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cheers

I spent many hours searching for the cause of missing 3-4lbs of boost. I had my winder flashed with the Hurricane Tune and after going through the entire sled front to back on clamps, hoses, fittings, boost leak tests. The culprit ended up being my GGB mountain can that after purchasing and...

are you running a 270 tune with a stock exhaust? How much boost are you making? I was short an excessive amount of boost not utilizing an increased flow muffler

Found 5’ of powder yesterday about a foot more than last week. About 20miles east of where we were last week. Snowed about 2” throughout the day. Found an area relatively untouched and played around for a good 10 minutes. This time around I had removed the float from a secondary to a mm or...

Just looking at the tack. On trail at about 20mph and grabbing a handful of throttle I seen 9050 last night. I might toss a slightly bigger slug in there wrapped at 90

Yep I took a look and everything was dry. Very impressed for the 15-20 mins i actually held it wide open, just concerned seeing that cord hanging out. Going to go with Knapps findings and wrap the dalton b/o at 90. I’m currently at 80

Is everyone’s primary inner sheave very hot to the touch? Secondary inner sheave? Outer is ok but the inner is wild.

I guess for the 15-20 mins we scooted around in this field with 4’ of snow and only three long 100yard pulls in some deep snow I figured with a near new belt and babying this sled until yesterday that this wouldn’t have happened. Put it this way, I wouldn’t dare hold this thing wide open on a...

Update here. Sled running great, belt issue possibly. Rpms and boost is bang on. 8900-9000. 17.4lbs, wheelie monster in the snow we have. About 4-5 powder. Still was running the ultimax 5085 belt from the start of the season when I blew the last one. At that time I had done about 50kms on it...

What is your secondary spring wrapped at?

Got an xs825 belt and the v2 b/o. Wrapped at 90. We’ll see how things go.

Nothing new here. Was a victim of belt blowing once the sled was tuned. Offset was 62mm. That has since changed to 58.12mm when the ultimax belt blew a couple days ago. Thunder products rollers in primary and secondary and I am replacing my current dalton springs in primary and secondary just so...

the only reason why this isnt a recall is simply due to the fact of a web community like this looking out for each other. Not Yamaha, publicly recognizing this and stepping up to provide a simple fix.

Had the same issue. I went with a combo tune from Hurricane. After deliberation, kept my aftermarket pipe in favour of saving a few bucks on the entire kit and shelling out another $600.00. After 50+ hours boost leak tests, shaving clamps, new clamps. Everything. Turns out the pipe was the...

ive been chasing 4lbs of boost since November and spent nearly 50hrs in the shop chasing this. I went with a Hurricane tune 240-270-300 and when doing so asked the question whether or not my GGB mountain can was going to be ok with the tune. It should have been fine. It's now March and I went...

We may all know what happens here on TY but when you typically blow a belt not very many people would look to checking their alignment right after that. Most of the threads I read when the SW came out many were chasing the perfect alignment mm. If it pushed in enough for the primary to make...

Dealer had it 500kms ago before the season started and the top gear was worn after 2000kms and the new top gear with a different design "lubrication holes" was put in its place. Didn't put many miles on there so its best to keep my fingers out of there till next season lol

Adding Chain Case Fluid Tutorial(56K Warning) | TY4stroke: Snowmobile Forum | Yamaha - 4 Stroke Looking for a tip on filling the chaincase oil on a sidewinder. I checked the sticky at the top of the forum and I see there is a writeup but the photos are gone which would help a lot. Plan of...

tuned or not. Everyone is going to blow a belt sometime on these sidewinders and for the type of damage to occur is that not something Yamaha should be addressing by form of a recall to seat a new bearing in there with green locktite? Seeing that primary and secondary damage it's unbelievable...

just changed my plugs. Wasnt chasing RPM, chasing boost and although conditions were better the result still hasnt improved but I get to cross it off the list!