For Sale - SV's and SV related items For SV's and SV spare parts only. 650 or 1000 No other items Unsanctioned trade ads will be deleted as will spam and chat. |
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08-01-14, 02:06 PM | #1 |
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SV 650 4 degree advance
Bought a couple of SV650 4 degree advance woodruff keys a year or so ago and never fitted them.
Supposed to improve throttle response and add a couple of bhp, I believe JHS knock these out at £25 a pop Haven't got an SV now so up for sale. They fit Curvys and Pointys £12 each inc postage Last edited by hardhat_harry; 08-01-14 at 02:46 PM. |
09-01-14, 09:15 AM | #2 |
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Re: SV 650 4 degree advance
Both keys now sold
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11-01-14, 04:02 AM | #3 |
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Re: SV 650 4 degree advance
what are these keys? never herd of them............ still new to biking
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13-01-14, 12:39 PM | #4 |
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Re: SV 650 4 degree advance
It means the alternator rotor (also ignition signal generator) sits 4 degrees further advanced, it's a stepped Woodruff key, I'm told this is a common tweak in karts. Anyway it gives you a dollop of bottom end, see the red and blue torque traces for a stock (and rather weedy) 1999 SV650:
http://www.johnnyrod.co.uk/dyno.gif |
13-01-14, 12:57 PM | #5 |
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Re: SV 650 4 degree advance
Thanks for the info I wouldnt need that on my 2009 twin spark would I or would it still male a difference?
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13-01-14, 01:00 PM | #6 |
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Re: SV 650 4 degree advance
Dunno to be honest. JHS sell them too ,you could ring them and ask.
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13-01-14, 01:03 PM | #7 |
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Re: SV 650 4 degree advance
Jhs??? Cheers
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13-01-14, 04:24 PM | #8 |
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Re: SV 650 4 degree advance
JHS Racing, they specialise in SV650 minitwins and supertwins amongst other things.
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Bikes I've owned and loved: Bridgestone 90, Honda CB175, Suzuki GT250, Yamaha YZ125, RD350LC x2, RD350YPVS x2 & FZR600, Honda CB900F, Suzuki SV650S K6, 2014 Triumph Street Triple R |
13-01-14, 05:03 PM | #9 |
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Re: SV 650 4 degree advance
Thanks all for your help
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