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Old 12-30-2010, 09:53 AM
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Venice Motor Bikes Venice Motor Bikes is offline
Custom Builder / Dealer/Los Angeles
Join Date: Mar 2008
Location: Los Angeles, CA.
Posts: 6,017
Default Re: Sparkplugs Need Help! ASAP

Personally, I would run the B6HS in the summer & the B5HS in the winter. A #7 plug might work well for hard riding on those 120 degree days though.
The theory behind choosing the right plug is having a plug that is just hot enough so that it can burn off any gas or oil that sticks to it without being so hot that it causes preignition in the cylinder, (igniting the fuel/air charge before the spark does.)
On the other side of the coin, if the plug's too cold it will foul out with gas & oil.
I hope this helps.
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Last edited by Venice Motor Bikes; 12-30-2010 at 09:55 AM.
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