Lanky Posted November 29, 2003 Report Share Posted November 29, 2003 My RM125 was running rich so I went from a 165 main jet to a 160 main. That took care of most of my problems. But now my bike is bogging a lot at 1/4 throttle. I leaned out my air screw but it still bogs. (This wasnt doing this until after I went to a smaller jet. What should i do? Quote Link to comment Share on other sites More sharing options...
Banchetta Posted November 29, 2003 Report Share Posted November 29, 2003 The main jet shouldn't affect 1/4 throttle..maybe it just ran so bad that you thought it did??? anyway try richening the air screws instead....if that doesn't help, then try moving the needles up or down....if it run like the choke is on, then clears up after a few seconds at wot then lower the needle. If it just hesitates before powerband then you might want to raise the needle and see how that goes...Also make sure your air cleaner is clean.....will make a big difference on low end response.. Quote Link to comment Share on other sites More sharing options...
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