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09-10-2019, 10:11 PM | #1 |
Join Date: Sep 2019
Location: Texas
Posts: 4
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Hawk 250 issues riding
Hey guys I’m new to the Chinese bike world. I bought a new 250 two days ago. It was supposed to be completely tuned and ready to ride. When I test drove it it seemed sluggish. I figured it was not quite warmed up. Today I cranked it up. It was idling low. I cranked the screw a bit and got it where it sounded good. I take off on it ride for mabe a minute never got past third gear. Turned around to come up a hill down shifted and died. Ok no big deal. So I try to crank back up and it won’t crank. Let it sit for a few minutes and crank it back up. Take off riding does the exact same thing. Messed with it for a couple hours adjust idle screw every which way. Can’t keep it running. After it dies and I get it cranked back up I shift into first and dies until I leave it for a few minutes. Anyone know what my issue could be? I can’t even get the bike broke in at this rate. Any and all advice is greatly appreciated.
Last edited by Ccd4303; 09-10-2019 at 10:50 PM. |
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09-10-2019, 10:19 PM | #2 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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Valves need adjusting. Valve come set too tight from the factory. Read the Hawk resource guide sticky at the top of the Dual sport section.
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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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09-10-2019, 10:24 PM | #3 |
Join Date: Sep 2016
Posts: 138
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Couple things I would check if it were my bike.
First, I don't believe it's tuned an ready to ride. Time to rejet, shim the needle, etc.. Second, adjust your clutch lever/freeplay. Sounds like when it's warm, the clutch isn't disengaging all the way so when you drop it into gear, it stalls the bike. |
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09-10-2019, 10:34 PM | #5 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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If the carb still has the tamper proof screws on the bowl it wasn't tuned. The stock carb come tuned very lean from the factory. Also you need to get some miles on it before it loosens up. It will run much better after about 500 miles or so.
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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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09-10-2019, 10:34 PM | #6 |
Join Date: Jul 2018
Location: NEPA
Posts: 273
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If you purchase the ready to ride bike packages you should have just lit your cash on fire instead. At least you’ll get some street credit.
What everyone else said valves, adjust them and post back. Your good.
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2018 Hawk P&P Decked .040 off the head. 17/43 D.I.D. 428, NGK Iridium plug, DeCat, Wrapped pipe, Custom S.S. Muffler core, Nibbi PE30 115/35, L.E.D. Lights, Digital Cluster, USB port, Cutting Bord skid plate, Oil cooler w/ custom CRF oil filter inline, 5Wt fork oil, Rear Shock, CNC Back Rack, 30mm FAT bars, Bark Busters, ProGrips, Adjustable levers, Shinko 700’s lots of Loctite! |
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09-10-2019, 10:48 PM | #7 |
Join Date: Sep 2019
Location: Texas
Posts: 4
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Ok good deal I was being hopeful and read many forums. I figured I was going to have to get into carb and adjust valves. Most issues I found with everyone else were idling So I was kind of getting worried because mine is idling fine. Glad adjusting the clutch was mentioned, because I never thought about that. I got the assembly fee waived. So I didn’t really waste any money. I got the bike assembled and TTL for 1300 out the door. I will be running though all the suggestions. It might be a few day before I get back with results due to crazy work schedule. I really appreciate everyone.
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09-10-2019, 11:01 PM | #8 |
Join Date: Nov 2016
Location: robertsdale alabama usa
Posts: 1,007
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where do you have the choke lever?
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1991 harley heritage softail classic 2016 hawk kaw h1 400 tripple 13' long chopper in progress 2009 johnny pag bar hog 2004 hd electra glide ultra classic shriner edition 1997 harley davidson 1200 sportster 1972 harley davidson amf sx250 |
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09-10-2019, 11:09 PM | #9 |
Join Date: Sep 2019
Location: Texas
Posts: 4
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The choke is open
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09-11-2019, 12:11 AM | #10 |
Join Date: Mar 2019
Location: Jefferson city Tenn
Posts: 27
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Myne was doing similar stuff coil another thing to consider, I adjusted valves before had problem, cutting out dieing , then just no run, no spark at plug my consideration was recitifer or coil tried cheapest first easiest to work on coil fixed problem, the dual sport maintenance an setup helps
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09-11-2019, 09:16 PM | #11 |
Join Date: Jul 2018
Posts: 64
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I'll jump in on this one. I have tuned the stock carb. My experience is no matter how far out you turn the idle mixture screw, engine will still be lean. Couple different routes. But a kit from nzbrakelathes or a set of drills and drill the the pilot jet to .45mm. This is essentially a 45 pilot jet. I don't know for sure but I think nzbrakelathes kit includes a adjustable needle, install the clip on the needle one step rich, or 4th from top of needle. Stock pipe? 110 main jet. Take your time and read before you tear any thing apart. Carb tuning isn't hard, use your common sense.Post any issues I would be glad to help
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09-11-2019, 02:45 AM | #12 |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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Here’s a couple things well suited to most first tune china bikes:
https://rover.ebay.com/rover/0/0/0?m...2F303210680840 http://rover.ebay.com/rover/1/711-53...g&toolid=11111 |
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09-11-2019, 06:42 AM | #13 |
Join Date: Jun 2018
Location: Pocatello, Idaho
Posts: 794
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Welcome aboard and congrats on you purchase. Good luck on your setup and keep us posted. All the comments are excellent! Pix are a plus!
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A family that works together, plays together, shoots and trains together, and sleds together, stays together. Second amendment! SkiDoo sleds, NOW 2 TTR225, and a BMS250. A couple of quotes (we are not farmers) "I don't get off the farm much" "Am too old school" I call the china bikes "the china syndrome". |
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09-11-2019, 07:24 AM | #14 |
Join Date: Sep 2017
Location: N Texas
Posts: 706
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Once you get that stuff sorted out it will ride great. Guy sold me his with less than 40 miles because he could not get it going right. I did the work stated above and I have about 4,500 miles on my hawk. Also I am not really the mechanical type but was able to complete all this work myself.
Congrats on the purchase and i am sure you will get it figured out and purring like a kitten. |
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09-11-2019, 12:11 PM | #15 |
Join Date: Sep 2019
Location: Texas
Posts: 4
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Is the mixture screw accessible at the bottom of the carb. I just glanced last night and didn’t notice one but I have read there is one under a tamper proof plug
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