Losing revs
 

Hi newby on the forum. I've got a 99 sv650s and recently it's been losing revs at high speed . The counter will intermittently go to zero then pick up causing the bike to jump and when idle the bike will just stall due to the revs being too low.hope you can help

Re: Losing revs
 

The bike jumping....loosing revs....is causing the "counter" to indicate the loss of rev....not the other way round. Check spark plugs.....ht leads...maybe loose causing drop in rpm. Plugs could be shot all together. Thats where id start.

Re: Losing revs
 

Cheers I will start there

Re: Losing revs
 

No rev counter would indicate lack of signal from the coil, left hand one (rear cylinder). Lift the tank and its just next to the frame. Probably just a bad connector.

Re: Losing revs
 

hi i have a 99 sv as well and as im going down the motorway it keeps sort of cutting out for a second or 2 like iv just hit the kill switch on and off for a second iv just done a service plugs oil filter speedo dosent do anything like whats being said on here but my battery seems to go flat after a week or 2?? any ideas cheers.

Re: Losing revs
 

If you hadn't said about the battery I'd have said to check the sidestand as that bouncing around on the motorway caused mine to cut out momentarily once or twice.

Sounds like a deeper electrical issue though - would suggest reg/rec but I'll set the QI-style idiot alarm off...

Re: Losing revs
 

hi thanks for the quick reply i was thinking the same as it seems to be getting worse and a friend checked the battery when running and the charge was going lower the more i rev her but thought i would ask just for chance i mit have missed something else as iv only had the bike for a couple of months, cheers.