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#1 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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Hey guys one of my friends helped me change the oil on my hawk DLX 250 2020 and he thought it was a great idea to put Castrol ATF in it. I believe it messed up the compression and my engine although I'm not entirely sure I need help figuring that out, but a mechanic told me I would need an engine rebuild kit. I'm trying to figure out the best website to buy that off of. I've changed the oil and bought a new spark plug. I bought the bike used with 80 miles on it I tried to take a trip to Chattanooga after the oil change and the bike shut off on me. it used to start and idle but would shut off after a certain RPMs now it won't start at all I'm trying to figure out what I need to do and the best and cheapest website to get it off of right now I'm financially unstable and that bike was my means of making money I need help today
Last edited by Pharaoh; 12-06-2023 at 02:06 PM. Reason: talk text errors |
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#2 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,656
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Before you start throwing money at the bike. Do a valve adjustment and check valve lash is within specification. If they have never been checked, it is more than likely there is no clearance at all and the valves aren't completely closed. Thus, loosing compression. Very common on these bikes.
And of course change the oil.
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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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#3 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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ive did an oil change and got a new spark plug its fuel injected and electric start im not sure how to check the values this is my first bike
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#4 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,656
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Here's a good Tutorial. This will be the same as on your Hawk. https://cscmotorcycles.com/tt250-valve-adjustment/
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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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#5 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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smh Im all messed up i dont have the value adjustment tool
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#6 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,656
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No special tools are needed. Feeler gauge, 10mm open end wrench and a pair of needle nosed pliers to hold the valve adjuster screw from turning while tightening the nut.
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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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#7 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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okay before i begin will that really make it act up with rpms and also lead to it not starting at all
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#8 |
Join Date: Sep 2023
Location: SWFL
Posts: 30
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Can get feeler gauages from autozone or other similiar type stores for really cheap. Just make sure you get the correct size (0.005). Though its roughly the same size as a normal piece of paper. Wouldnt recommend a piece of paper for it but in a pinch can get give you a close guestimate. You mentioned it would idle but die off after a certain rpm. That sounds more like a fuel issue to me personally. Maybe a clogged injector or something with the fuel system. Can check to see if there is no kinks in any of the lines. But as you mentioned you took it to a mechanic and they said it would need a rebuild (assuming top end). Dont know many sources for dlx stock parts personally. If you want to go the big bore route could use MotoCult. Seen videos floating around online about them being used and people being happy about the results.
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2023 Tao Tao tbr7 (Mainly stock for now) 1998 Suzuki Intruder VS800 (bobbed out) 2021 Sur Ron Lightbee Supermoto (Heavily modified up to 40hp peak) ![]() |
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#9 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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the mechanic is just the guy that built it that i bought it from and he works on his bikes for a hobby hes stopping by tomorrow im defiantly starting with the values but when i try to started it now something in the cylinder sounds clogged but the only that was change was the transmission fluid and the trip and i put premium gas in it
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#10 | |
Join Date: Sep 2023
Location: SWFL
Posts: 30
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Quote:
I feel ya. How was the spark plug before you changed it? If it was fouled or had a lot of black soot(carbon type shit) built up on it could be an indication it had oil in the compression chamber. Premium shouldnt really make a difference unless the bike has been heavily modified. 87 works fine for stock imo. But yeah definetly check the valves. For me, mine were too tight for a bit (forgot about it). But it still ran. Not sure what could be causing a clogged sound, havent experienced that myself on a bike. Besides maybe its not getting enough air..... Actually there is one thing i could possibly think of. The air box. Idk if the dlx has it but I assume it would. Theres a hose coming off the rear part of the engine next to the starter that goes into the air box. It could be flooding the air box with oil. Can try pulling off the portion to the air box and if oil flows out that can definetly be an issue
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2023 Tao Tao tbr7 (Mainly stock for now) 1998 Suzuki Intruder VS800 (bobbed out) 2021 Sur Ron Lightbee Supermoto (Heavily modified up to 40hp peak) ![]() |
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#11 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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it was pretty black and dirty i also did notice when i cleaned the throttle body that the air intake had not oil but gas in it not to mention i only cleaned it because i thought it was the carb i feel like im getting closer and closer to the answer
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#12 |
Join Date: Oct 2023
Location: Western PA
Posts: 278
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There is a drain nipple on the bottom of the Hawk DLX air box. It is molded into the black plastic and has a black plastic removable cap. If there is excessive oil or water, or gas in the air box, it will drain out if you pull the cap.
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2022 Hawk DLX EFI * 17T Front / 47T Rear / 428 x-ring chain * Kenda K-760 front + rear * Banjo brake light switch * LED headlight + front turn signals * Custom cutting board skid plate * Debadged (I don't like to brag about the superior strength!) * Top speed, GPS verified, as equipped: 68 mph (so far) |
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#13 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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okay okay do you think that this could be the problem? like maybe its being choked out and would that led to it not starting
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#14 |
Join Date: Oct 2023
Location: Western PA
Posts: 278
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I suppose it's possible, but I can't say for sure. (I'm handy, but far from a mechanic) I've only had my Hawk since August and that isn't a problem I've had. There is a crankcase breather that vents into the air box. This would be the source of oil in the air box. I don't know what atf fluid would do in a place where motor oil belongs, but hopefully your piston rings aren't toast.
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2022 Hawk DLX EFI * 17T Front / 47T Rear / 428 x-ring chain * Kenda K-760 front + rear * Banjo brake light switch * LED headlight + front turn signals * Custom cutting board skid plate * Debadged (I don't like to brag about the superior strength!) * Top speed, GPS verified, as equipped: 68 mph (so far) |
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#15 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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Im more worried about my values being damaged or more being wrong i got it at 80 miles its at about 2500 now
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Tags |
#hawk250, hawk 250 electric start, hawk 250 motor, hawk dlx |
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