spark plug ?
 

Almost got that Stihl 25 CC converted thanks to all you guys and parts from Kenneth. One problem still remains, though. The original plug was a NKG BPM 7A. My plan was to replace it w/ the same plug in a resistor version. However, I cannot econically get that plug. Can I go with the 6R version? I know it's a bit hotter, or would I be better off with a 8R?

Also, Do I need a slielded plug wire? If so, is that something that I can make? Where can I get one if needed?

Thanks!

here are a couple pics of the engine. I need to get longer bolts for the mufler. I have not made it to my LHS to get a prop cause my LHS aint very local. about 90 miles away!

http://img.photobucket.com/albums/v2...r/100_1814.jpg

http://img.photobucket.com/albums/v2...r/100_1816.jpg

http://img.photobucket.com/albums/v2...r/100_1813.jpg

RE: spark plug ?
 

Engine looks good.

No you don't need to shield the wire.

The one step colder should be fine.

Enjoy,

Jim

RE: spark plug ?
 

looks good looks good, Ken's mufflers are awesome IMO. We use Bosch in all our Stihl equipment wsr6f fits every two stroke they make. If your use Champion use cjr6y