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Old 02-24-2014, 01:49 AM
Theon Theon is offline
Motorized Bicycle Elite Member
Join Date: Jan 2014
Location: FNQ Australia
Posts: 1,440
Default Re: Small bubbles at spark plug thread

Sean I'm going to send you an old head as well.
I mean with a Dremel, like in the photos, remove any excess thread so that there are no hot spots in the combustion chamber.
Who recommended a 6?
I'd stick to a 7.

Last edited by Theon; 02-24-2014 at 01:56 AM.
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