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30-10-08, 09:34 PM

I rode my bike this morning - warmed it up fully and off i went as usual.

Going through country side around 40mph, my engine had a flatspot mid revs and low revs when changed up a gear, when i pulled on the throttle, it felt as if it was running out of petrol (and theres loads in there as i filled up) and just bogging down.

Coming to the next village, i slowed down and dropped a cog, let the clutch out and there was backfiring!

My thoughts on this?

Misfire perhaps?

Now my bike has been serviced a month ago by JHS racing who are apparently Sv650 specialists. Fine and dandy.

But what i want to know is, what are the possible causes? And are JHS liable to repair them? If its misfire due to a faulty HT lead or spark plug, surely JHS should have spotted this?

Im absolutely enraged, as i paid £600 for a major 15k service, and a MONTH later... THIS SHOULD NOT BE HAPPENING!

Any help and advice appreciated.

30-10-08, 09:34 PM	#1
Phaelok Guest Posts: n/a	Misfire? I rode my bike this morning - warmed it up fully and off i went as usual. Going through country side around 40mph, my engine had a flatspot mid revs and low revs when changed up a gear, when i pulled on the throttle, it felt as if it was running out of petrol (and theres loads in there as i filled up) and just bogging down. Coming to the next village, i slowed down and dropped a cog, let the clutch out and there was backfiring! My thoughts on this? Misfire perhaps? Now my bike has been serviced a month ago by JHS racing who are apparently Sv650 specialists. Fine and dandy. But what i want to know is, what are the possible causes? And are JHS liable to repair them? If its misfire due to a faulty HT lead or spark plug, surely JHS should have spotted this? Im absolutely enraged, as i paid £600 for a major 15k service, and a MONTH later... THIS SHOULD NOT BE HAPPENING! Any help and advice appreciated.