08-29-2018, 11:08 AM | #61 | |
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Quote:
https://www.lowes.com/pd/Oatey-PVC-T...itting/3880607
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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; 08-29-2018 at 03:18 PM. |
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09-15-2018, 04:17 PM | #62 |
Join Date: Aug 2018
Posts: 158
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Youbsaidbyou experienced an increase in low end power? I ride lots of trails and wouldn't want to lose any, but would like an increase in top end power for sure. i was thinking of putting one of these on my hawk, but id like to keep the air box. What did you do with the crank case breathing tube?
Did it come with all the jets you needed? I want to race this bike, so power is important lol. Right now I'm running the mikuni vm26, the one alot of people suggested. id like to get rid of the butterfly choke though for better fkow atleast. |
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09-15-2018, 04:56 PM | #63 | |
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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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09-15-2018, 07:32 PM | #64 |
Join Date: Aug 2018
Posts: 158
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I've read that a longer intake tract and a smaller throttle hole will increase torque and a short intake and large throttle will increase top end.
Did you notice any lost bottom end? |
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09-15-2018, 11:28 PM | #65 |
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Going from the stock pz30 to the pwk30 gave me more power across the board. Low end was much better.
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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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09-16-2018, 08:33 PM | #66 |
Join Date: Aug 2018
Posts: 158
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are the jets different than mikuni? I found an article you might find interesting jerryhawk. It's some one race tuning a heist, which runs the cg250. They achieved 95 mph.
https://clevelandcyclewerks.com/ccw-land-speed-racing/ |
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09-16-2018, 08:35 PM | #67 |
Join Date: Aug 2018
Posts: 158
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i ordered a 30mm pwk already.
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09-16-2018, 08:53 PM | #68 |
Join Date: Jul 2018
Posts: 212
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I just received my 30mm PWK Keihin carb a few days ago. It came with jets as Jerry noted somewhere earlier in this thread. They do appear to be different than the Mikuni main jets. I don't think they're interchangeable.
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2018 RPS Hawk 250cc Mods so far: 1. Mikuni VM26 Carburetor w/#115 main jet 2. 17T/45T JT sprockets 3. JT 428 X-ring chain 4. Air box mod 5. Hawk Digital Cluster 6. Aftermarket IMS shift lever 7. Performance Aftermarket Exhaust 8. 295mm Nitrogen Gas Monoshock, 20W oil front forks |
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09-16-2018, 09:51 PM | #69 |
Join Date: Aug 2018
Posts: 158
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have you run the pwk yet? is your bike decked or ported? are you going to install a foam air filter?
Let me know what kind of performance increase you get, if any. How long did it take to ship. I'm doing the night shift at my job this week :s |
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09-17-2018, 08:15 AM | #70 | |
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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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09-17-2018, 08:17 AM | #71 |
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Soooo.... you have that rotary tool ready to do a little porting too? Believe me it's worth the time and effort.
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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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09-17-2018, 09:09 AM | #72 | |
Join Date: Jul 2018
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Quote:
I definitely want to do porting in the head but probably won't get to it this year. Initially I want to drop the new carb in so I can get a good comparison to the Mikuni, whether or not the carb alone makes a difference. Tbh though, the fact that the fuel/air mix screw (among other adjustments) are easily accessible was the main reason I went with the Keihin PWK 30 carb.
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2018 RPS Hawk 250cc Mods so far: 1. Mikuni VM26 Carburetor w/#115 main jet 2. 17T/45T JT sprockets 3. JT 428 X-ring chain 4. Air box mod 5. Hawk Digital Cluster 6. Aftermarket IMS shift lever 7. Performance Aftermarket Exhaust 8. 295mm Nitrogen Gas Monoshock, 20W oil front forks |
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01-19-2019, 03:52 PM | #73 |
Join Date: Apr 2018
Posts: 68
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I was looking to get this pumper carb before learning about these carbs
https://www.amazon.com/TC-Motor-Acce.../dp/B01FA7K598 Since I am new to all this its kind of confusing to me. So the power jet carb has a pilot and main jet like normal and on the bottom side also has another jet which is the power jet? So you can leave your main on the lean end on purpose and you swap out power jets to get your carb dialed in? Are the power jets the same kind of jet as your main? Trying to get info from some people who have them or know more about them than me to see which would be best for my hawk. I would be doing a port and polish in the future along with new exhaust and filter but not decking the head. If I am understanding this correctly sounds like the power jet carb might be a better fit for what I am looking to do, and the mix screw is accessible without removing the carb so you can adjust with the bike running. |
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01-21-2019, 10:41 AM | #74 | |
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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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01-21-2019, 11:29 AM | #75 |
Join Date: Apr 2017
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You can also simply order a PWK30 without the power jet as well. It will work to more or less the same degree, though you may need a larger main jet to compensate. 4 strokes don't benefit from a power jet anywhere near as much as a 2 stroke, so you can go without it realistically.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 |
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