I've wanted to do this for some time and it always comes in fits and stops.  structure has always been iffy but I think I've worked out the basics.  and it'll always be a work in progress and a group effort.  

I've created a thread called "Trouble shooting guide" in the tech section.
we'll discuss how-to in here and we'll mod/lock the guide.

In the guide, we'll list the symptoms and link solutions as separate posts...
such as "won't start" will link to another with another list of symptom or causes.
finally we'll link a solution.

for me, hitting a link opens a new tab, so if it leads to a dead end, it'll be easy to go back and try a different branch, if there is one.

Trouble shooting guide

thinking out loud is what I'm looking for... this may even evolve into a help thread as we work out all of the possibilities for each symptom.

Looking forward to it dave.

For pulley noise... would say it's a clunk clunk... or something else?

"card in the spokes" type noise, cadence follows wheel rotation.

Some low speed engine deceleration on a long slow downhill makes the best test case because you can hear the frequency change as the bike slows down.   Actuating clutch cuts the noise off, reengaging brings it back.

Suspicion of a loose pulley should cause an instant re-torque.

Now that we Raptor regularly as a prevention and put in a Slavy on the cam chain regularly at 13-15,000 miles this "loose pulley eat the splines" has become the #1 killer of engines.^*    This is verified by the Ryca folks since their chain mods have even less spline engagement compared to our wider pulley engagement.



^* (apart from not checking the oil level and then running plum out of oil,  of course)

Ryca issues stem from the swing arm angle due to the longer shocks , adjustment of belt or chain properly is hard , easier with belt cause it has some give to stretch alittle , but with chain a tensioner is needed. I had to buy one and fab it on the Ryca .

batman wrote on 01/05/17 at 08:53:50:


That's a good daily hot tip, I've noticed a vapor trail on the gas cap coming from the keyway when I truck my beast acrost country to the meetings.  I'll have to remember to pack some tape.