The Tweaker
Extreme
I am not positive, but I believe my 07 service manual showed the gasket for the chaincase as "NEW" this year.
waspolarisowner
Newbie
my dealer just replaced mine on my attak. He was told by yami rep. to replace cover since I have had alot of trouble with reverse. They also replaced all the gears under warranty.
87gtNOS
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The Tweaker said:
I have these NEW 07 parts...I will report back after the weekend...
Please report back. Curious whats the difference when you lay the 06 and 07 side by side. Different shape, material? My sled is just about out of warranty. Would like it replaced if it's different, better and Yamaha will authorize the repair.
ROCKERDAN
OCD Sledhead
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87gtNOS said:
Hey buddy..
TAKE SOME PICS!!!!!!..i REALLY WANT TO SEE MYSELF!
Dan
87gtNOS
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Dan, I PROMISE to take pics and careful measurements!!!
ReX
TY 4 Stroke God
87gtNOS said:
I still haven't pulled my case apart.
What I know for certain is my buddies have experienced loss of chaincase oil leading to serious problems. In the very first case they experienced, the dealer said the gasket must have been installed incorrectly because it was sitting inside the chaincase in one area. The dealer said they were 100% certain the gasket was now installed correctly so there shouldn't be any more trouble. During the following times, the dealer and several Yamaha mechanics told us the gaskets are shifting when they get very hot. Most have actually said they are getting "sucked in".
The only thing I can think of is the gasket gets so hot it softens to the point it can move somehow. At the same time the dynamics of the oil movement and chain motion cause a local vacuum somewhere which makes the gaskets "suck in". I really can't explain it and I have not seen the parts first hand.
Let us know what you find when you compare the 06 to 07 covers.
machj
Extreme
i changed the cover to an 07 today the only thing i can see is one mm thicker on the bottom the old cover looked like it was old looking for being one year old i think they get hot and warp a little we will giver a true test by the weekend our lakes here our long and we can keep speeds up for a long time
