only half the engine heats up?!?

[earlfor]

Glad to hear you're up and running. Try to keep it legal at least until you give yourself a chance to get used to it. When things go wrong, the world goes from rightside up to upside down, in about a millisecond. :-) Usually, it really hurts.

Earl

[ZinMaker]

two cold cylinders

I have this same problem. The normal firing order on my 1981 GS 750E is 1, 2, 4, 3 . Cylinders 3 and 4 exhaust on the right side of the bike are still cool after the bike warms up. When I switched the plug wires to the fire as 3, 4, 2, 1 now the left side of the bike stays cool and the right side warms up.... I am getting a spark on all cylinders. I looked for any spark jumping from a leaking to ground and didn't see any. I have replaced the signal pulse generator. I had the coils tested and they are fine. Any help would be appreciated.

Thanks

Bruce

[snowbeard]

bruce, go re-read earl's description, sounds like you've crossed the very same things!

make sure one coil is plugged into the middle two cylinders and the other to the outer two (this is considering all four across) if it works you're good, if not use the other coil to fire teh outside two and vice versa?

glad to hear you're up and running guest, be safe and get a good feel for 'er, you've got one beast of a bike there...

[ZinMaker]

Thanks, read Earls post, and thanks, what helped me out in getting the correct firing order I have the plug wires as follows 1,2,3,4 and the bike ran on all four. Then went back into the carbs and adjusted the float level and the bike runs great! I've had my GS 750 for 6 years and can't remember it running much better. I haven't had my bike on the road in about 8 months and missed a great summer of riding :-(. I still have to check the plugs and maybe adjust the fuel air mixture, check out http://www.factorypro.com/tech/carbt...m_engines.html

Thanks,