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Yamaha FX Nytro tips and tricks

motojunkie101

motojunkie101

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Over time I would like to have an inclusive thread that we can use as a reference to finding fixes for problems, as well as a place to find information about modding the Nytro. There is a subsection for boost, so I'm going to limit this thread to all the non-boost mods and fixes out there.

User manual for any Yamaha you own
User Manuals

Error codes

Yamaha Codes!

Clutching:

Primary clutch rattle
Yamaha clutching

Front Suspension:

Installation and review: Skinz concept A-Arms
What new nytro front end for next year?

Rear suspension:

Which aftermarket suspension is best?
Installation and review: OFT's big nutz axle kit for OEM rails
Arctic Cat skid in an 09' 153" nytro
Nytro Lightweight rear suspension kit

shock length
Snowmobile Shock lengths

skis and ski modifications

Whick skis to upgrade to on my Nytro?
Cutting down the Simmions Gen III Skis

Chaincase:

Nytro Gearing
Lets revisit the broken bolt in the chaincase

track shaft/jackshaft bearing specs

Track shaft and jack shaft bearings for Nytro FX

Body parts:

Skinz Airframe hood
Install and Review: Trail tank high capacity fuel tank
Windshield painting

Seats

Install and review: Skinz Airframe seat kit
OEM Nytro seat from Mountain Mod
Thumbs up to Mountain Assult Seat
WRP seat review

Battery:

Batterys: YT27S
Light Weight Battery?

Roll over oil valve:

OFT Moto-r Kill tether w/Jacobson roll over valve
How to check an OFT rollover valve for proper functioning?

tunnel extension/mods:

2010 Nytro tunnel extensions piece
Rear tunnel mods for Nytro, which kit?
Review and Install: Skinz airframe running boards
Best running boards?
Has anyone polished the tunnel on their nytro?
Installation and review: Skinz tunnel rack and Tunnel pack
Installation and review: Skinz Nytro MTX rear bumper
MPI Tunnel cooler


Replacement pins for plastics:

Pins that hold plastic cost to much..

Covers:

Nytro Cover that fits over the tunnel
Outdoor snowmobile covers for the nytro

skid plates:

Belly Pan
Review: Roest Racing skid plate for Yamaha Nytro


steering post relocation:

Nytro steering post relocation

tunnel block off

Nytro tunnel block off


Exhaust:

Nytro Undertunnel Exhaust
Nytro Undertunnel exhaust length
Best Exhaust for Nytro MTX

Handwarmer fix:

nytro hand warmer fix
OFT's "Yamaheater" Boost Module

The cost of going light weight

Nytro MTX Weight loss cost/per pound


So far that is all I've dug up from the 4 stroke forum on the Nytro, but I KNOW there is a lot of information out there that you guys have compiled since 2008.

This thread has been long overdue for an update, and I have finally got around to adding more links to helpful threads. As always any comments or feedback is welcome and appreciated.
 
Last edited:
Anyone that wants to submit a tech tip, or product review you can either post it up, or PM it to me and I'll add it to the list! If you post it up, I will probably add it to the first or second post (depending on if it is a tech tip or review) so dont freak out if your post dissapears, the information will still be here and I will make sure to give credit to whoever submits the info for us.

The same goes if anyone wants to do a write up on a mod or installation of aftermarket parts, we can all use the shared info.
 
Recommended Break in

Hey man, thanks for the thread, but here is one I would like to see added. For those of us just now moving into the 4 stroke world, I would like to see people's opinions and or factory recommendation (if it exists) on break in process. It seems like I have seen this before, so maybe it is just as simple as linking to the old thread.

Thanks
 
Sure thing, I will look around and see what I can find. There are traditionally two schools of thought here. One is follow factory procedure (idle for 5 minues, take it easy for 100 miles or so, vary throttle position) The other is quite the opposite...pretty much ride it HARD out of the box. The theory is that increased pressure in the engine will help the rings seat better.
 
When breaking in a motor there is really only 2 very important things to follow

1) make sure its to operating temp
2) Don't keep same RPM for long periods of time
1) MAKE SURE ITS TO OPERATING TEMP.
 
MTN VIPER'S ROLL OVER VALVE REVIEW

This little check valve should have been installed from the factory on these leaking nytros. Everyone knows the mess and hassle of tipping over the nytros and loosing oil into the air cleaner. Well Mtn Viper's roll over valve solves this problem completely and adds a few little extras at the same time such as a tether which another thing that yamaha should have put on stock. The Unit is very simple to install and is a well thought out piece. There is safety features for the safety features with this little valve and for some reason it does fail it comes with a bypass feature for it as well. I have been using this for a season now and its flawless.
 
I don't know why but all of your hyperlinks on the first post of this sticky thread are no longer working....Would love to be able to check that stuff out again.
 
Just add "online" after snowwest and they will work. They should have known that the thousands of links posted on this site would go bad once they killed the old address. Hopefully someone fixes it.
 
tip

Don't know where this goes. When your done riding in the spring raise the back of the machine off the floor and spray the track clips whith Slip Plate(available at Napa)its a graphite paint. The clip wount rust.
 
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