Engine running unevenly, bike lurching - Page 2

jdrider · 07-01-2011, 11:36 AM

Sounds easy enough. I'll give that a shot before I fork out any money for anything. It would be nice it if was just a simple fix.

Thanks!
Jen

alantf · 07-01-2011, 11:51 AM

Quote:

Originally Posted by jdrider

It would be nice it if was just a simple fix.

Bet you it is. Sounds like one of the NORMAL geezer idiosyncracies.

:2tup:

Water Warrior 2 · 07-01-2011, 04:54 PM

Just one question. When does the lurching occur ?

jdrider · 07-01-2011, 05:56 PM

It's most noticeable when in 1st, but it's still intermittent going up to around 40-50 mph, just not as problematic.

It's constantly inconsistant - not just when shifting and such.

Water Warrior 2 · 07-01-2011, 06:30 PM

Sounds a lot like carb problems as others have said. I would also be looking at the chain for seized links which might be adding to the carb/engine roughness when on the road. For that matter, how new/old is the chain and is there a lot of wear on the sprockets? Old worn sprockets and a worn out chain will have the chain trying to leap over the teeth and cause lurching often enough. Not a good thing.

jdrider · 07-02-2011, 01:10 PM

Chain is in good shape but I was thinking about doing the 16 tooth sprocket mod after resolving the carb issue. I may just change the chain then anyway.

Water Warrior 2 · 07-02-2011, 11:43 PM

Quote:

Originally Posted by jdrider

Chain is in good shape but I was thinking about doing the 16 tooth sprocket mod after resolving the carb issue. I may just change the chain then anyway.

If the chain and both sprockets are original you might as well change everything. That is my view on things but then I really don't trust older used parts with a possible bad maintenance record.

07-01-2011, 11:36 AM	#11
jdrider Junior Member Join Date: Jun 2011 Location: Kansas Posts: 8	Re: Engine running unevenly, bike lurching Sounds easy enough. I'll give that a shot before I fork out any money for anything. It would be nice it if was just a simple fix. Thanks! Jen Login or Register to Remove Ads
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07-01-2011, 04:54 PM	#13
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Re: Engine running unevenly, bike lurching Just one question. When does the lurching occur ? Login or Register to Remove Ads
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07-01-2011, 05:56 PM	#14
jdrider Junior Member Join Date: Jun 2011 Location: Kansas Posts: 8	Re: Engine running unevenly, bike lurching It's most noticeable when in 1st, but it's still intermittent going up to around 40-50 mph, just not as problematic. It's constantly inconsistant - not just when shifting and such.
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07-01-2011, 06:30 PM	#15
Water Warrior 2 Senior Member Join Date: Dec 2006 Location: Squamish B.C Canada Posts: 11,409	Re: Engine running unevenly, bike lurching Sounds a lot like carb problems as others have said. I would also be looking at the chain for seized links which might be adding to the carb/engine roughness when on the road. For that matter, how new/old is the chain and is there a lot of wear on the sprockets? Old worn sprockets and a worn out chain will have the chain trying to leap over the teeth and cause lurching often enough. Not a good thing. Login or Register to Remove Ads
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07-02-2011, 01:10 PM	#16
jdrider Junior Member Join Date: Jun 2011 Location: Kansas Posts: 8	Re: Engine running unevenly, bike lurching Chain is in good shape but I was thinking about doing the 16 tooth sprocket mod after resolving the carb issue. I may just change the chain then anyway.
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