660 raptor spark plug - Yamaha Raptor Forum
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post #1 of 7 (permalink) Old 03-02-2019, 10:25 PM Thread Starter
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660 raptor spark plug

I have a 660 raptor with a big bore kit which is 686cc same as a stock 700 and I was wondering what spark plug to use do I use the one for a 660 or one that’s for 700 being I have a 700 motor on my 660??
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post #2 of 7 (permalink) Old 03-03-2019, 05:48 AM
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There are alot more differences between the 660 and the 700 than just piston/bore size. Use the 660 plug...

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07' Raptor 700- 11:1, hotcam 3, Pro design intake with K&N, +3 throttle body, Monster big bore duals, MSD with cuervo timing, JOGACA shocks, trail tech VAPOR, GYTR heel guards & bumper & nerfs, .250 aluminum skids, TM case saver, folding anodized levers and shifter, powermadd hand guards

04' raptor 660-Hot rods crank, .5mm overbore, 11:1 wiseco piston, Stage 1 hotcam, Yoshimura slip-on exhaust, K&N filter with outerwears, open lid airbox, Dynojet stage 2 jet kit
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post #3 of 7 (permalink) Old 03-03-2019, 02:31 PM
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Quote:
Originally Posted by 686yama View Post
I have a 660 raptor with a big bore kit which is 686cc same as a stock 700 and I was wondering what spark plug to use do I use the one for a 660 or one that’s for 700 being I have a 700 motor on my 660??
You use the 660 plug. The only reason you would use the 700 plug is if you built a hybrid using the 700 cylinder head.

Dpr8e I think it is if my memory serves.
If you’re running higher compression, switch to the 9.

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post #4 of 7 (permalink) Old 03-03-2019, 03:09 PM Thread Starter
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Ok thanks a lot guys for the info
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post #5 of 7 (permalink) Old 03-03-2019, 03:42 PM
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You don't have a Raptor 700 engine in your Raptor... you have a Raptor 660 engine bored out to 686. Other than displacement you have very little else in common with the 700.

'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo

Last edited by QuadManiac; 03-03-2019 at 03:44 PM.
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post #6 of 7 (permalink) Old 05-22-2019, 11:30 AM
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Originally Posted by t web2007 View Post
You use the 660 plug. The only reason you would use the 700 plug is if you built a hybrid using the 700 cylinder head.

Dpr8e I think it is if my memory serves.
If you’re running higher compression, switch to the 9.
I always run iridium plugs because they seem to run better. NGK (6684) BPR8EIX Iridium IX
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post #7 of 7 (permalink) Old 05-28-2019, 12:06 AM
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I've run a stock plug, unchanged or re-gapped, for 12 years with zero issues.

'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo
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