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dooner17
04-07-2005, 08:14 PM
My friends 200s suddenly burned out a couple plugs started bogging out sometimes, and backfiring when gearing down. I dont know what the problem is. It never did any of this before. The only thing is that the cam chain is reslly loose. It slaps horribly. Also he may have gotten water in his gas. Any ideas?
wheelie king
04-07-2005, 08:43 PM
The problem sounds fuel related, but definitely tighten the chain. Lean out the air/fuel mix some, and make sure that the case is not overfilled with oil.
dooner17
04-07-2005, 08:50 PM
chain wont tighten he needs a new one. lean is in or out?
MTS
04-07-2005, 08:55 PM
lean is out, if his chain dosent tighten chances are that the tensinor is toast, if the chain is really loose it could have skipped a tooth or something
wheelie king
04-07-2005, 08:56 PM
I'd move the needle down a click- meaning to move the e clip up on the needle-- therefore less fuel. Leave all the screws on the carb where they are and see if that does it.
Huffa
04-07-2005, 09:04 PM
Before dicking with the carb, :rolleyes: REPLACE THE CAM CHAIN! Cam chain loose = irratic timing I would think which might cause it to back fire.

You don't need to pull the head to do this. It is quite easy.

http://www.3wheelerworldforums.com/showthread.php?t=31213&highlight=200S+cam+chain
dooner17
04-07-2005, 09:35 PM
I know, i think i started that thread. I'd think the chaoin is just stretched rather than the tensioners .
thanks
wheelie king
04-07-2005, 09:59 PM
They are definitely right about the timing. I made the suggestion I made, because moving the e clip on the needle will take a 10 mm wrench and about 5 minutes from start to stop ;) .
dooner17
04-08-2005, 07:02 AM
y the 10mm?>
crackshot
04-08-2005, 08:09 AM
what do you mean by "burning out" the spark plugs?
wheelie king
04-08-2005, 11:55 AM
10 mm -------That's what will pull your fuel tank so that you can access the top of the carb.
dooner17
04-08-2005, 09:40 PM
the plugs are black and wet. It burned another one today when he went to start it.
Wickedfinger
04-08-2005, 11:27 PM
You'll be sorry if that thing jumps time at speed ..... fix the cam chain first.
dooner17
04-09-2005, 09:06 AM
iknow i have one om going to sell him. It was brand new for my XR200 but I sold it.