Hello,
I have a problem with my 81 XS650. It is misfiring at around 2K rpms and no matter how much throttle you give it is can't get much higher than 2500 rpms. Sounds almost like a rev limiter. However, the bike appears to idle normally.
Here are all the things I've done so far:
Used the Clymer manual and a multimeter to check the ignition coil resistance on the primary and secondary coils and it was within the proper specs.
Replaced the ignitor box with a used box, no change.
Replaced the spark plugs, no change.
Cleaned the carbs - twice, no change.
New air filters, no change.
Here is a video of my problem.
I am really at a loss for what this can be. The ignition system is pretty simple and I think I have tested pretty much everything it can be. Does anyone have any ideas about what this could be? Any help is much appreciated. Thank you in advance.
I have a problem with my 81 XS650. It is misfiring at around 2K rpms and no matter how much throttle you give it is can't get much higher than 2500 rpms. Sounds almost like a rev limiter. However, the bike appears to idle normally.
Here are all the things I've done so far:
Used the Clymer manual and a multimeter to check the ignition coil resistance on the primary and secondary coils and it was within the proper specs.
Replaced the ignitor box with a used box, no change.
Replaced the spark plugs, no change.
Cleaned the carbs - twice, no change.
New air filters, no change.
Here is a video of my problem.
I am really at a loss for what this can be. The ignition system is pretty simple and I think I have tested pretty much everything it can be. Does anyone have any ideas about what this could be? Any help is much appreciated. Thank you in advance.