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View Full Version : 50 hp 2 cylinder miss on # 2 Yamaha?



davepnola
07-11-2005, 12:17 AM
Will a restricted exaust on this motor cause the lower cylinder to miss?
Also seems like the cylinder sure has lot of fuel spitting back out the carb?

Is there a test I can do to check the exhaust for restriction?

seems this motor would fire a little bit on this cylinder since compression is good. fire is good, plenty of fuel ?


As soon as you pull number 1 spark plug wire engine dies?

Also no difference in engine when 2 is pulled while running?

Jeeze never thout a 2 cylinder could be so tough, what am I missing?


Is there a specific way to test that number 2 cyhlinder is firing in time?