anybody know know how to tell if a ngk b7hs spark plug is a non-resistor plug or a resistor plug . just jump right in ??? larry ca
while i did put "bicycle" in "vehicle type" & included a link to MBc, it seems they need to know more...but he did give a bit of helpful info.-----Original Message-----
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Engine Type: single cylinder 2-stroke
Comments: hi, i moderate a forum called www.motoredbikes.com and we have
a coupla questions if you don't mind trying to help.
we use 2-stroke engines manufactured in china. 48cc and 70cc for the
2 aftermarket plugs that we use are the b6hs and the b7hs, but we don't
know *why* we use them, it was suggested is all.
could you recommend a suitable non-resistor spark plug? also, what gap
should we be using?
thanks very much.
Both the B6HS and B7HS are non resistor spark plugs. There is a heat
range difference between these two plugs, 6 is hotter and 7 is cooler.
The engine manufacturers will specify the correct plug to use based on
their engineering findings. This will also determine what gap to set
the spark plugs to. For more information and details, I would need to
know more about the machines the spark plugs are used in. Thank you.
Technical Support Representative
NGK Spark Plugs (U.S.A.), INC.