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Old 04-21-2010, 02:54 PM
meowy84 meowy84 is offline
Motorized Bicycle Elite Member
Join Date: Jul 2009
Location: Canada
Posts: 238
Default Re: What spark plug for my 80/66cc engine?

Venice mentioned using either the B5HS or a B6HS plug. What's the difference between the two? I assume the 5 or 6 refers to the heat range? Since I'll mostly be running my bike in the city I'll be running at at low to mid-range speed rather than all out. So which plug would be recommended for that type of riding?
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