Predator 79cc Spark Plug - UPGRADE

[ColdCruiser]

My Predy 79 came with a Torch E4RC spark plug. Some people claim a good plug will make a huge difference in performance. I could use a shorter plug with better performance. Any tips or suggestions?

Here's the list of plugs compatible with the Torch E4RC:

NGK (3322 / BR4HS)
Bosch (WR10AC)
Brisk (NR19)
Daihatsu (99906850P9002)
Denso (IWF16 / W14FR-L / W14FR-U)
Honda (98076-54757)
Motorcraft (AER6)

http://www.sparkplug-crossreference.com/

 

[Bruce Hawkins]

ngk

 

[motormike777]

Anyone have experience with the NGK 4 or 5 for the 79cc pred? What's your altitude/setup and which worked best for you at what ambient temp? I'm getting prepped for a very long road ahead. Thanks.

-Mike

 

[CrazyDan]

Instead of hijacking old threads, how about make your own? Pretty sure you get better answers that way.

 

[Will'smotobikes19]

Ngk BP5hs that's what I got the electrode sticks out slightly longer than stock plug but it doesn't hit the piston.

 

[Zaydrian]

Wats the spark plug gap on a 79cc wit modifacations custom air filter and header