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#16 |
Join Date: Oct 2023
Location: Western PA
Posts: 283
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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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#17 |
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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#18 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,664
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I wouldn't worry too much. Adjust the valves and do a compression and leak down test. Someone has been done on purpose before.
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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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#20 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,577
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There is no choke on an EFI bike. There is an automatic enrichment made by the fuel injection system based on temperature.
Once you get the valves adjusted, if it starts I would let it warm up and dump that oil again. It will be contaminated with leftover automatic transmission fluid. Then put a fresh ~ one quart of good oil in it. If it is still not running right after valve adjustment and fresh good oil, you may have some damage from running the engine with ATF. Rings probably, but also rod bearings, which are flat. The roller bearings on the crank may have survived. OK, so ATF can run hot. It is a pump oil. Yes, maybe short run is OK on ATF. Maybe you even "cleaned" up the engine! But get those valves right and yes, another oil change. YOu definitely want good oil in there!
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-NOS 2020 KTM 250SX (2-stroke motocross) |
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#21 |
Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,664
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The optimal temperature range for transmission fluid is 175 to 220 degrees. Motor oil temperatures between 230 and 260 degrees. The ATF will lubricate just fine but will break down quick above 220 Degrees which is about the Temperature this engines run. ATF is a lubricant, otherwise every transmission out there would of blew up by now. lol Just follow the advise and do the valve adjustment before doing anything else.
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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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#22 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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so my best course of action because the engine is so simple is compression test then valves adjustment if that doesn't go well then engine rebuild? and if that doesn't work either?
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#23 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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alright ill do that and will be back tomorrow some time
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#24 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,577
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Valve adjustment first, cold engine. Compression test relies on the valves closing and opening on time. If it starts, good news. But warm it up and dump that oil/ATF mix. Then get new fresh oil in there.
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-NOS 2020 KTM 250SX (2-stroke motocross) |
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#25 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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the battery is almost dead from start attempt but im about to post a video of me trying to start it
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#26 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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okay okay got it thanks
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#27 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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dead battery start attempt
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#28 |
Join Date: Oct 2023
Location: Western PA
Posts: 283
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It looks like the clamp is missing on your exhaust....by where the kickstart folds up to.
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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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#29 | |
Join Date: Sep 2023
Location: SWFL
Posts: 30
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Quote:
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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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#30 |
Join Date: Dec 2023
Location: Knoxville
Posts: 56
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yes i can move it by hand
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Tags |
#hawk250, hawk 250 electric start, hawk 250 motor, hawk dlx |
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