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cannondale27 I found this..... Scroll down a bit in this article to the part about the Clutches. http://www.arcticinsider.com/Article/TECH-TIP-How-To-Tune-Your-Blast-for-12 .

"SSI" Quote: YAMAHA CLUTCH WEIGHT CONVERSION KIT This simple kit is designed to convert your Yamaha YXR/YVX clutch so that it can accept the Polaris, Arctic Cat and Comet style weights with bushing for the pin. The kit comes with machined spacers, pivot pins, and nuts. "VENOM" Quote: This is a...

:( No one here on the forum who has experience of the above modification of their YXR or YVX drive clutch ? :(

The specific sled model does not matter.... It is the theories and techniques behind this that I want to understand and learn. This is a picture of all 4 different flyweights that the sled in question was equipped with during all production years from the factory.

:( I have trouble knowing "how to think" if going from Yamaha to TSK or Polaris flyweights !?!? :( 1. What physical weight should I start with ? 2. What happens to the shift characteristics when the profile/curvature of the TSK or Polaris flyweights differs so much compared to Yamaha flyweights ?

:Rockon: Sounds great ! ...but what about this "tower bushings" that seems to be needed ?

Quote: YAMAHA CLUTCH WEIGHT CONVERSION KIT This simple kit is designed to convert your Yamaha YXR clutch so that it can accept the Polaris, Arctic Cat and Comet style weights with bushing for the pin. The kit comes with machined spacers, pivot pins, and nuts. Anyone here having experience...

OK, everything is back together and working. ...but the track lugs is awfully close to the exhaust system at the back of the sled above the shaft. How much oil should it be in the chaincase ?

OK, skid is out and the track is already gone since it had broken and I have start to take the chaincase off. Do I really need to dismantle the INNER half of the chain case to get the lower driveshaft out ?

*Deleted*

OK, so these sleds have tunnel protectors from factory ( I wasn't aware of that ) but since no one over here in Europe use studs in the track, that should not be a problem to run without them. What about maximum lug height combined with stock drivers ?

I'm looking for advice choosing a NEW track for a friends Apex GT 136" ( 2008 ) ( OE track: 136" x 15" x 1,25" ---> Now completely broken ) What is maximum lug height with stock drivers ? What is the preferable pattern for off trail use but still 136" long ? 1. Camso , BRP pattern , 136"...

Which part is the Transfer Rod ?

:sled1: Hi ! I'm actually a BRP guy but have promised a friend to change the track on his newly purchased Apex GT (2008) OE track: 136" x 15" x 1,25" New track: 136" x 15" x 1,75" Since I am not familiar with Yamaha 4-stroke sleds, I wonder if there is something special to consider when...

:sled1: Hi ! I'm actually a BRP guy but have promised a friend to change the track on his newly purchased RX Warrior GT (2008) OE track: 136" x 15" x 1,25" New track: 136" x 15" x 1,75" Since I am not familiar with Yamaha 4-stroke sleds, I wonder if there is something special to consider...

:Rockon: Thank you ! :Rockon:

From what sled does the cooler come from ?

Hi ! I need some help here... Can someone measure the C-C distance between the mounting points in the Yamaha handlebar riser block, or in the steering mounting plate ? Is it the same bolt pattern in the bigger Yamaha 4-stroke sleds ? At what different heights can they be bought as accessories ?

1. Where can I find a complete list of all OE Yamaha Helixes ? 2 a. How many Straight angled helixes is available from Yamaha for the YVX-secondary ? 2 b. Yamaha part #'s ? 2 c. and what the deegres are on the helixes ? 3 a. How many multi angled or proggresive angled helixes is...

:Rockon: I think I understand. Anyone having some pictures of a machined helix ?