M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924 
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Post by M-L-C on May 3, 2014 13:19:39 GMT
Had my VFR splutter twice now.
Out of the blue whilst riding it the engine won't rev past 6.5k rpm which just happens to be when the Vtec usually kicks in.
Last time I popped the clutch in and it revved no problem. After a few twists of the throttle, re engaged the clutch and everything was fine.
Any ideas please anyone?
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hornut
Supersport Rider
Posts: 797
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Post by hornut on May 3, 2014 18:47:51 GMT
This might sort the problem out Kev
Hope it helps
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 3, 2014 20:40:35 GMT
This might sort the problem out Kev Hope it helps Just the ticket thanks Steve. Bike still has the issue and a few more dents but I personally feel better. |
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jock
Supersport Rider
Never trust someone who hates cat's...Cats hate Rats and Weasels...you do the math.
Posts: 688
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Post by jock on May 3, 2014 20:51:15 GMT
Steve It is a bike forum and a fellow biker needs some help not feking shitty jokes! There is a linkage between the revemeter and the vtech master control. See the video below. VFR vtech My mate had the same issue it was a a bit of dirt in the cable sleeve. You missed a good ride today. |
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hornut
Supersport Rider
Posts: 797
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Post by hornut on May 3, 2014 21:14:49 GMT
This might sort the problem out Kev Hope it helps Just the ticket thanks Steve. Bike still has the issue and a few more dents but I personally feel better. Yea, sorry about that Kev. Not very helpful especially when it spoil's getting out on the bike. Why I think on mate, any chance I can borough your new Gucci's as you may not be needing them for a while  |
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jock
Supersport Rider
Never trust someone who hates cat's...Cats hate Rats and Weasels...you do the math.
Posts: 688
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Post by jock on May 3, 2014 21:28:44 GMT
Steve, Kev bought you a pair too, I was meant to keep them until Christmas for you...but sure he wont mind. Not my sort of thing but heyho!  |
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hornut
Supersport Rider
Posts: 797
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Post by hornut on May 3, 2014 21:36:42 GMT
Thats a wolf whistle from me. Didnt realise he had bought 2 matching pair. Roll on crimbo
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jock
Supersport Rider
Never trust someone who hates cat's...Cats hate Rats and Weasels...you do the math.
Posts: 688
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Post by jock on May 5, 2014 7:21:52 GMT
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 11, 2014 8:24:40 GMT
Speedo is now faulty. Keeps jumping around and reads zero unless accelerating. HELP
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jock
Supersport Rider
Never trust someone who hates cat's...Cats hate Rats and Weasels...you do the math.
Posts: 688
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Post by jock on May 11, 2014 8:52:21 GMT
Shit now I feel bad for the piss take! Have you posted/trawled vfr forums?
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jock
Supersport Rider
Never trust someone who hates cat's...Cats hate Rats and Weasels...you do the math.
Posts: 688
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Post by jock on May 11, 2014 8:55:15 GMT
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David
Superbike Rider
Bob's Bike
Posts: 3,824
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Post by David on May 11, 2014 9:27:41 GMT
The speedo sensor fits over the engine sprocket bolt, have you had a chain & sprockets fitted recently?  Electrical connections may need checking/cleaning. "Checked all connections back to the speedometer and they all appeared fine but I gave them the once over anyway. Took off the sensor again and cleaned it. Then I put a similar sized nut as the front sprocket into my cordless screw gun, insert it into the white speed sensor socket, let it rip and hey presto, working. Reckon it was one of the connectors but unable to put my finger on which one." |
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 11, 2014 13:42:41 GMT
The speedo sensor fits over the engine sprocket bolt, have you had a chain & sprockets fitted recently? Electrical connections may need checking/cleaning. "Checked all connections back to the speedometer and they all appeared fine but I gave them the once over anyway. Took off the sensor again and cleaned it. Then I put a similar sized nut as the front sprocket into my cordless screw gun, insert it into the white speed sensor socket, let it rip and hey presto, working. Reckon it was one of the connectors but unable to put my finger on which one." Had a new chain and sprockets fitted 2 weeks ago..! Could well be the problem, although the FI light was / is coming on sporadically. Might have to invest in a Haynes Manual and take a look at the sensor. Hopefully I won't do more harm than good...  |
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David
Superbike Rider
Bob's Bike
Posts: 3,824
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Post by David on May 11, 2014 14:09:42 GMT
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David
Superbike Rider
Bob's Bike
Posts: 3,824
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Post by David on May 11, 2014 14:48:03 GMT
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 11, 2014 16:41:07 GMT
Interesting Dave.
Just ordered a Haynes so might try and take the fairing off next weekend and have a look.
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chrism
Chipshop Hero
Posts: 67
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Post by chrism on May 11, 2014 20:36:42 GMT
I had a Honda CBR600FS a couple of years ago and the speedo sensor went on it and that caused the FI warning light to come on, although it did still run ok, not sure if it would cause a VFR to go into a limp home mode that would stop you being able to rev the engine.
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 30, 2014 14:09:25 GMT
Well today I decided I was going to investigate the problem.
Took the left hand fairing off and checked the speed sensor connection. Looked like one of the terminals had that white crap that comes out of old leaky AA batteries so cleaned it up and checked the cable back to the sensor.
Took the sensor off and it looked ok. A little worn but ok. Measured the sensor nut length and the distance to the cam nut. I don't think the sensor nut is long enough to engage!!!
So put it back on anyways cause I've no idea what to do now.
Snapped a few fairing clips putting it back on just to round the day off.
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M-L-C
Supersport Rider
IOM 2015 - Booked/cancelled
Posts: 924
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Post by M-L-C on May 30, 2014 14:30:53 GMT
Then …
In a last desperate act I forced the sensor nut a bit with a screwdriver and it moved down its little shaft and was long enough to engage with the cam nut.
Oh what a glorious moment it was when I straddled the bike and set off to see the speedo working again!!!!!
I'm off to throw one from the wrist followed by beer.
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hornut
Supersport Rider
Posts: 797
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Post by hornut on May 30, 2014 17:58:37 GMT
Desperate, nuts, Little shaft, Long enough to engage. Had to put my cryptic clue crossword head on there to understand what you were on about. Dont worry about it Kev. Some are growers and some are showers.
Anyway, has it sorted out the Vtec issue as well?
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