Jetting help needed

[Ian400ex]

Alright, I've got a UNI air filter in my bike as we speak and I plan on getting a new exhaust; I think I'm going to go with a Lexx (http://tinyurl.com/lexxslipon400) due to the positive reviews I've read about it and the lower price.

Anyways, now that you know what I have and what I want, how should I jet it with the new exhaust and the current air filter.

+ Shouldn't I stay with Keihin?

All the bikes I've grown up on never got modded because they were my dads and I never had money :)

[bkelley]

Definitely stay with Keihin. I had nothing but trouble when I tried DynoJet and in the end I just went back to good old Keihin jets. As for the jetting, if you're just doing filter and exhaust, go with a 150 or 152 main, 42 pilot, needled in the middle and 2 1/4 turns on the f/a screw to start.

[Ian400ex]

Thank you!

Difference in 150 and 152?

[honda400ex2003]

150 gets my vote. 3rd needle spot from the top, 3 turns out on the f/a screw and you should be good. that is where i would start out anyway. the 152 is bigger than the 150 since it has a bigger hole in it to let more gas through, i hope that helps to clear it up a bit for you. you should get both though just to be safe. the 152 may be needed but is doubtful. steve

[Ian400ex]

Thanks again, I'll probably get the jets at Jets R Us.

Edit:
OEM STYLE KEIHIN JETS vs GENUINE KEIHIN JETS???

[bkelley]

Genuine.

[Ian400ex]

Alright well, I decided to not order from Jets R Us unless I HAVE to. I wanted to save myself from the shipping; if needed I'll order those I guess (in other wards, I ordered from RMATV).

Here's my order.. and the rocket fuel was for giggles, I don't use it at all

[clemsonteg]

If it makes you feel any better I use the jets from RMATV and they are working well with my quad. And you should have used the coupon code 96639 for 10% off your order.

[clemsonteg]

and whats the motion pro carb tool for? Not sure that will work on the 400 carb, at least not while its still on.

[bkelley]

The knock-off jets will still work fine, you just have to be careful because they are made from imitation brass and can corrode on you.

[Ian400ex]

Originally posted by clemsonteg
and whats the motion pro carb tool for? Not sure that will work on the 400 carb, at least not while its still on.
I'm not sure, didn't wanna need it and not have it.

Only 17 dollars :o


Originally posted by clemsonteg
If it makes you feel any better I use the jets from RMATV and they are working well with my quad. And you should have used the coupon code 96639 for 10% off your order.

Only knew about the 10 dollars off code - 77809

Can you add them up or just one at a time :eek:


Originally posted by bkelley
The knock-off jets will still work fine, you just have to be careful because they are made from imitation brass and can corrode on you.

Uhoh :grr: I saw the good reviews so.

I should be good for now, right? :D

[clemsonteg]

I think you can only use 1 code, but the 10% off would save you $25

[Ian400ex]

Originally posted by clemsonteg
I think you can only use 1 code, but the 10% off would save you $25
Yea I know :( Oh well, I just want my parts lol