spark plug gap???

[pulsarmad20]

Hi

if any one can help it would be much appreciated

how big or small should the spark plug gap be??

thanks
sam

 

[gtiroz]

0.9mm is standard (~10.5psi / 0.7bar)

0.8mm is common for low-end uprated (~14.5psi / 1.0bar)

0.7mm is common for higher uprated (~17.5psi / 1.2bar)




and a search for "spark plug gap" reveals: http://www.gtiroc.com/forums/showthread.php?t=19883

 

[PobodY]

I run 0.9 with BCR8ES plugs at 1.0 bar - seems to work for me.

What I discovered is that if you go too small the spark isn't strong enough and your power dies out early... then starts to build again... and then you hit the redline.

 

[pulsarmad20]

thanks for the replies