No start after sitting over a year

SmokinRZ

Member
Joined
Mar 15, 2020
Messages
91
Location
D/FW
Yes, I love a story with a happy ending. Even more so when it is mine :) My traveling buddy bought a 2013 new and I have been lurking on the Tenere forum for a few years and knew the CCT was the only reliability issue, so I took a chance when this one fell in my lap. The motor is an interference design, but it depends on how many teeth and which cam the chain jumps. Mine jumped the exhaust cam, but from my research, it appears the intake cam is less forgiving and usually happens when installing the intake cam after a valve adjust or installing a manual CCT. My intake cam jumped at least twice when I was trying to get it back together. Installing the intake cam made me nervous. Due to the 270 degree crank, the cam doesn't lay flat in the head with closed valves like the exhaust cam and every other motorcycle with a conventional crank. I tried rotating the motor to a position where the intake valves were closed so that it would lay flat but there was too much tension on the chain and it would jump. I went ahead and installed it the way the Yamaha engineers said and quit second guessing them. It just didn't seem right forcing valves open with the cam while you are tightening the caps and the cam riding in a soft aluminum head. The good new is everything is adjusted to the big end of the range I don't plan in going back in there for another 50K miles which probably means never again. It took a lot of research and persistence to figure this all out but I feel like I have entered the fuel injection age and know my bike pretty well now, so if I have trouble out on the road I at least have an understanding of the diagnostics process. I've owned FI bikes for 15 years and this is the first time I ever had to trouble shoot one. Stay safe.
 
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