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Power loss and very twitchy throttle

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P.
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 10:58 - 02 Aug 2011    Post subject: Power loss and very twitchy throttle Reply with quote

Odd one... rode in to work today with the bike appearing to be having a bad day.

Got about 5 miles in and was cruising at around 65 in 6th, twisted the throttle and absolutely nothing happened Laughing Then about 2 seconds later a massive hit of power.

After that its been VERY twitchy, I can open it up with a fistful and it will rev up then stall at a given rpm then rev up another 1k or 2..then stick there for a split second.

Tried downshifting incase it was a gear issue, but same problem. Pulling away is full of the lols Laughing I did get an FI error when I rode home from the BCF BBQ, but it went away (I say that, the LED hasn't come back on)

Anything to have a look at? I started up perfect, revved clean until it got warm, I say warm... until about 80 degrees and I had spanked it up to 65/70 in the country lanes..
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P.
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 16:23 - 06 Aug 2011    Post subject: Reply with quote

It seems to have sorted itself... Its possibly the loose wire I found near the fuel tank... its like its pinched and ripped. Its right near one of the middle injectors.. just took tank off, soldered more wire to it and wrapped it up with that weird tape that sticks itself to itself Laughing
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Redoko
World Chat Champion



Joined: 04 Nov 2009
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PostPosted: 16:27 - 06 Aug 2011    Post subject: Reply with quote

Fcuk me Paddy how many problems have you had with that bike?

Laughing
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Sudika Sportsman SK50QT > Gilera DNA50 > Honda CBR125 RW7 > Kawasaki Zephyr750 > Suzuki GSXR600 > Honda Hornet CB600F '51
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P.
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 16:40 - 06 Aug 2011    Post subject: Reply with quote

Doesn't really matter how many... its how big a job they are Laughing

This one wasnt too bad.. although the weird oil burning smell is worrying me..
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Drake
World Chat Champion



Joined: 01 Oct 2010
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PostPosted: 17:36 - 06 Aug 2011    Post subject: Reply with quote

##Paddy## wrote:
wrapped it up with that weird tape that sticks itself to itself Laughing


self amalgumating tape?
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was: derbi senda, aprilia sx125, nsr250 mc16, cagiva mito, cb600 hornet now: mk1 bandit, KR1S, landrover series 3 light weight 2.5 petrol, 5speed box
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Fizzer Thou
World Chat Champion



Joined: 06 Aug 2011
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PostPosted: 17:48 - 06 Aug 2011    Post subject: Reply with quote

Sounds like plug cap resistors.Or does the bike have coil-in-the-caps?
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Phoenix
Twisted Firestarter



Joined: 01 Aug 2002
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PostPosted: 19:39 - 06 Aug 2011    Post subject: Reply with quote

Could be something to do with throttle position sensor?
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