I have a 2001 Yz426F and the bolt that holds the decompression assembly into the motor is leaking oil. I still have the bolt but it won't tighten down, it just keeps turning and oil is seeping out through the hole. By looking at the bolt I'm pretty sure that the threads on the motor side are stripped. So I'm thinking that I may have to re-tap the hole and replace the bolt and gasket with a bigger ones. Anyone have any suggestions on how I would go about doing this and finding a bigger bolt that would still do the job afterwards? Thanks.
On the OEM parts diagram for the Crankshaft - Chain the bolt and gasket I am talking about it part #13 and 14.
Edited by fmx09, July 29, 2014 - 02:21 PM.