Misfire - K5. - SV650.org

24-09-11, 12:35 PM

Hi Motorcycle lovers

Need some help. A couple of weeks ago my k5 SV650s developed a fault. At riding temp around 80degrees it misfires I have just had it on a dyno for a diagnostics check and it has come up with no fault. The thought is it could be a Crank Position Sensor as the place have had a motorcycle (not an sv) in with the same problem and it turned out to be the C.P.S. I have checked the ht leads, spark plugs, vacuum hoses and all the connections. Has any one had the same problem with their SV.

stormingjoe · 24-09-11, 12:44 PM

Mine did this and surged as well

, replaced plugs with Iridiums which solved it

, not to say it will on yours though

.

24-09-11, 12:50 PM

I have changed the plugs however not for iridiums, was thinking of changing to iridiums so I shall give them ago.
Cheers for the suggestion Stormingjoe

26-09-11, 11:35 AM

Both my Sv's did this at some point. I fiddled around with the air box and mountings to the carbs and throttle bodies which seemed to fix it for me?
Not sure if this will help

DJ123 · 26-09-11, 05:02 PM

did you gap the new plugs to the correct figure?

05-10-11, 05:19 PM

Thanks for all the suggestions and advice, I have sorted the problem.
It was the throttle position sensor.

24-09-11, 12:35 PM	#1
sucati Guest Posts: n/a	Misfire - K5. Hi Motorcycle lovers Need some help. A couple of weeks ago my k5 SV650s developed a fault. At riding temp around 80degrees it misfires I have just had it on a dyno for a diagnostics check and it has come up with no fault. The thought is it could be a Crank Position Sensor as the place have had a motorcycle (not an sv) in with the same problem and it turned out to be the C.P.S. I have checked the ht leads, spark plugs, vacuum hoses and all the connections. Has any one had the same problem with their SV.

24-09-11, 12:44 PM	#2
stormingjoe Member Join Date: Oct 2010 Location: Norf Hampshire Posts: 152	Re: Misfire while riding Mine did this and surged as well, replaced plugs with Iridiums which solved it, not to say it will on yours though.

24-09-11, 12:50 PM	#3
sucati Guest Posts: n/a	Re: Misfire while riding I have changed the plugs however not for iridiums, was thinking of changing to iridiums so I shall give them ago. Cheers for the suggestion Stormingjoe

26-09-11, 11:35 AM	#4
vardypeeps Guest Posts: n/a	Re: Misfire - K5. Both my Sv's did this at some point. I fiddled around with the air box and mountings to the carbs and throttle bodies which seemed to fix it for me? Not sure if this will help

26-09-11, 05:02 PM	#5
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: Misfire - K5. did you gap the new plugs to the correct figure? __________________ BMW F800ST

05-10-11, 05:19 PM	#6
sucati Guest Posts: n/a	Re: Misfire - K5. Thanks for all the suggestions and advice, I have sorted the problem. It was the throttle position sensor.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Misfire	SvJoy	SV Talk, Tuning & Tweaking	1	07-05-11 11:42 AM
Misfire?	nickodemon	SV Talk, Tuning & Tweaking	1	29-12-09 07:03 PM
Misfire?	Phaelok	Bikes - Talk & Issues	6	01-11-08 08:04 PM
low rev misfire??	ricky	SV Talk, Tuning & Tweaking	6	25-09-08 06:19 PM
MISFIRE	DAX	SV Talk, Tuning & Tweaking	5	18-05-06 10:19 AM