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 Topic: 1993 NSR250R MC21, hard starting? 







Twilight

 
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Twilight » Wed Dec 09, 2009 11:53 pm

compression seems to be good. Is that 180 on both cylinders?

Have you pulled the carbs apart and made sure the engine is getting enough fuel?

You can pull the plugs, put a small amount of pre-mix into each cylinder, replace the plugs and try to start it again.

if it starts easier, it's the carbs. if it doesn't then check the ignition system.


Yes, 180psi in top cylinder and 183psi in the bottom cylinder. Tried pre-mix in the summer when I was doing my intial tear down and clean, it did start easier that way, but was only that way.

The bike has about 5800 miles on it, or 9400 kilometers.

Ive worked on and owned 2 strokes my whole life, but due to almost all parts for the NSR being on the other side of the world from the USA, I didnt want to start going into the internals without a good cause.
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