NewToXs
XS650 Enthusiast
I just got a new to me 1980 XS 650 as a cheap foray into "Classic" bikes to see if its for me.
It's in ok shape but does reflect its age. I've been riding it an notice it will occasionally fall on it's face from about 2000 rpm to about 3500 rpm. If it stumbles it will not pull out of it until it hits 3500 rpm. You can get it out of the stumble by either down shifting or pulling the clutch to rev it up.
This seems related to the timing/ignition to me and not fuel related as the stumble happens regardless of throttle position.
Does this sound like I'm on the right track and its related to the timing advance not consistently working?
It's in ok shape but does reflect its age. I've been riding it an notice it will occasionally fall on it's face from about 2000 rpm to about 3500 rpm. If it stumbles it will not pull out of it until it hits 3500 rpm. You can get it out of the stumble by either down shifting or pulling the clutch to rev it up.
This seems related to the timing/ignition to me and not fuel related as the stumble happens regardless of throttle position.
Does this sound like I'm on the right track and its related to the timing advance not consistently working?
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