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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Tore apart top end to get the heads off to extract some sheared exhaust studs. Put it back together and it runs but it sounds like it’s just running off one cylinder and had very little power. Tested compression and both cylinders were at 180. Replaced plug wires and the front cylinder gets spark but nothing at the rear. Inspecting the plug to the ignition coil it appears to have quite a bit of corrosion. Tried to get an ohms reading and it was inconsistent/difficult to get a reading. Swapped plug wires and still no spark at the rear. Bike has for years occasionally died at stop lights after really getting on it. During top end tear down the rear cylinder looked much worse than the front, light rust on the cylinder wall and more carbon buildup on the piston. Previous owner would fully wash it once a week during summer basically. Thinking that’s why there’s so much corrosion on the prongs of the ignition coil. Is it safe to assume I have a weak and dying coil?
Sure looks like it. It looks like it’s broken off in the plug end coming from the wiring harness. How do I go about replacing the connector end with the 4 wires coming from it?
Sure looks like it. It looks like it’s broken off in the plug end coming from the wiring harness. How do I go about replacing the connector end with the 4 wires coming from it?
Sure looks like it. It looks like it’s broken off in the plug end coming from the wiring harness. How do I go about replacing the connector end with the 4 wires coming from it?
Yes there is.. If you look in the male connector I'll bet you find the missing pin. and no need to start another thread..
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Bad ignition coil?
