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#1 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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Jay's Hawk mods, including plug and play exhaust!
Yes folks you read that right, Pro Tork makes a CRF performance exhaust system that's fully compatible with the Hawk. The exhaust manifold flange is slotted to fit both bikes. There's a half inch of clearance for the airbox and more room above the clutch arm. It fits in the frame perfectly and the muffler bolts right on. You can literally install the system in 5 minutes without any modification. And the short fat can has a sharp snappy sound, nothing like the "other" performance pipe sounds. And it's the same price.
![]() We also installed another stock cluster and slightly better halogen headlight, greased the rear axle bearings, and installed a "new" chain (more about the chain later ![]() Then we shortened the brake pedal 1.25" so Jay's dainty little feet can reach it while standing on the pegs. 😅 Wasn't the best fab work I've ever done, but considering I was sitting in a wheelchair wearing shorts out on the porch, and it was so cold out I was shivering, I think it came out pretty good. And I got good penetration, alot better than the 2 factory tack welds that snapped right off when he laid it down. We also discovered his footpegs are wider and have bigger teeth than the previous years. 🤔 A much needed improvement. More to come tomorrow.. ![]()
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~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 Last edited by OneLeggedRider; 10-30-2019 at 01:56 AM. |
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#2 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,593
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Came out nice.
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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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#3 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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Thanks Jerry! And yes, I couldn't believe the amount of clearance around the airbox and clutch arm, it's truly made for a Hawk. Here's the link.
https://www.amazon.com/Full-Slip-Exh...7&sr=8-1-fkmr1
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~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 |
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#4 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,593
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I already had that on my wish list and just the header pipe. https://www.amazon.com/dp/B07CM45V1H...v_ov_lig_dp_it
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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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#6 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,065
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Now get some header wrap around that head pipe near the cylinder and carburetor. Your leg will thank me later.
The exhaust I fitted to my bike actually required zero MC Hammer modifications as well, but did require slotting the header flange, which I honestly don't mind. I only hacked my airbox because I planned on a pod filter from the start and wanted a place to mount electronic stuff.
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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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#7 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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Sorry Dan, not a fan of header wrap, we burn our legs like men!
![]() Tuning for the new exhaust now, think we got it right with a 25 pilot, 1.5 turns on the screw, needle clip middle position, and a 110 main. That's our first attempt and Jay says it's running amazingly well. The idle certainly is steady now, actually had to adjust it down within minutes of the easy start. He's taking it for a longer test ride now. It's stupid how easy the Mikuni clone is to tune. Here's my $7 "stash" baggie. ![]()
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~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 Last edited by OneLeggedRider; 10-30-2019 at 01:56 AM. |
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#8 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,065
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Quote:
As far as the leg burning... it also helps reduce radiant heat soaking the carb bowl and heating up the cylinder when sitting still or at low speeds. That's my excuse at least lol. If you look under my titanium header wrap you will find a part of my right pant leg. ![]()
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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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#9 | |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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Quote:
Jay just brought it back to eat an Italian sandwich before heading back out and claims it runs as good as my Hawk. No lag, no popping on deceleration, and starts and idles beautifully. I'm gonna have him pull the plug when he gets back this time. Not as good as an actual "plug reading", but it will clue me in to where we're at. 🙂
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~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 |
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#10 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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IE exhaust wrap.
The pipe has always been an accurate diagnostic tool for me. Even on my 400cc Scrambler I removed the plastic cover. The expansion chamber is 2" from my leg and it will burn the s#it out of you, but to me it's way more accurate than a temp gauge, especially on a 2 smoke. As long as you're flying the temp on the Scrambler is never an issue, but being a full on race bike it doesn't fair well on organized trail rides where you have 75 people starting and stopping at 3mph. Have to blast ahead of them and shut it down so the bike has time to cool in between.
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~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 |
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#11 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,065
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There is a reason the Fakuni clones were a popular "upgrade" over the stock carb. If somebody offered a pumper version of it I would call that the perfect upgrade.
__________________
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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#12 | |
Join Date: Mar 2018
Posts: 7
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Quote:
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#13 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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True story, as I was welding/grinding the brake pedal I noticed Jay was holding my long hair out of the way, awwe that's so sweet (actually I was thinking Stranger Danger! ) 😅
After his 2nd test ride he came back grinning and said the tune was perfect. I wanted to raise the needle 1 notch but he said if it's not broke don't fix it 🤷 . And ofcourse I had him take my Hawk out for a short spin after so he could compare his to a "real" bike 😉. Another funny bit, Jay and I are both so blind we couldn't read the pilot jet sizes, thank goodness I had the younger girlfriend here today. She had to carry them outside individually to read them and then we were able to place them in order. ![]()
__________________
~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 |
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#14 |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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Wow, I had to empty my pic file because it was full, didn't realize it would take pics off of all of my posts.. guess I should have started at the back so my recent posts would still have pics.
__________________
~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400 |
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#15 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,593
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I made that mistake once too. Didn't realize it removed it from the post.
__________________
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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