05-03-2020, 01:13 PM
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Join Date: Aug 2013
Location: Goodyear, Arizona
Posts: 410
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Noticeable improvement
Just got back from a test ride with the new ported and decked head. It does stupid easy rolling wheelies in 1st and just gets the wheel up in 2nd. I did a sped run on the freeway and it got to 71, up from a previous high of 65. I was at about 8k in top and the bike was missing at wot, maybe going up from a 115 main will get me through the miss fire?
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2020 Tao TBR7 9.3:1 PnP head CRF230F exhaust 4 degree advance key 290 degree cam Nibbi PE30 and cone filter Front fork brace |
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05-03-2020, 02:02 PM
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#2 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,042
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Yes, you will need to bump up the main jet size quite a bit after porting the head. I don't know how aggressive your port work is, but I would say at least a 125 to 130 main to start. My Hawk is on a 135 main with the PE30 carb.
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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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05-03-2020, 02:11 PM
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Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,578
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I agree. At least a 125 main. Welcome to da club.
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 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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05-03-2020, 03:17 PM
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#4 | |
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Join Date: Aug 2013
Location: Goodyear, Arizona
Posts: 410
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Quote:
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2020 Tao TBR7 9.3:1 PnP head CRF230F exhaust 4 degree advance key 290 degree cam Nibbi PE30 and cone filter Front fork brace |
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05-03-2020, 06:00 PM
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Join Date: Apr 2019
Posts: 336
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did you find any tutorials or video of this?... for those of us that kinda understand but would like to see if its a feasible for us?
nice work though 
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been around bikes for a while.... honda 72 cb200t, zuki 96?/2002 katana, 12 vstrom,09 vstar, kawi ltd440, 82 zuki Gs1100, Tao Tbr7 all about the Tao MotorsTBR7 http://www.chinariders.net/showthread.php?t=25553 |
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05-04-2020, 10:01 AM
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Join Date: Aug 2013
Location: Goodyear, Arizona
Posts: 410
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Quote:
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2020 Tao TBR7 9.3:1 PnP head CRF230F exhaust 4 degree advance key 290 degree cam Nibbi PE30 and cone filter Front fork brace |
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05-04-2020, 10:22 AM
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Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,578
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Quote:
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 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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05-05-2020, 12:43 PM
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Join Date: Apr 2019
Posts: 336
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Quote:
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this is good thread on it...l
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been around bikes for a while.... honda 72 cb200t, zuki 96?/2002 katana, 12 vstrom,09 vstar, kawi ltd440, 82 zuki Gs1100, Tao Tbr7 all about the Tao MotorsTBR7 http://www.chinariders.net/showthread.php?t=25553 |
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Linear Mode
