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20HP ML - Only running on 1 cylinder.

J

JesperS

New member
I have a Mercury 20HP 2stroke ML model from 2002.

It only runs on 1 cylinder - But i have ignition on both cylinders with strong sparks, both are compression tested with an average of 8.8bars - and carburator and all cables are cleaned and tested. If i remove the spark on the bad cylinder and start the engine, i can clearly see the cloud of fuel comming from the bad cylinder..

Compression, Spark and Fuel and still no life.

I feel like i tried everything, and calling different dealers and its been taking me forever.

Really hope someone outthere is more clever than me..
 
Reed valves checked ?-------Position of the cylinder sleeve checked ?----------Perhaps remove one of the bypass covers to check that.
 
racerone said:
Reed valves checked ?-------Position of the cylinder sleeve checked ?----------Perhaps remove one of the bypass covers to check that.
Click to expand...

Reed Valves checked yes, but i dont have the sleeve checked and dont really know what it is..

If i open the engine and pull the crank, will i see it?
 
I mentioned to remove the bypass cover to check the sleeve.-----------Confused by this advice ??--------Then have your shop check this.
 
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