04-10-2019, 09:16 AM | #1 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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sputter at full throttle
hello, as some of you know, i am a total noob! I got my first bike (hawk) about a 3-4 weeks ago. When temps for 15-35 degrees. 40 pilot 110 main jet. Now that it is 45-70 degrees here in Ohio.. I think that my main jet is running too rich because it will sputter / bog down at full throttle. Once in a while it will sputter at 1/2 throttle, rarely. what is the best method to diagnose what circuit / jet is running rich or lean?
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04-10-2019, 09:24 AM | #2 |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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Full throttle will be the main jet. If it ran fine with the cold weather then it must be running rich. Drop down to a 105. Are you still running the stock exhaust with the cat?
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04-10-2019, 09:25 AM | #3 |
Join Date: Aug 2018
Location: Ohio
Posts: 131
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If you are at full throttle and are having problems, then your main jet needs to be adjusted. I'll try to find a picture that tells you what each jest does, but this article could help too.
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Hawk 250 Lithium Battery, Mikuni Carb 110 main jet, Bark Busters with Mirrors, Extended Mixture Screw, 428 O-ring Chain, 17-15/40 sprockets, Digital Cluster, Cycra YZ250F Skid Plate, Oil Cooler |
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04-10-2019, 09:27 AM | #4 |
Join Date: Aug 2018
Location: Ohio
Posts: 131
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I found the picture!
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Hawk 250 Lithium Battery, Mikuni Carb 110 main jet, Bark Busters with Mirrors, Extended Mixture Screw, 428 O-ring Chain, 17-15/40 sprockets, Digital Cluster, Cycra YZ250F Skid Plate, Oil Cooler |
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04-10-2019, 10:15 AM | #5 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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thanks fellas! i went on a morning ride, no issues with it being 45 degrees. if it does this again next 70 degree day, ill know where to look. I appreciate the fast responses!
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