1/4 choke and it runs sweet
Results 1 to 4 of 4
  1. #1
    Senior Member Omega Man's Avatar
    Join Date
    Jan 2012
    Hi everyone, just thought I'd get an idea on my '94. I choke it to start, it starts and runs no problem. If , when warm, I push the choke in all the way, there is a "bog" that may lead to a stall. This is a little worrisome at intersections.

    If I leave the choke out about 1/4 way, the bike runs fine. I drilled out the plug and did an adjustment and that part is now as good as it gets. The previous owner did change the main jet, but I'm not sure to what as the parts I received with the bike don't let me know for sure. In the parts bag the is a part that seems to be a "splash ring". I don't know if this is an extra or fell out and not re-installed. When I asked the previous owner if he had shimmed the needle he said no.

    The bike runs so well at 1/4 choke, I kinda hate to screw it up. Just thought I'd throw it out there and see what the group thought.

    TIA, Gary
    "It's more fun going fast on a slow bike than going slow on a fast bike" UK

    1994 TW200, 2009 F800GS loaded,

  2. #2
    Senior Member small's's Avatar
    Join Date
    Apr 2011
    Martinsville Indiana
    My 98 is the same way. I put a 116 main in it but didnt shim it yet. Gonna try to do it this weekend and see if that helps.

  3. #3
    Junior Member Scottbenson's Avatar
    Join Date
    Apr 2012
    Hooper Utah
    I would check for an air leak in the carb boot between the carb and the cylinder causing a lean mixture. Running with the carburator enricher knob pulled out 1/4 of the way is probably compensating for the lean mixture. Specificaly look for cracking or a bad o-ring. Failing that, a passage in the carb may be plugged.

    Years ago, I had a Yamaha 80 ATV that had a bad CDI box and it would only run with the throttle enricher pulled out a little. If I pinched the CDI box, the ATV would run great. If I recall, the ATV was about the same year as yours.

  4. Remove Advertisements

  5. #4
    Banned qwerty's Avatar
    Join Date
    Jul 2010
    NW Tennessee
    It's either air/fuel ratio or ignition.

    Fix your carb and any associated dry rot of rubber parts.

Sponosred Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Similar Threads

  1. Will not idle with choke off
    By jksduke in forum Technical Help
    Replies: 7
    Last Post: 02-03-2016, 03:43 PM
  2. carb kit for 1991?? Choke won't choke!
    By manotickmike in forum Technical Help
    Replies: 9
    Last Post: 06-05-2013, 02:55 PM
  3. yamaha tw125 choke
    By Laktix in forum Technical Help
    Replies: 3
    Last Post: 04-04-2013, 10:43 PM
  4. Carb / Choke issues
    By ebikerman in forum Technical Help
    Replies: 6
    Last Post: 02-10-2013, 09:09 PM
  5. Red next to the choke
    By Hymac in forum Technical Help
    Replies: 11
    Last Post: 04-22-2012, 10:11 AM