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Dirt Bike Brands - Other
Possible explanation/fix for the some of YZ426 clutch problems.
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[QUOTE="RichardM, post: 17820, member: 17858"] Hi Chip, Recommend is a strong word and I take it back. I do not recommend anything outside what the manufacture says and though it may be obvious people reading anything on the internet check with a qualified mechanic or someone who knows what they are doing unless they are willing to experiment at their own risk. This is my experience and was done buy a qualified mechanic to my YZ400. You can order the higher tensile strength sprocket bolts from Moose racing supply. Most dealers have a catalog. Stock is about has a rating of about 8.5 and the ones from Moose are about 16. The idea behind doing this is it allows you to tighten the bolts down tighter. On Page 5-2 of the manual it states 30 ft-lbs for torque. With these bolts you can use 35 ft-lbs or a little more(Funny how Yamaha recommends locktite for the front brake disk but not for the sprocket. I know the stock bolts are the self locking type but in my opinion they do not work. Red locktite has a stronger hold. When you are at you local auto parts store, read the packages, it explains it better than I could. The possible downside to doing this: Over tightening the bold could break or weaken the hub (not very likely but possible, more likely you will sheer the bolt off) Using red locktite could make it difficult to remove the bolt and you may have to drill it out (also not likely, but in the automotive work it has been though to seize some bolts but that is debatable as well) Personal responsibility. In trying to figure out what happened to my hub I have to include the possibility that I was at fault. It would be foolish not too. The 426 transmission pin, clutch basket, and carb problems (bog) are Yamahas responsibility under warranty and it seems they only take care of customers in or out of warranty in "isolated incidences" to quote the rep. (They did not want to get me a new basket, they wanted to keep grinding on my push rod) <p align=right>05-20-2000 :Edited [/QUOTE]
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Dirt Bike Brands - Other
Possible explanation/fix for the some of YZ426 clutch problems.
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