Strange Engine problem - SV650.org

07-07-09, 12:32 PM

k3 pointy with just over 20,000 miles on it but its spotless and in good mechanical order, been serviced every 4000 miles since new!

heres the problem and its the second time that its happened, about a year ago and now today, and both times after a fast motorway journey.

I will be slowing down and will notice that it cannot keep a steady amount of revs whist trying to hold a speed, then when the clutch comes in to stop the engine just cuts out completely. When i try to start it again it will start, backfire, then switch completely off again. I switched it off and on again and it was able to idle, but then when reved a bit it sounds like its choking untill it gets to about 5000rpm, i then drove home making sure i kept the revs up but again as soon as i got home throttled off and it died.

it then sat in the garage for about 15mins, i then went out to start it again and it appears to be fine!

any ideas to what it might be would be very helpfull!

cheers

07-07-09, 01:14 PM

Ive had the exact same problem, always after being on a motorway. It seems that if I keep the revs constant for a while, then come off the motorway the bike won't hold the revs and will cut out.

Have you tried setting up the TPS? I brought the tool bit required to do this yesterday and will be trying it tonight - i'll let you know if that solves the problem

07-07-09, 01:36 PM

the mechanic in t7 honda sed to me that that was a problem with sv's sometimes but my friend has a k3 aswell and he was with me on the journey and his was fine! but yes i shall await ur info!

cheers

punyXpress · 07-07-09, 03:41 PM

Fuel starvation?

07-07-09, 04:36 PM

nope filled it up n had only drove 40 miles

Red Herring · 07-07-09, 07:32 PM

My K5 had a similar problem, I replaced the TPS and never had any further issues. Apparently they're not that reliable.

07-07-09, 09:20 PM

how much was the sensor? is it hard to change? any idea why it seems to fix itself if the bike is switched off for a while?

Red Herring · 07-07-09, 09:35 PM

From memory about £30 and it was a simple unbolt and refit job, plus a little setting up time.

07-07-09, 09:37 PM

not too bad i suppose. im gonna ring the dealership i got it from in the morning and run it by them to see what they think about it n get prices but thanks very much!

07-07-09, 12:32 PM	#1
warrenhewitt10 Guest Posts: n/a	Strange Engine problem k3 pointy with just over 20,000 miles on it but its spotless and in good mechanical order, been serviced every 4000 miles since new! heres the problem and its the second time that its happened, about a year ago and now today, and both times after a fast motorway journey. I will be slowing down and will notice that it cannot keep a steady amount of revs whist trying to hold a speed, then when the clutch comes in to stop the engine just cuts out completely. When i try to start it again it will start, backfire, then switch completely off again. I switched it off and on again and it was able to idle, but then when reved a bit it sounds like its choking untill it gets to about 5000rpm, i then drove home making sure i kept the revs up but again as soon as i got home throttled off and it died. it then sat in the garage for about 15mins, i then went out to start it again and it appears to be fine! any ideas to what it might be would be very helpfull! cheers

07-07-09, 01:14 PM	#2
adamw2k2 Guest Posts: n/a	Re: Strange Engine problem Ive had the exact same problem, always after being on a motorway. It seems that if I keep the revs constant for a while, then come off the motorway the bike won't hold the revs and will cut out. Have you tried setting up the TPS? I brought the tool bit required to do this yesterday and will be trying it tonight - i'll let you know if that solves the problem

07-07-09, 01:36 PM	#3
warrenhewitt10 Guest Posts: n/a	Re: Strange Engine problem the mechanic in t7 honda sed to me that that was a problem with sv's sometimes but my friend has a k3 aswell and he was with me on the journey and his was fine! but yes i shall await ur info! cheers

07-07-09, 03:41 PM	#4
punyXpress Member Mega Poster Join Date: Feb 2008 Location: Riding, North Posts: 2,664	Re: Strange Engine problem Fuel starvation? __________________ Was: K2 naked in rapid yellow - gone to a better? place Now: Street Triple R

07-07-09, 04:36 PM	#5
warrenhewitt10 Guest Posts: n/a	Re: Strange Engine problem nope filled it up n had only drove 40 miles

07-07-09, 07:32 PM	#6
Red Herring Member Mega Poster Join Date: Dec 2007 Posts: 2,708	Re: Strange Engine problem My K5 had a similar problem, I replaced the TPS and never had any further issues. Apparently they're not that reliable.

07-07-09, 09:20 PM	#7
warrenhewitt10 Guest Posts: n/a	Re: Strange Engine problem how much was the sensor? is it hard to change? any idea why it seems to fix itself if the bike is switched off for a while?

07-07-09, 09:35 PM	#8
Red Herring Member Mega Poster Join Date: Dec 2007 Posts: 2,708	Re: Strange Engine problem From memory about £30 and it was a simple unbolt and refit job, plus a little setting up time.

07-07-09, 09:37 PM	#9
warrenhewitt10 Guest Posts: n/a	Re: Strange Engine problem not too bad i suppose. im gonna ring the dealership i got it from in the morning and run it by them to see what they think about it n get prices but thanks very much!

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