What is the NGK plug # for the front head conversion ? And do you have to run that plug or will stock work ?

Short plug and cap part numbers are listed in the 250 Tuning section, on the Ignition Tuning page.

Heat range is 10 or 10.5.

A standard plug can be used, but trimming of the V-piece fairing insert will be required for clearance.

Andy.
NSR-WORLD.COM

Thanks Andy you answered one of my questions, but I see the Honda part #, these plugs are made by NGK, what is their stock # ? So I can find them through my parts distributor.

I cant find the NGK number but i did find a price..... 33 euros... each, from honda! lol

I know this is an old thread but since I was trying to get the part number so I could order some more, I figured I would add to the answer.

The RS250 part number could be correct, but I wanted to double check it against the plugs I have been running all year in my MC28 race bike. The NGK plugs I am using are part # NGK R5300A-105. They are about $22.00 each (much cheaper then the $36.00 RS 250 plugs).

Thanks,
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Charles Gallant

I asked the same q a while back but i think these may be the plugs and caps NGK TRS1225 cap and NGK R6120 10.5 heat plug.My prob was the front cap getting a bashing from the front tyre as standard.Have just ordered some so i will post if they are ok.

Are we saying that there isn't the clearance to run the regular plug and cap with a central front head?
I'm wondering if the 300 has the same clearance?

My race nsr is running the head conversion and the front tyre hits the cap and has worn one side away.My caps are not the original but ngk replacements.They dont look to be that much bigger but thats my prob.

I have the front head conversion on my 28 racer. I run stock plugs (BR9ECM)
without any clearence problems. I did have to modify the fariring.