Well after a bunch of shows and lots of time on the rev limiter my bike starting running like crap, the standard f4i bog had come to the point I couldnt even ride it barely. I figured I'd change the plugs out and see if it ran better. Put in the iridium ngk's that came stock like $17 a pop and my bike runs better than it ever has, world of difference. So ya if you've never done it DO IT!

 

hahahahaha f4i's have like a 100,000 mile warranty from the factory dont they



hey D u need to roll up to stl for the ride of the century with the streetfighterz man its gonna be crazy

 

who buys a new f4i and stunts it out?? All mine have been salvaged and I'm pretty sure that voids the warranty Ya it would be nice to check out that ride, those streetfighter guys are crazy!!

 

can you use any kind of throttle body spray in the thottlebodies, mine are all gumed up and i heard that the carb cleaners eat away at the fuel system.

 

ya my bike totally died.. one day i was riding it and that night me and my buddies had a few ****tails and i decided to do some donuts on my newly bought f4.. so i fell and one of my buddies rode it inside.. the next day the bike dindt start.. i started to do ohm readings.. i bought a book to test all the wires.. i was bidding on a **** load of things on ebay... one of my buddies suggested i clean the plugs.. so i did and it started right up...

 

+1!!!

I know it might be excessive, but I replace plugs at the begining of each year. Its a pain in the *** and as D said, expensive, but well worth it. Thats one thing that i never have to worry about then!!

 

i ended up paying like 37 for my 4

 

**** i change mine every 3 monthes like clock work.

 

I thought everyone knew about that? First thing I did when I bought my F4i was put in those spark plugs. I've ran them in my 929 and F4i and have NEVER had any problems with my spark plugs. Even when my bike tipped upside down and every cylinder was filled with oil I just cleaned up the spark plugs a bit and they still ran. With the NGK spark plugs, stock air filter, and an M4 Slip-On, even up here at a Mile High I have almost zero bog on the low end... you seriously can't hardly feel it and I have a -1/+10 setup.

 

Good lookin out for other riders D.

I Didn't know there was any sportsmanship left in stunt riding.

 

the 2 dolla special knock off plugs at napa work great too! my **** fowld out a few months ago and the napa's seem to be a good quick fix!

 

^^^ Regular NGK's arent that expensive.. and thats what honda uses from the factory.

 

dont argue with me

 

^^ not directed to you.. that was about crazy dan's post.

 

the only reason you have to change plugs is because you are constantly bogging that pos down...get off the idle and feed her some revs you pus!!!

 

Yep, I always run the stock replacement plugs. Definetley a good idea despite the price

 

ohhhh snap

 

Are the iridiums the stock plugs because my bike had them in it when I bought it used.

 

yep.. part number is IMR9A-9H

 

Be careful though, b/c you are not supposed to use any sort of solvent or gas to clean the tips of these plugs. Also, they come pre-gapped. Some people don't know that, which is surprising, but you do not have to gap these plugs.