Hi All,
Fired my bike up yesterday after a summer of working on it. I've rebuilt the carbs, installed new airbox and intake boots/o-rings, checked for leaks while its running, re-shimmed the valves, all the usual GS rebuilding steps. It was put away in the first place because cylinder 3 was not firing and was running poorly in general.
The same issue came back where cylinder 3 would not fire. The [NODE="3"]Blogs[/NODE] plug cap can be removed while it's running without having an effect on the idle. Cylinder [NODE="2"]Forum[/NODE] is stumbling and the bike runs noticeably smoother when [NODE="2"]Forum[/NODE] plug cap is disconnected.
This is leading me to believe that the 2 - 3 coil is bad. When testing the [NODE="3"]Blogs[/NODE] spark on the block with a screwdriver, it looked very weak. When testing the coils, both primaries read 4.2 ohms and both secondary's read 12 kOhms without the plug caps installed. The plug caps (except for #3) are reading around 10 kOhms as well. I couldn't get a reading on it before I took it apart, but I'm assuming that it is similar as it still did deliver spark when tested. One thing I should note is that I am almost certain that the timing is off, but it is not far enough off for the bike not to run.
I am contemplating whether or not to order 2 new coils. The secondary reading is a bit low, but serviceable from what I've read. It could just be the plug caps, but I'm just not sure. If anyone could throw in their $0.02 I'd really appreciate it.
Fired my bike up yesterday after a summer of working on it. I've rebuilt the carbs, installed new airbox and intake boots/o-rings, checked for leaks while its running, re-shimmed the valves, all the usual GS rebuilding steps. It was put away in the first place because cylinder 3 was not firing and was running poorly in general.
The same issue came back where cylinder 3 would not fire. The [NODE="3"]Blogs[/NODE] plug cap can be removed while it's running without having an effect on the idle. Cylinder [NODE="2"]Forum[/NODE] is stumbling and the bike runs noticeably smoother when [NODE="2"]Forum[/NODE] plug cap is disconnected.
This is leading me to believe that the 2 - 3 coil is bad. When testing the [NODE="3"]Blogs[/NODE] spark on the block with a screwdriver, it looked very weak. When testing the coils, both primaries read 4.2 ohms and both secondary's read 12 kOhms without the plug caps installed. The plug caps (except for #3) are reading around 10 kOhms as well. I couldn't get a reading on it before I took it apart, but I'm assuming that it is similar as it still did deliver spark when tested. One thing I should note is that I am almost certain that the timing is off, but it is not far enough off for the bike not to run.
I am contemplating whether or not to order 2 new coils. The secondary reading is a bit low, but serviceable from what I've read. It could just be the plug caps, but I'm just not sure. If anyone could throw in their $0.02 I'd really appreciate it.
