Being new to yamaha's and my bike coming with a mixture of plugs i thought id ask whats the prefered plug for a 3TJ race motor?

I've always used NGK CR10EK for racing running a tuned 80+hp motor at around 80 deg c. I don't recommend iridium plugs, don't give any more power on dyno, flood easy, W**K!

Cheers i've never been a fan of iridium plugs anyway, i dont think im quite pushing 80bhp yet but the CR10's will do nicely thankyou

EDIT: Just realised CR10's were the plugs i used when i had a NC with big plug head, IIRC they came in both single and twin tipped, which ones do you use? or am i thinking of something different

10EK's are twin tip

Yeah, twin tips
I use 9 in a road bike

Thankyou

I've always used standard plugs in mine but it can run a bit hot. I might give the CR10' s a try though.

Remove the sealing ring from the plug :-)"