witch spark plug????

[BigBOOY]

OK,,i tried searching the forum for an a answer and couldn't find anything....I just wanna know witch spark plug would be best for my 30.5cc motor???...A "TORCH CMR7H" is in it right now..

THANKS

 

[LOST IN MN]

http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.1381/.f

 

[Bigger the Better]

Yup, NGK CMR7H is one of the more popular ones. There is a Champion plug that crosses but not as popular unless it comes stock. The TORCH one is a clone of the NGK from China.

 

[BigBOOY]

So what's with these ngk plugs i've seen being used??
"NGK 3066" "NGK CR7HIX"

 

[LOST IN MN]

So what's with these ngk plugs i've seen being used??
"NGK 3066" "NGK CR7HIX"

Differnt Temps and different types of electrodes. IE iridium or platinum. Stick with the plug type that you had originally and you will be fine.

 

[Bigger the Better]

I can't answer the whole Iridium plug thing. I have only used NGK plugs and one Champion plug. They last forever. I have a box of them from when I bought my 1st since I thought they would foul out or get broke.
The Iridium and others stick up higher on some models making breakage allot more common.