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Motor was adjusted wrong and carbs put back wrong before I got to it. Motor would run rough and shake below 2000rpm start leveling out above. run great anywhere above 2000. Checked comp spark and fuel sample out of carbs, element filter, water fuel separator. Fuel good. Comp 100psi across all three. Spark seemed to jump on the board. Not flow consistently on all three. This motor is suppose to fire #1 and #3 off charge coil and #2 off of cps and cdi.
I dva tested charge coil and failed to reach spec voltage. Replaced. Also is when I pulled carb cleaned put back on adjusted sync and lync. I continued dva voltage testing the rest of components. Cps failed the 5v min only 2.5 either connected or disconnected. lighting coil giving an extra half a volt to the battery when motor running. pulser coil connected 3.5 disconnected 2.5
cdi 118 v at ignition coil lead to ground on all 3 cyl when cranking. 9 k ohm on all three coil to ground. Motor has run lot better and starting easier now that all above has been done. However there is still a shake almost misfire below 2000. shafts aren't bent prop or drive. prop is good. also timing is off by 7 deg.
When brought back to proper 7 de atdc none of the linkage lines up between cdi throttle cam etc. I'm confused as to why this motor is firing all three cyls while cranking. why the cps is failing its test. to me it seems like magnets in the flywheel or one of cps or cdi is causing/failing spark.
Thanks
I dva tested charge coil and failed to reach spec voltage. Replaced. Also is when I pulled carb cleaned put back on adjusted sync and lync. I continued dva voltage testing the rest of components. Cps failed the 5v min only 2.5 either connected or disconnected. lighting coil giving an extra half a volt to the battery when motor running. pulser coil connected 3.5 disconnected 2.5
cdi 118 v at ignition coil lead to ground on all 3 cyl when cranking. 9 k ohm on all three coil to ground. Motor has run lot better and starting easier now that all above has been done. However there is still a shake almost misfire below 2000. shafts aren't bent prop or drive. prop is good. also timing is off by 7 deg.
When brought back to proper 7 de atdc none of the linkage lines up between cdi throttle cam etc. I'm confused as to why this motor is firing all three cyls while cranking. why the cps is failing its test. to me it seems like magnets in the flywheel or one of cps or cdi is causing/failing spark.
Thanks
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