whats wrong in this cylinder? spark plug pic
Joined: May 2004
Posts: 216
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From: Stroudsburg, PA, 18360
hard to tell from the pic. get a clearer shot of the ceramic. Dont worry about the threads we dont need to see them. From here it looks to be a little dark ( too rich or too cold a plug) is it wet?
Honda-Tech Member
Joined: Mar 2004
Posts: 4,669
Likes: 3
From: Raleigh, NC, USA
Mine have done that from detonation and preignition, although the preignition also shattered the ceramic insulator, while the detonation left it intact. How's your compression and leakdown?
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Joined: Sep 2004
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From: McAllen, Tx, usa
using 1 step colder plugs running 17 degrees at 11.5 psi a/f around 12.0
this is only hapenning in one cylinder
lost about 10 psi compression in it
have cp pistons eagle rods and fully built head
this is only hapenning in one cylinder
lost about 10 psi compression in it
have cp pistons eagle rods and fully built head
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