• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

80 1100ex stumble

  • Thread starter Thread starter cl4yd0h
  • Start date Start date
C

cl4yd0h

Guest
I have just rebuilt the top end of my 1100ex and am experiencing a strong hesitation at 3k rpm at about 1/4 opening. It is a fight to get over the trouble spot but once it does it takes off as it should and idles good. Its bad enough if you hold the throttle at this trouble spot the bike will die.

Rebuilt with 1133 kit, had the head decked .005, valves lapped, new stem seals, Added V&H 4-1, K&N in stock air box. Compression is 160's.

Carbs were totally overhauled, dipped in berrymans, ultrasonically cleaned, all o rings replaced, floats set, needle and seat replaced, mixture screws/washer/orings replaced and set at 2 1/2, vacuum synced, Dynojet kit, 45 pilots, DJ114 Main (Stage 1), DJ Needles, slides drilled,

A board member here advised me to set mixture screws by adjusting until highest idle but I can't see enough difference to adjust this way.

The number one plug shows rich, others appear normal. Also it should be noted that number 1 doesn't run well on choke (judging by header temp) Its only warm while other 3 are hot, but after turning off choke you can tell it comes alive.

I can't find any abnormalities in this carb,it was cleaned exactly as all the others, and am suspect it may be the reason its stumbling.. or it could be the jetting all together.

A proper riding is a very difficult procedure as it is about 10 degrees and I live on dirt road, which is currently a skating rink. The stumble is occurring on the lift in a heated garage as well as riding it.

Timing is good. I am just looking for some thoughts on the rich plug and heavy stumble. Thanks!
 
Last edited:
Put the clip on the third from the bottom and lose the DJ washer on top.
Make sure the #1 is synchronized to the others.
 
Thanks chef, took your advice and attached a picture of the new arrangement.
Currently there is a teething, sleepy infant in close proximity who is not old enough to appreciate the new 4-1's at midnight so will have to report back In the morning. Hopefully the richer mixture will solve the stumble. Thanks again.

IMG_20150212_000153.jpg
 
Went with your arrangement and ended up at 3 turns out on mixture. Seems much better on the lift.

Won't know for sure until It warms up enough to ride.
 
Back
Top