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11-04-2016, 01:49 AM | #1 |
Join Date: Jun 2016
Location: Colorado
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Bashan Blaze cant get past 7000 rpm?
For the first time I took my Blaze onto the main hi way. I opened it up to WOT for a few seconds and I could not get it past 7000 rpm or 55 mph? (gps) At close to 7000 rpm or WOT the engine would start to sputter. If I let off WOT a very small amount it would smooth out. I have 350 miles on the bike. Iam at over 8500 feet and the bike runs fine at all other rpm's. This carb has no air gas mixture screw. Should I adjust the clip on the needle? Iam thinking of getting a new carb with a air gas screw and a new muffler?
For me other then riding the bike this is the fun part. |
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11-04-2016, 07:54 AM | #2 |
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If its like the Hawk you will need to change the main jet out to a larger jet. It's running to lean. My hawk was the same way. It had a 98 and I put a 110 jet. Made a huge difference in top end.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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11-04-2016, 11:45 AM | #3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
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I suspect you'll find a pilot mixture screw on the underside of the carb, right where it meets the intake tube. If you feel the bowl, you'll note that there is a relief that accommodates the screw. It is a bear to get at.
That said, it isn't likely to resolve your issue. As Jerry pointed out, you need a bigger main jet. When it comes to swapping jets, I prefer to also swap to a Mikuni, since finding jets is much easier and cheaper. A new Mikuni can be had for less than $40 shipped. To respond to your other question, moving the clip will affect mid-range, not WOT.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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11-04-2016, 11:49 AM | #4 |
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The Mikuni jets will fit the stock Hawk carburetor. I got them from Amazon. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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11-04-2016, 11:50 AM | #5 | |
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11-04-2016, 11:53 AM | #6 |
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel Last edited by JerryHawk250; 11-04-2016 at 01:38 PM. |
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11-04-2016, 11:54 AM | #7 |
Join Date: Jun 2016
Location: Colorado
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11-04-2016, 10:46 PM | #8 |
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Keihan
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11-05-2016, 08:21 PM | #9 |
Join Date: Mar 2008
Posts: 2,436
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[Main jet]
# system is different http://www.jetsrus.com/FAQs/FAQ_miku...ihin_sizes.htm Different thread pitch: Keihin .8mm vs Mikuni .75mm NEVER try fit any Keihin jet on Mikuni. The carb will destroyed in no time.
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11-05-2016, 10:00 PM | #10 | |
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11-07-2016, 08:04 AM | #11 | |
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Quote:
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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11-05-2016, 09:56 PM | #12 | |
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11-05-2016, 11:26 PM | #13 |
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Even the stock Mikuni main jet is richer than what came on the bike. I think you will notice an improvement right away.
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11-07-2016, 11:27 AM | #14 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
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You're welcome. I've probably installed a dozen 30mm Mikuni carbs, and the results have always been excellent after proper jetting.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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11-04-2016, 10:52 PM | #15 | |
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