Plug Question

[Borderguy]

I have about a dozen BR8ES-11 plugs from a GPR i no longer own. Can i use them on a stock 701 SJ?

 

[tor*p*do]

no, stock head uses HS
the ES will get whacked by the piston as it comes up:smashfreakB:

 

[Borderguy]

Thanks

 

[#ZERO]

Replace the head with an aftermarket type and then you can use them. :biggrin:

 

[Matt_E]

no, stock head uses HS
the ES will get whacked by the piston as it comes up:smashfreakB:

I believe the ES plugs are too long, but not long enough to protrude through the dome into the piston crown.
I might be wrong.

 

[crammit442]

I believe the ES plugs are too long, but not long enough to protrude through the dome into the piston crown.
I might be wrong.

You're correct. Not even close.:biggthumpup:

 

[Matt_E]

From what I remember with an SXR - SJ plug mixup, it even runs, but not very well.

Actually, the motor with the longer-than-required plugs ran a whole lot better than the motor with the shorter-than-required plugs.

 

[D-Roc]

i got a motor from.... a guy and he put the hs plugs in the ada head. i ran it for at least a month until i decided to replace the plugs. it was like finding free hp. duh!

 

[keefer]

Prolly lose a cc or two by putting the short plugs in the AM head. I ran across a guy running short plugs in an AM head the other day, we replaced them with the long reach ES units and he said it ran better.

 

[Freakrider]

ES = extended shaft..... HS= half shaft

 

[D-Roc]

S= spark plug tip br8eg have a smaller tip then the br8es