Carburetor Jet Tuning - Updates on 1st Post

[roboto65]

You are correct I would stay with the 102s maybe the 105s but since you have less oxygen up there you need to have less fuel or you will be too rich. Might try a K&N to get as much air as possible...

[L J VFR]

Where are you located at exactly in the ozark mountains in arkansas. I live in Lowell.  We are not too far from eachother!!   I would put in the 105's and run it.  PM me and let me know where you are at and maybe we can get together and maybe do some riding,  look at eachothers bikes...  do some riding.. etc.

[L J VFR]

I also have 3 total shims installed. 1 factory and 2 extra from dave dodge.  Works great. However, I do have my resonators cut off.  But I feel I am spot on with carburation.  k/n filter, muffler mod,  105 main jets,  3 total shims per needle, and 3 turns out from light seat on pilot screws..  Got 50 mpg on a 80 mile jaunt last week.  And the bike runs really strong with no hesitation, and no decel pop..   I would recommend this set-up to anyone that does not have aftermarket exhaust..  Thanks to all my friends at MOOT for helping me get my set-up right!!

[TLRam1]

You will have to be up more than 1000 feet higher elevation then we are to make a difference. Allen you missed it, he will be putting in a K & N.

[doc.jet67]

Thanks for the help, I went ahead and ordered the 105's last night and will let you know how it runs as soon as the jets get here.  By the way, looks like I'll have a brand new, still in the package, set of 110's if anyone is interested.  That's what lack of patients will get you.

[doc.jet67]

Well my Matco D tool came in today so I decided to check my air/fuel settings and did I get a surprise.  I had one carb that was 1 1/4 turns out, one at 1 1/2 turns out, one at 2 turns out and one at 2 1/4 turns out.  I'm surprised it would run at all.  I guess this is a perfect example of why you should give a newly purchased bike a thorough checking to make sure everything is up to par.  I can hardly wait for the 105's to get here so I can put it back together and see how much better it runs.

[TLRam1]

Does anyone have 108 Main Jets?

If you need side cover grommets to keep your side covers in place before the new riding season begins for many people.

Below is the part number.

Side Cover Grommet Magna 94-03

PN:  83551-300-000

You need a total of 4, 2 for each side, cost around 3 dollars each. They are inexpensive, easy to replace and makes you feel good when you are done!

[KTC]

Here is my, Kelly Cothern, set up:

Filter:  K&N
Mains: 105
Pilots:  40
Pilot screws 3 ¼ turns
Shims: one
Exhaust: Cobra

will need to do more riding to check gas mileage, etc. last ride was 143 miles, pulled plugs and they are mostly white. pipes are clean no black soot. I think it will benefit from .42 pilot jets.  will post again if any changes are made.

[Greg Cothern]

His plugs looked a tad on the lean side, not bad though.  The temps immediately after the change were a bit on the cooler side thus increasing the lean condition a bit with the cooler dense air.

However I do believe the 42's will be a good addition.

I am about to put a set of the 42's in my Project 96 as I just cant get the decel popping to subside, so a larger idle jet is in order.  Remember you want some very minor decel pop or else your too rich on the idle jets.

[TLRam1]

Kelly,

Is that "1 total shim" or 1 additional making it "2 total shims"?

What's the best deal anyone has found on #42 Pilots or Main Jets, have to figure shipping into this also?

[Greg Cothern]

I just ordered some from HDLParts.com $45.96 for the 4 jets and I would have to figure shipping since I ordered other things with them....

[KTC]

that was adding one "additional" shim over stock.

[TLRam1]

I could have stuck mine with yours to reduce shipping. If we get a few people we can order together and spread shipping out. I'm impatient and may not be able to wait for others. 

[TLRam1]

that was adding one "additional" shim over stock.

Got it! Thanks

[TLRam1]

Kelly, I have you down for Cobra Slash Cuts, correct?

Also, Lawrence, are yours Slash Cuts also?