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#16 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Not a big deal with the wrong oil type. Maybe change the oil a bit sooner for the next go around just to ensure you got the rest of the "bad" stuff out, but it should be fine.
As far as the oil leak. Is it at the head gasket or the base of the cylinder where it meets the engine cases? This seems to pop up from time to time. You can check the head bolt torque to make sure one or two aren't loose. This will require taking the rocker assembly off, but it is pretty easy - 3 bolts. Then you will see the 4 head bolts. The torque spec is kind of generalized, but I have my head set to 28ft-lbs. Just go over them in a cross cross pattern like you would a 4 lug car wheel. If that doesn't stop the leak then either the head gasket or base gasket may have been damaged during assembly. You can buy both as a pair for about 10-12 bucks on ebay. As far as the bike starting, running, and sounding better. It's amazing what a proper valve adjustment can do ain't it? The running issues you are experiencing aren't uncommon. To really get it to run properly it will require upping the main jet size to at least a 105, shimming the needle with at least 1 shim, and uncapping and turning the idle mixture screw out to around 1 1/2 turns from seated. This is a pretty good baseline carb setup for most stock Hawks and Magicians.
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#17 | |
Join Date: Mar 2018
Location: Texas
Posts: 29
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Quote:
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#18 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Well, in general, it's too lean. If you leave the choke on until it is hot and then open the choke up (turn it off) does it run better, or does it only ever run with the choke on, no matter what?
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#19 |
Join Date: Mar 2018
Location: Texas
Posts: 29
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I can only keep it running with the choke on. I stayed at least 10 to 15 mins and I couldn't keep it running on half choke.
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#20 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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That makes me suspect a vacuum leak. Check the condition of the O-ring seals on the intake to the head surface, and on the carb to the intake surface. Check the intake over very well for any rips, tears, or holes in the rubber and that the flange surfaces on it are flat.
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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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#21 |
Join Date: Mar 2018
Location: Texas
Posts: 29
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O-ring in Carb Well I looked at the O-ring on the carb side and found this above. I didn't pull out the other O-ring yet but it was snug in the seal. |
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#22 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,654
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Looks like you found the problem.
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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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#23 |
Join Date: Mar 2018
Location: Texas
Posts: 29
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Where can I find the same O-ring size at?
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#24 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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I am fairly certain there is a Honda OEM O-ring that is the same size, but you have a couple of other options.
You could buy this kit, which includes an O-ring that will work. https://www.aliexpress.com/item/1Set...ceBeautifyAB=0 Otherwise, if you can measure the inside diameter of the O-ring, and a rough thickness I can try to hunt down a Honda part number that will work. That, or head to your local parts store and try to match up an O ring that can work.
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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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#25 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,654
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You should be able to match up the o-ring at your local hardware store or auto parts.
__________________
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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#26 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Harbor Freight is likely to have an assorted o-ring kit that'll have a match.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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#27 |
Join Date: Mar 2018
Location: Texas
Posts: 29
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Thanks guys! I am headed to an autozone after work and try my luck there.
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#28 |
Join Date: Jan 2018
Location: Forney Texas
Posts: 498
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I'm with Weldangrind, Harbor Freight has a nice package of O-rings in a plastic case, maybe they have the right one?
https://www.harborfreight.com/180-pi...kit-67525.html |
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#29 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
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Quote:
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#30 |
Join Date: Jan 2018
Location: Forney Texas
Posts: 498
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Maybe these but I cant remember if I actually seen them in the store.
If you use the slide bar below the picture you can zoom in and see the sizes that are in the box. https://www.harborfreight.com/397-pi...ent-67580.html |
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Tags |
magician 250cc |
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