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Author Topic: Engine "surging"  (Read 970 times)

Offline bobandbec

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Engine "surging"
« on: 08.10. 2014 23:49 »
Hi
Riding the A10 today the engine was surging/revving faster than expected as I increased the throttle anything above the initial position.
The only thing I've done to it since last riding is to fit an in-line external oil filter on the return and drained/changed the oil with an SRM sump added as well. Surely nothing to do with the surging?
Thought it might be a carb problem maybe?
Any thoughts for a novice mechanic/bodger.
Thanks
Peter
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Offline wilko

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Re: Engine "surging"
« Reply #1 on: 09.10. 2014 00:11 »
 Was it behaving normally before you changed things?
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Offline orabanda

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Re: Engine "surging"
« Reply #2 on: 09.10. 2014 06:31 »
Fuel tank breather blocked?
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Offline bobandbec

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Re: Engine "surging"
« Reply #3 on: 09.10. 2014 08:36 »
Yes normal throttle last time I rode which was about 2 or 3 weeks ago.
I'll check the fuel tank breather today.
Thanks
Peter
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Offline bobandbec

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Re: Engine "surging"
« Reply #4 on: 16.10. 2014 22:49 »
Found out today that one HT lead was "fractured" internally and so was intermittently connecting/not connecting.
After fixing seems she is running sweetly again.
Thanks
Peter
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Offline muskrat

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Re: Engine "surging"
« Reply #5 on: 17.10. 2014 23:33 »
That's good Bob.
Shows the old saying "most carb problems are electrical"
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
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