Will runing rich hurt anyhting?

[2001300exguy]

i justy went from a full prociruit to a stock silncer and the pro head pipe. i didnt rejet and if i can would realy like to avoid it since im going to be going back to another after market pipe soon hopefully. will this hurt anything or am i just going to loose out on some power. i also have an aluminum air box and a k&n, high comp piston 406 and a portand polish.
thanks

[chucked]

You could foul plugs, or the cylinders could wash with gas, which in-turn pulls oil into the combustion chamber, this will wear out the rings quick. This happened to me when I put a quiet core in my 400

[wilkin250r]

Don't you realize it's a little more complicated than simply unscrewing and rescrewing a few bolts? If you're afraid of doing work, why are you messing around with modifications at all, even a pipe?

[chucked]

Originally posted by wilkin250r
Don't you realize it's a little more complicated than simply unscrewing and rescrewing a few bolts? If you're afraid of doing work, why are you messing around with modifications at all, even a pipe?

I think he wants to be quiet over the summer, thats what i did, but i rejetted, just for the summer.

[2001300exguy]

im using it just for this weekend till i can order a different pipe. i realise it is that simple i did it on my 300 but i dont have the jet and the dealer is almost an hour away

[bwamos]

Were you running airbox lid on with your aftermarket pipe?

If so take it off for you stock pipe. Should lean it up.

It will get you a lot closer to where you need to be. May be good enough for the weekend.

And, yea, running way too rich will cause a lot of carbon buildup, not to mention lots of other things as mentioned above.

[2001300exguy]

i got the aluminum airbox that has a lid on it would taking that off make any difference

[bwamos]

As long as the lid wasn't punched out and it is sucking air through the snorkle tubes like the stock box does.. yea it will lean it up a lot.

Basically (1) 2-1/2" hole (caurberator) has a lot more airflow than the (2) 1" holes for the snorkle.

The snorkle is you're bottleneck in the front end. Thats why having the lid off requires a lot larger jets.

[2001300exguy]

i took the lid off and it runs almost perfect. im going to do a plug check later

[400exrules]

around the inside of the little end cap on my hmf pipe, has black stuff on it, not a thick buildup but i cleaned it, and it didnt take much ridin to get it back on their. Its not completely covered, u can still see some of the metal tho. Is my jetting too rich? THe guy i bought it from said it might backfire sometimes on deceleration but it hasnt done it to me yet.
Should i take the lid off?

[2001400exrider]

my HMF pops a bit on DECELL but i think its just the sound of the HMF..

[400exrules]

Originally posted by 2001400exrider
my HMF pops a bit on DECELL but i think its just the sound of the HMF..

could be, i would just like to say that i love HMF by the way

ehhh I love the sound of that HMF at a low rpm putt dont you? lol:devil:

[2001300exguy]

im going to be getting an hmf soon, the stock pipe is just a temp fix