1980 KZ750H LTD 4 cyl. When i ride for a long time on a hot day and than shut bike off for several minutes than when i restart bike it runs extremely rough no power. So i pulled plug wires one by one. found 2 3 no spark.
i pulled the 4 wire connector from the IC ignitor. like the book says to test ohms across black and blue i have 500ohms yellow and red i have nothing. but if i let bike sit for an hour or put a fan onit it starts up and runs fine.
any Help??
Where physically is the ignitor mounted?
If it's being heated by the engine you could have an intermittant thermal fault.That said,how good are the connections?
Replace the IC Igniter pickup coils and electronic module with a Dyna S ignition.
www.z1enterprises.com
- sure sounds like the igniter is bad and in need of replacement.
wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!
I've had this exact same problem off and on as well and it seems to have started again tonite. I put a lot of trust in Wired George so I tested his theory first. Testing my coil secondary resistance, I first thought I had a bad coil since I could not get a circuit between the two pins. fiddling a little more and putting my leads down to the bottom of the pin connector at the base of the connection to the coil body would give me a reading of 12.4K ohms off and on. I figured that there must be a lot of corrosion on the coil pins which are very hard to clean since they are inside the threaded housing of the coil. I put some vinegar around the pins and let it soak while I folded some 400 grit sandpaper to further clean those pesky pins.
That seemed to do the trick. It runs good now. I think it was a bad connection between the plug wires and the coil. That push-on connection has always seemed to be a bit problematic.
