Hey, you guy's with 120R, or 124s&s, or 120HQ, what spark plugs you runnin?
I'm chasin a "ping" and I think I want to go colder? HD don't have a colder one.
Need thoughts and part numbers please.
eighty80.
Hey, you guy's with 120R, or 124s&s, or 120HQ, what spark plugs you runnin?
I'm chasin a "ping" and I think I want to go colder? HD don't have a colder one.
Need thoughts and part numbers please.
eighty80.
Harley does have a colder plug its a 10R12. Also you can use NGK DCPR7E (I think I have the right number) as well as a colder plug.
You also should check your plug gap. No more than .40 gap. A better gap is .35-.38 if the gap is too wide its possible to get have a weaker spark for the compression.
You should also do a data run to record when your hearing the spark ping to pull some timing out in that rpm/throttle area
Tom
Overcoming Adversity is the path to better ideas!!
2008 Roadglide w/ MOTOR TRIKE Kit
S&S 124" Headwork & Custom designed cams by John
Custom made right side shifter (Lost my left leg above the knee due to a hit n run driver) SOOS's custom made floorboard spacer
Thank-you!! That's the info I was looking for.
I wish I knew HOW to pull the timing out??
I have never did a data run or even hooked up to a computer.
Thank's again. George.
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Red Ultra Powered By Head-Quarters 120, Easy Clutch Pull By ClutchWIZ. 2012 GL1800 Hannigan. I've yet to ride a stock Harley which wasn't in need of a mechanical intervention.