XCR KDX NJ

There were BR9ES plugs in the sled. The guy I bought it from blew a piston. There was a hole in the piston. Under the hood it says to use Champion plugs. Could the 9ES plugs be incorrect, and it should really take BR8ES?
My indy 650 runs well with 8ES

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1995 XCR 600 (blown crank, dropped in a nice 580)
1991 Indy Sport 440 fan
1989 Indy 400 lc
1988 Indy 650 lc
1988 Indy Trail 488 fan
1980 TX 440 air

zgierach

champion N2C

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1986 Polaris Indy 400
1971 Ski-Doo Olympic - Project
1989 Yamaha Exciter 570

stickshift69

BR9ES... Piston gone is a whole nother issue, check the carbs, fuel, crank seals, check for air leaks too

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zgierach

yeah, the N2C is the Champion equivalent to the BR9ES I believe

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1986 Polaris Indy 400
1971 Ski-Doo Olympic - Project
1989 Yamaha Exciter 570

RJ Gleason

8's in free air and LC engines and 9's in the fans.

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Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Trail Boss; Dryden to Summerhill trail.
http://www.dcdrifters.net/
http://twintiersleddin.proboards76.com/index.cgi
http://www.fingerlakesstone.com/new.html

Junior Warden; F&AM Dryden Lodge# 472