01-29-2018, 10:28 AM | #301 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Engine work, ported and polished head, inspect clutch, cleaned centrifugal oil filter and last but not least will plane head and lap valves.
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01-29-2018, 10:47 AM | #302 |
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Nice job on the port work. Just curious, how many miles you have on it? How much you take off the head?
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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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01-29-2018, 11:22 AM | #303 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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I've got approx 4500 miles on it. I'm just going to make sure the head isn't warped, even it out.
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01-29-2018, 01:57 PM | #304 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Alright, another ported head added to the list! Even without the added compression it will make a nice difference in the upper RPM range and avoid the extra heat and pressure on the bearings as well. Good idea for a long distance overland build.
I saw you were looking at a 520 chain conversion as well. I have the part numbers listed in the link in my signature if you need them.
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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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01-29-2018, 06:52 PM | #305 | |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Quote:
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01-30-2018, 02:51 AM | #306 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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It needed to be done. It's far from complete, so if you think you have some info that should be there but you don't see, then let me know.
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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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01-30-2018, 04:53 PM | #307 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Waiting on parts. Gasket set, spokes, universal rear fender, chain slider, and bearings. Decided to fab up some side racks for soft bags.
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01-30-2018, 05:12 PM | #308 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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I'd like to share my obsession with why I think the humble Hawk would make a great travel companion in the developing world. On my trip through Central and South America last year the overwhelming majority of motorcycles encountered we're Chinese CG variants, I'm talking a 1000 to every one of everything else. It occurred to me that riding my Honda CRF250L was a good choice due to it's inherent reliability however, if I ever needed a critical part and I wasn't near a large city, I was SOL. On the other hand, taller de motos ( motorcycle shops) for the locals, riding Chinese motos were everywhere. Now given the choice of of spending a couple of days or more waiting on that genuine Honda part or doing a complete engine R and R in a couple of hours at a roadside shop, the value of the Chinese bike increases.
Another thing that is totally unnecessary is big bore high HP Adv bikes. The only advantage they have is collecting speeding tickets. Crusing at 90 kph is all you really need. Viva el Hawk.
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02-04-2018, 04:12 PM | #309 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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After the porting and valve grind I buttoned her back up and did a compression test. Pretty happy with 165 number. Was thinking aboit at least doing a ring job, bit my cylinder looked really clean, no scoring no nothing. Not bad for a 4500 mile engine
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02-04-2018, 06:07 PM | #310 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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That is right around where my hawk floats as far as compression goes. I would call that pretty healthy
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02-05-2018, 02:35 PM | #311 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Took the frame to the welder today to check the welds and straighten the foot pegs. In the interim I decided to start on the seat.
The stock seat suffers from poor quality foam and the obnoxious hump. I'm also going to make it a bit wider in the hip area. Phase 1, remove cover, cut stock foam, measure and cut 6lb carpet pad to fit cutout. Glue in place and rough shape with knife. Need a sharpie a serrated edge knife, scissors and spray adhesive.
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02-11-2018, 11:31 PM | #312 |
Join Date: May 2007
Location: Warshington
Posts: 928
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Wolf where do you get the 4 fingered tool for removing/ tightening the slinger nut ? rj
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02-12-2018, 08:59 AM | #313 |
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Join Date: Oct 2016
Location: Houma, La.
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This will work for the clutch and centrifugal oil filter.
https://www.ebay.com/itm/Honda-Oil-F...lZX~UP&vxp=mtr https://www.motosport.com/product/?a...segment=badger You can also take an old socket and grinder and make you own.
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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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02-12-2018, 05:25 PM | #314 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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I just use a punch and a 5lb hammer. Been using that method for years and nary a problem.
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02-12-2018, 05:39 PM | #315 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
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Got the the tank cleaned up. Also chopped 6" off the seat to make room for an Acerbis auxiliary tank to mount on the frame rails. The seat came out pretty well if I say so myself. It's wider, flatter and firmer.
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