt guard) you might want to check with Chris@TourBuddy (see my post ‘Gettin Tanked with a Buddy’ for contact info). I was wondering what I could post about this week and you have inspired me to revisit the Vmax4 development, Ill try to get it up tomorrow… cheers cr
September 12th, 2007 at 4:06 pmhey this blog is a cool idea i just wanted to say that i have spring ordered a Nytro MTX and am super excited to get the first km’s on it regardless of what the fuel capacity is. LET’S RIDE!!!
I hear you on that Greg! I’m sure fuel won’t be a big issue in the end, there are now lots of options… thanks cr
September 17th, 2007 at 11:36 pmChris,
I will be taking delivery of my new 40th Anniversary Nytro MTX here soon.
Nothing against Yamaha’s stock skis, but I installed aftermarket (Simmons Flexi-ski and Gen IIs) on my ’05 Warrior and my ’07 Attak and really liked the added performance versatility of the aftermarket products.
I have to go over 17 miles of groomed trails (Leavenworth, WA) to get to the deep snow and I am a bit worried that the specialized deep snow Nytro MTX skis won’t handle well on the trail.
The recent SnowGoer review of the RTX has me a bit worried about the new sled’s stability in corners and I don’t want to have a less-than-positive experience out of the gate.
Have you had any feedback regarding aftermarket skis for this new model? I was considering Slydogs or another set of Simmons. Any others?
Keep up the good work, I am now a true die-hard Yamaha convert.
Hey Joe, the topic of skis and their impact on handling is a real good one and I could devote an entire post to the subject. To answer your question, I have not had a chance to ride any of the Nytro’s with alternate skis (yet). We did have a set of ‘Dualies’ on a shorty out in Quebec last spring and I felt some improvements (in those conditions). I had Simmons skis on my RX-1 a while back and found pros and cons, again depending on the conditions. As more and more Revs hit the trails I became less impressed with them as they tracked in the grooves left by the old doo’s (same profile). I take everyones ‘perfect ski’ recommendations with a grain of salt. There are so many conditions and riding styles that no one set-up is ideal everywhere, that said there are definitely skis and carbides combinations that will dial in our sleds better for each individual application. We are working on new ski profiles for the future (have been for some time). Many of the obvious ideas are already patented, take Simmons as an example. If I were you I’d stay with the MTX ski if you are planning to ride any powder at all and try some aftermarket carbides to tune into the trail conditions before dropping the $$ on new skis. Example, Dualies are good for a less ‘busy’ front end.
October 1st, 2007 at 7:52 pmI would also recommend you ride the MTX stock to begin with. If you swap out parts right off the bat you’ll never know if you improved anything or went the wrong way. Again take the magazines comments for what they are, just regular guys with an opinion and a big audience.
Early season rides can beat the heck out of the carbides with little or no base. I’d ‘bake’ them first, then look to some better replacements. If that doesn’t do it there should be lots of opinions online after everyone starts riding and tuning… cheers, hope you enjoy the sled and great to have you on board… cr
I don’t think any one has to worry about how far the nytro’s are goin to go! These machines get amazing millage off the smaller tank and i am betting that it will even surprise the skeptics….. and if you plan to put an mcxpress turbo on you will have 230hp. By the end of the tank i am sure you will be all played out anyway and a trip back to the truck will be a welcome way to cool down. I also ask has anyone else turboed a nytro rtx or plan on it…… just trying to think of what i want to use for a pipe!
cheers
Hey thanks Colin, I do hope you are right. I would suggest you check out the Nytro MTX board over on TY There are a lot of respected boost gurus over there and plenty of good information on turbo installs and tuning… cheers cr
November 1st, 2007 at 2:55 pmI just got a used 1993 Phazer and can’t find any info about what size it’s gas tank is, does anyone know?
Well Linda you came to the right place, having had several Phazers over the years… 31 liters and don’t trust the site tube when you’re runnin on fumes!!
December 7th, 2007 at 1:14 pm…cheers cr
I have a Nytro Mtx and i love it… it is awesome to ride and everything but.. The only thing is the stock sound. I want it to be loud and proud without having to turbo and what not.. Is there a pipe i can put on?? If there is email me at: carson_fire@hotmail.com and send me the info.
Sorry Carson, I understand your desire but can’t endorse it. We have lost far too many trails and riding areas due to noisy engines (bikes sleds and ATV’s).
Leave it stock and let your thumb do the talking…
cheers cr
January 17th, 2008 at 10:28 pmI have a MTX, Ride in the mountains of WY,
consistent fuel mileage = 8 mpg.
seem to always run out at 60-65 miles,
someone has got to make a bigger tank to replace the OEM tank, do not want a tourbuddy, cant get to far from the pickup!!!
I’ll pass along your comment Rick and thanks for taking the time to write, … cheers cr
January 29th, 2008 at 3:49 pmJust pick up a new 2008 nytro mtx. I am very impressed. Before my first ride i installed a 4′ adjustable riser, modded the pipe 90 degrees into the tunnel. Now i have room for a ski rack and spare 10 liters of gas on back. I cut holes where your feet stand to kick out snow. Added scratchers to save wear on the sliders. The mountain bar would be better if it was just an adjustable strap instead of a fixed piece of steel. My second trip out i was tandemming up all the slopes with the revs. My friends with the revs have tried my sled and think it feels great. I wish the foot bar was 1/2″ taller so i could put some wide downhill skis under it and against the tunnel for the long approach to the mountains for skiing,and that would give a little more room for people who sled in ski boots. This is the perfect machine for sled skiing.
March 13th, 2008 at 10:39 pmI am currently an 06 Apex owner and wish to buy an 09 xtx Nytro. I read your Feb 8/08 post where you said it was designed “to be more trail-able”. Where is the additional storage for a trail rider, the accessory power outlet and the larger gas tank. Now that it is March 08, what kind of miles does the Nytro get out of a tank for average trail riding and snow conditions?The Apex will get 125 to 140.
Hey Jerry, good questions indeed. The original concept of the Nytro had it focused on riding rough trails for shorter distances which fits well the US mid-west model. Up here we all ride the same trails regardless of their conditions and are blessed with the best trail system in the world. Storage and fuel requirements are different from the original concept and unfortunately they can’t be easily added after the fact, in production without redesigning the whole machine.
March 17th, 2008 at 5:41 pmIt’s a great sled but you better consider and budget some of your Yamabucks to add fuel capacity (tour buddy / tank / caddy / rack) storage, (caddy / soft bags / rack) and an aux power jack of your choice. On-trail the sled will generally yield just over a 100 miles. Off trail / deep snow, all bets are off… hope this helps, just keeping it real… cheers cr
Hi Chris…Thanks for the reply. The 09 XTX is ordered as of April 9th and the suggested accessories will come later. Please keep us in the loop as fuel options become available from aftermarket suppliers. Tour Buddy has an option and I understand a company?? makes a larger tank to replace the OEM tank..J
No worries Jerry… I just received a sample of the the replacement tank from Seth, it appears they have a done a very good job, it looks well engineered and finished, I’ll post some pics soon as I get a chance.
April 12th, 2008 at 9:07 amI also have a 09 Nytro xtx on order. My first Yamaha, I was a Polaris man before this. I did notice the skis on the xtx were small and narrow for a 144″ sled. Do you have any suggestions on which replacement or after market skis work well with this model or other Yamaha models? Im leaning towards Simmons flex skis unless I hear other wise before next season?
Hey Bob, it’s hard to recommend skis as this becomes quite objective for the individual. If you are in a lot of deep snow, the Simmons would likely be a good choice as would our mountain ski. If you are trail riding I would suggest you at least try the stock ski but throw on some after market carbides. Our skis get a bad rap where actually they work quite well. It is our traditional approach to carbides that effects the handling more. cr
May 14th, 2008 at 7:32 am90% of my riding is on trail. One day this last season we broke trail for a full day and it was fun. So I do not go deep snow riding often. I think I will try twin carbides and purchase the front arm protectors and belly pan that goes up to the front bumper. I was told those two things help keep the front end up in the deep snow also?
Good starting point Bob, I am particularly fond of the ‘Quaipieces’ carbides (single with a bull nose plate) but the duallies also do the the job. We also have wide ski-skins in the works which are an inexpensive solution to more flotation… enjoy cr
May 15th, 2008 at 6:56 amI put 2500 km on my 08 Nytro MTX last year and it was the best fun I have had in 15 years of sledding.I sled the Power lines here in Northern Ontario for challenging off trail fun but also lots of trail riding to get there. We plan an Extreme Tour to James Bay (look it up on the map)which is ungroomed riding along Power lines and river beds.The best part of the sled is the always there power and torque. It does have short comings though. I had to add a fuel buddy system just to match the range of my friends who ride a Polaris 800 RMK and a 1000 Cat – both gas guzzlers.
November 2nd, 2008 at 11:00 amRear mount Tour buddy installs and works well and you do not want more weight on the front of this machine. Be carefull not to pinch the lines when installing.I installed the Yamaha exhaust turn out even though it came with a warning label not to install on the MTX. Can anyone tell me why?
I will also be installing new skis as the trail performance vs the other mountain sleds I ride with is very poor. They also do not side hill as well. I am going to try the Simmons unless some would recommend otherwise. This sled also needs less weight on the front end, any suggestions?
i have a 1992 yamaha vmax 750 4 it runs great 3300 kms on it but it really sucks on gas i have no leaks i get like 40 miles out of it on the trails, and i’m out of gas, is this normal? and is there any way i can make it better on fuel, please help.
Justin the original fuel range target for the Vmax was 100 miles / tank but conditions had to be perfect to achieve it. 40 miles however is very poor and I would have to say something is wrong. If it was me, I’d be tearing into my carbs, check specifically the float levels and jetting (make sure someone hasn’t richened things up for whatever reason). Check compression, fuel pumps for diaphram leaks, piston wash to see if one jug is richer than the rest etc… Also check your shift RPM and make sure your clutching / v-belt is on the numbers… It may be a combo of several things that all add up to the poor fuel range.
December 29th, 2008 at 1:23 pmFinally got my Nytro dialed in. I put on the Stud Boy Duce Bars (dual carbide not dual runners) They work great and turn fine in corners unlike ones with dual wear bars.
As my old pal Jerry Doucette would say… watch out the ‘Deuce is Loose’
cr
March 7th, 2009 at 11:17 amHow much of a risk to engine damage would one be looking at by adding a cold air intake and high flow header to my Nytro. The Nytro does not have an oxygen sensor, MAF sensor or TPS which is to say the fuel delivery system can’t compensate for varying air temperatures.
Does adding a cold air intake simply lean the air/fuel ratio, thus giving more hp?
Your honesty would be greatly appreciated.
Best regards,
Thomas
Hi Thomas, I checked with one of our specialists on the subject, here’s his response:
April 22nd, 2009 at 9:15 pm‘I would recommend he contact Ulmer Racing or Hauck because they will sell him a fuel controller, without it his mods will do nothing…………….’
cheers
cr
Please help me with this problem, I just baught a 11month old nytro with 5400km on it I new my warranty was up in nov so I took it out on grass just to make sure this sled ran good, the track was skipping on the drive, so we tightenned it very tight and it still skipps, dealer said because the track is studded no warranty, but the original dealer installed studs. there is only two drive gears on track. is there an update drive gear for my 08 nytro please help warranty up soon.
well shawzy I must first point out, I don’t do warranty on Sled Talk (see terms of use) but you seem like a nice fellow in dire straights… couple of things, the traction you are getting on the grass is much greater than winter will afford which makes the ratcheting more severe. There is no warranty update that I am aware of but there are extrovert drivers available which require and open window track- a rather costly solution. Recommend you have you dealer make sure the suspension settings are correct (limiter straps etc), tension the track to spec and maybe search the TY forums as I recall a few threads on there discussing ratcheting with some additional tips, grass is not a good place to evaluate your ‘snow’mobile… cheers cr
October 20th, 2009 at 6:06 amcr track was not skipping , the track is tightened to spec, the centre is flexing and rubbing the top bolt on centre shock, I found this out by painting inside of track, paint on shock bolts after ride, any ideas
thanks shawzy
I’ll check with boys, this sounds like something I’ve heard before… gimme a few days, flying out to California on Monday. cheers cr
November 11th, 2009 at 5:34 pmcr I have not heard from ya, but I did notice paint on the top bolt of front shock also, do you think the plastic wheels on the top off the shock could be worn down, what is the original diametre of these wheels. and are these wheels just there for precaution or do they always rub on track thanks shawzy.
oops sorry man, meant to ask, too much on my plate to take on the service dept… have you checked with your dealer regarding updates or tech info, as I mentioned before I recall hearing of similar issue in the past, our tech specialists are here to assist your dealer. I can tell you the shock is not supposed to rub on the track.
cheers cr
November 21st, 2009 at 8:10 pmha cr
the dealer charged me 1700.00 for a 2year warranty and an annual service, but could not come up with any solution on how to repair or update the track rubbing on the shock bolts, should I try another dealer,
also my dealer did show his rep from yamaha the sled and no solution, I feel like I have been hung out to dry: I’m starting to regret selling my cat. please help or give me some contacts thanks shazy
hey Shawzy, I left you a PM on your bell.net account… what model and year is your Nytro, I’ll try to find out some info. cr
November 23rd, 2009 at 12:52 pmCR,
December 17th, 2009 at 9:41 pmI have some tech questions!I just bought a aaen high flow header and pipe.Heres the problem there r no maps preprogramed into the power commanders so i was thinking of buying a air fuel sensor.Was wondering what u thought.As i understand as long as i keep my air fuel around 14.7 the motor should be dailed in?Any help would be great.Also thinking about a hi flow intake and changing the plugs to ngk cr10ek Thanks again.Dean
so i have an 09 phazer and nytro fx is the tour buddy the only option for an auxilary fuel tank?
There is a large replacement tank for the Nytro available in the US as well as fuel caddys (special saddle bags that hold custom fit jerry cans available at our Yamaha dealers) but the Tour Buddy is a good option…
December 27th, 2009 at 1:57 pmHey there went for a good ride on the weekend 377 miles six sleds 1 etec 1 800 1 brp1200 1 sdi 1 nyttro xtx 1 vk pro(sitting on fence not sure which new model to buy ) Nytro and 1200 very close on fuel but smaller tank on nytro cost him to be towed to the pump ran out at 102miles 5 short of next fill up. small tank sucks.
January 4th, 2010 at 3:35 pmBeside getting some bad frostbite, here was my 1st full day on my 2nd hand FX Nytro ’08. About -23C(-9F) when I went to start it. A few weak cranks and then the famaliar click-click-zzzzttt. Backed truck and sled into shop and after boosting/charging and unit warming up, ignition happens. After getting off and riding on non-trail, 1-2′ deep snow and deeper drifts, my low fuel light is on at about 85K(53M). Granted it was working hard but that’s what they’re meant for. My tank from full to empty at 107K(65M).
My questions are: will a new battery help the starting situation or is that simply too cold for a 4-stroke? And is this a normal range for these machines? My old SS would go this far easy and my 600MM had way better range as well. Why would they put such a small tank on this machine? I may have to trade it in on an ETEC.
Hey Steve, the small tank came from US product planning influence, Nytro being a ‘bump sled’ where it is only ridden for short distances in nasty terrain from gas station to gas station… never did agree with that one myself. In deep snow you will go through the fuel but that holds true for any snowmobile, the brochure specs for fuel mileage never refer to full load conditions (including the ETEC)
Regarding the hard starting, it should be good at least as low as minus 30C, but your battery should be in top condition, fresh gas also helps, remember most fuel is only good for a couple of months these days and it starts to deteriorate.
December 23rd, 2010 at 8:43 pmHopefully you get things sorted out and the FX treats you well. Cheers cr
2010 rtx nytro, track rubbing on the top off the front shock bolt, taking small pieces off rubber out off my drives on the track, my dealer said track to tight. so I loosened the track and no difference.
January 11th, 2011 at 10:31 pmI sold my 08 nytro because this problem, Iwas told the undercarraige for 09-10 has been changed, any ideas
sincerely jshaw
I have a 2008 Yamaha FX Nytro MTX. 151″ x 2.25″ track. I’d like to extend the track as is burrying in the powder and getting stuck way too often. How far out can I extend that’s “reasonable”?
February 7th, 2011 at 10:23 pmI fail to understand the reasoning behind the exhaust positioning on the latest yamaha sleds. The tunnel get iced up often and requires a prod to get it out at times. The exhaust exit right behind the seat rules out the chance of storage for such things as extra fuel and personal items. Some of us do not want to ride a behemoth like the Yamaha Viking, a venture or some other touring sled. As an owner of several Yamaha products, sleds, motorcycle etc, I am heading to the BRP store to buy something that fits my needs. BTW, Yamaha is not paying attention to those of us seeking utility with deep snow, comfort features as well as casual trail use. JMO
October 7th, 2011 at 11:40 amWell never heard back on my Feb 7th question. So, I did my own research and found that extending to 162″ x 2.5″ Challenger track was the way to go. Less problems with that.
Now, I’m installing a Turbo Boost system and am looking forward to getting the 180-185HP it should produce. Just wished I didn’t need to put Premium in the tank. At $4.50/gallon, this play time will get expensive quick!
Sorry Eric, having a hard time keeping up with comments which require my own research. If I know the answer I can shoot from the hip, if I gotta start making inquiries and surfing the data, I hit the pause button or push onto the back burner. There are lots of experts on both Snow West and TotallYamaha who will have input on your boosted ride… I would think premium fuel is the least of your concerns after the considerable investment in the sled. Consider it cheap insurance
cheers cr
November 9th, 2011 at 11:41 pm