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Spark plug heat range

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theblackorder
Squiddy
Squiddy

Posts : 10

Spark plug heat range

Post by theblackorder on Wed 15 Aug 2018, 2:41 pm

I wonder if I should go with NGK CR8EH-9 (standard) or CR9EH-9 as Haynes suggests for "extended high speed riding". Also I plan to change the stock air filter for high flow one, which should rise the temperature in the combustion chamber. Any ideas?
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eternally_troubled
Admin
Admin

Awesome!
Posts : 3948
Location : 'ere be fens. (near Cambridge)

Re: Spark plug heat range

Post by eternally_troubled on Wed 15 Aug 2018, 7:59 pm

I've always used the standard ones and never had a problem, both with the normal paper filter and a K&N.

By all means try the other heat range - it will be interesting to see what happens Smile
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burudis
Crotch Rocketuer
Crotch Rocketuer

Posts : 39
Location : Torroto

Re: Spark plug heat range

Post by burudis on Wed 15 Aug 2018, 9:14 pm

high flow sprint filter in poliester.
dont need washing.only with air pressure
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Jameshambleton
Moderator
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Posts : 2806
Location : Bedale, North Yorkshire

Re: Spark plug heat range

Post by Jameshambleton on Wed 15 Aug 2018, 10:20 pm

^ no idea what that means

I use cr9eh9's

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Re: Spark plug heat range

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