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GL1500 hesitation when accelerating, all gears

8188 Views 13 Replies 13 Participants Last post by  logos95

I do have off-idle hesitation problem, but also hesitation in higher speeds. Actually, when ever I try to accelerate fast, there's a little time before anything happens and there is noticeable hesitation.
But, if I accelerate heavy, 1st of 2nd gear and continue accelerating through gears (to high rev) there's no hesitation. And I think, that I have mileage ok and after all as much power as there should be.

I read a post about vacuum error, not leak but there is a hose that goes "stuck", I mean that there is actually loss of vacuum. Just can't find it now.

If I release throttle a bit, hesitation isn't that noticeable.

I clear this out more, if I try to overtake a car, I'll have to throttle very gently at beginning, wait a while when the acceleration begins and then twist more.

Suggestions where to begin? Is it very hard to replace all vacuum lines?

Bike is -88 and has now 200k kilometeris in it, so I'm wondering if to leave like it is and ride peacefully, or try to fix this.
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I get the same problem when I take a turn and try to accelerate. Mine is also an 88. Little noticeable other times but I just ride happy. Don't feel like tearing into it. Maybe carb sync will help?
Ditto on this. Have found that three or four doses of Seafoam in the tank has helped quite a bit. Also found that jumping up to 89 octane seems to help as well. Eventually I'll have to bite the bullet and get into them. Hopefully I can get this riding season out of it.
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