My TTR125 story

Discussion in 'Pit Bikes & Mini's' started by smatta4u, Apr 16, 2012.



  1. smatta4u

    smatta4u Rookie DRN Member

    Joined:
    Feb 11, 2002
    Messages:
    27
    Likes Received:
    0
    Trophy Points:
    0
    2004 TTR125 with the same issues as most people, cold-blooded, hard starting, won't idle, etc. So I read the forums and step by step worked my way towards a solution and this is what finally worked for me. A jet kit from Procycle - use the #110 main and the #20 pilot. Three turns out on the pilot air/fuel screw. Cut the top out of the airbox. Cold starting twist the throttle a couple of times before you kick, leave the choke on for a few seconds after it fires up. Totally different bike now. Starts with one kick, idles and throttle response is crisp. Thanks to everyone who posted good information here and I hope my setup will help someone else.

  2. _JOE_

    _JOE_ Subscriber

    Joined:
    May 10, 2007
    Messages:
    4,708
    Likes Received:
    1
    Trophy Points:
    36
    The pilot jet and f/s adjustment are what the carb needs to allow easier starting. Twisting the throttle doesn't do anything because there is no accelerator to squirt a prime charge into the cylinder. Opening the airbox and enlarging the main jet really helps mid/top. Ours likes to be run out of fuel before sitting. If I leave the fuel on and let it sit more than a week it's a bear to start. Not to mention the crap gas leaves goo in the bowl. If I shut the petcock off and run it out of fuel before I park it it always starts in one or two kicks.
Similar Threads: TTR125 story
Forum Title Date
Pit Bikes & Mini's 09 TTR125L not getting gas Feb 14, 2011
Pit Bikes & Mini's 08 ttr125l only runs great on Reserve Jan 31, 2010
Pit Bikes & Mini's TTR125 won't turn over Nov 23, 2009
Pit Bikes & Mini's Mx Ttr125le Apr 23, 2009
Pit Bikes & Mini's ttr125 bottoming out May 26, 2008

Share This Page