[rdt]

Waz up guys, I would like to know what spark plug to use in my 50cc BZM motor and also what gap???Thanks....Doug........

 

[PeckerHead]

I would use atleast a NGK B9EGV or B9EG or B9EV and NGK claims that there gaps should be good from the factory. thats their claim on the web site and i dont bother to mess with mine. Others may suggest otherwise. But to each his own.
Mike

 

[OBPR]

i use the Ngk br9eg's, same as Peckerhead I don't bother with the gap, they really are good to go out of the box

 

[RoboCop]

I guess it depends on whether performance matters. The tests we've done both here and across the pond suggest that BZM motors like a tighter than factory gap on both the plug and the coil.

 

[rdt]

OK, what about iridium plugs.So you guys are saying to use a plug with a thin electrode?

Any of these?NGK B9EGV or B9EG or B9EV

 

[OBPR]

the ix's (iridium) are not worth the cost, all i noticed when i tried them is that the bike wanted a small gap,(think it ended up being .012) have no clue why,
i prefer to put a new plug in every time i go to the track (yes i know you can go alot longer on a plug), so picking up 4 packs of br9egs is much more economical then the ix's
thats just me

 

[rdt]

Is that plug (br9egs) a thin electrode type..On my supra I use a Denso(ik24) and it makes a big difference.
I though these bikes had a really weak ignition system so by using a thin electrode spark plug you can help the spark....Doug....

 

[PeckerHead]

yes it has the thin wire electrode. i had problems with the iridiun on my bike but ive seen others use them with no issues. like bill said it probably wanted a smaller gap. but every time i use one of the 3 i mentioned i have no probs at all with leaving the gap alone. plus they are cheaper alot cheaper compared to the iridium.

 

[rdt]

Thank you guys very muchhhhh....Doug...