tr 555

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Jan 14, 2004 | 04:19 PM

besz28

Thread Starter

Registered User

Joined: Jun 2002

Posts: 721

From: hudson,florida

tr 555

hello i got 1 stage cooler spark plugs i think tr 555 or something like that what do these need to be gapped at? thanks

Jan 14, 2004 | 04:37 PM

Fastbird93

Registered User

Joined: Mar 2002

Posts: 4,827

From: Waynesboro, PA

One stage colder would be the NGK TR-6. If you got the NGK TR-55 then you're in the stock heat range. Manual calls for a stock gap of .050 I believe.

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