NEED HELP WE HAVE A 1980 YAMAHA EXCELL THAT STARTS RIGHT UP AND WILL RUN STRONG FOR THE FIRST 15 MIN. OR SO THAN IT WILL RUN ONLY ON ONE CYLINDER. PUT A NEW COIL ON IT DID NOT CHANGE. WHEN IT COOLS DOWN IT WILL RUN FINE AGAIN.
THANKS FOR THE HELP IN AVANCE
SHOEMAN
LET IT SNOW
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THANKS FOR THE HELP IN AVANCE
SHOEMAN
LET IT SNOW

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Magneto maybe or something down down there not generating enogh power to do 2 spark plugs?
Had and old 79 enticer 250 did the same thing (only its a single) once warmed up it would quit. Change the plug to a cold one and away you go. Changed the stator I think(can't exactly remember so I will ask Maim) and it runs like a champ now.
Had and old 79 enticer 250 did the same thing (only its a single) once warmed up it would quit. Change the plug to a cold one and away you go. Changed the stator I think(can't exactly remember so I will ask Maim) and it runs like a champ now.
Thanks What kind of Wattage should i have out of the magneto?
I think the trouble is electrical not sure how to check it out
Please Help
I think the trouble is electrical not sure how to check it out
Please Help