Motorcycle Repair: spindle and timing, honda cr250r, partslist

Question
on a 1986 honda cr250r, what does the spindle do on the crankcase and how do you adjust the timing?

Answer
Jerry, that is a somewhat vague question....

http://www.cmsnl.com/honda-cr250r-1986-usa_model7327/partslist/

"Spindles" on the engine include shift spindle, kickstarter spindle and exhaust valve shafts.

I'll take a guess that you are asking about the exhaust valves.

http://www.cmsnl.com/honda-cr250r-1986-usa_model7327/partslist/E++0502.html#resu

The ignition timing is pre-set from the factory, controlled by the CDI module.

http://www.cmsnl.com/honda-cr250r-1986-usa_model7327/partslist/E++02.html#result

If you are going to go deep into this bike, I would suggest getting a factory manual or finding a matching CR250R forum on the web to help you maintain this complex 2 stroke race bike.

Bill Silver