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Message started by Ooh_S40_Shiney on 10/30/05 at 01:00:53

Title: Newbie with questions
Post by Ooh_S40_Shiney on 10/30/05 at 01:00:53

Hi everyone,
I'm new to this site, and in fact I'm new to motorcycling. I took the MSF in June and bought my 2005 S40 the same week - I'm hooked ! ;D

I've owned the bike ~ 5 months and put ~7k miles already!

I'm looking to give the bike some real bite. I've purchased a H-D Screamin' Eagle exhaust and a performance Mikuni kit w/K&N from Lancer on E-Bay.
I've heard nightmares about carb tuning, so my question is this:
Could anyone with this carb/similar exhaust give me insight how you have it jetted ? Pilot? Needle? Jet Needle? Main? I would love to start where others have already found success rather than start from scratch. I've searched this forum for hours, but can't find the right info. :-/

I will install the carb/intake/exhaust at one time so I won't have to keep re-jetting as I add... Any help is greatly appreciated.

One more thing - this site rocks, and you guys are awesome, I've learned tons by reading the past topics! Keep posting and we'll keep growing...

Title: Re: Newbie with questions
Post by jbrough7 on 10/30/05 at 02:16:51

One thing you definitely know - there are guys and gals on this site that know a ton and then there are people like me!

Title: Re: Newbie with questions
Post by Greg_650 on 10/30/05 at 05:36:56

Buy a service manual and check the Technical Corner.

Title: Re: Newbie with questions
Post by Hammy211 on 10/31/05 at 03:12:37

Make sure you set the search back more than 7 days and you should be able to find plenty. I don't know why they have it set up like that. I'd probably go with a 155 main, shave the white spacer a little less than half, and up your pilot a size or two. Adjust idle mixture as needed. Make sure to replace those screws with stainless allens while you have them apart.

BTW, I have a similar if not exactly the same setup. 157.5 in now but I think it is to much. I have never got around to changing my pilot and it really runs fine. Just some occasional backfires when I come off very light throttle makes me think it could be bigger. That opposed to the stock setup where I would get frequent large back fires rolling off hard throttle.

Good luck and get that service manual as suggested.

Title: Re: Newbie with questions
Post by Reelthing on 10/31/05 at 08:25:04

Lancers kit is a different model carb than the stock Mikuni s40 these jet recomendations are for. I would think he has a recomended starting place.

The best way is going to take plug/chop/read method, and several cheap spark plugs - like a 6 pack of the Champions.

Title: Re: Newbie with questions
Post by Savage_Rob on 10/31/05 at 08:57:05

Reelthing wrote:

Ahh, I missed the fact that he bought a different carb. That said, I removed my previous post.

Title: Re: Newbie with questions
Post by Hammy211 on 10/31/05 at 13:04:22

No fair, remove mine to. Good luck with that carb. Everyone who has one says they are great, but that's not a lot of people.