Quote:
Originally Posted by jss06c6
Thanks! Looking at the plug seat in the head, it appears to be cut for compression gasket.. the ones you sent in the link look like the ones I removed. Hmmm.. don't want to install the wrong profile..
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Here is a post from
efnfast from 2 years ago with an email from
Marc Haibeck on this very issue....
"This was an e-mail from Marc H."
"For high load operation I recommend a spark plug that is one AC heat range cooler than the OE plug. The best spark plug is the NGK TR7IX. Part number 3690.
It has a tapered seat. All LT5's are machined for both tapered and flat seat plugs. Carefully open the gap to .050"
Best of luck.
Marc"
These are the plugs I am using in the 94, after today's ride, I am very satisfied with them. Although it is mentioned above,
Hib also suggested this "colder" plug in recent posts. I took his suggestion, then found the above post at a later time. Glad I went with this plug....