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#1 |
Join Date: Nov 2023
Posts: 12
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Raven 250 will not start
On my son's bike the oil spinner came loose and wore a hole in the side of the crankcase. I cleaned it out the best I could and replaced the spinner and crankcase cover. Tried to start it and the motor turns just fine but will not start. It has spark but just in case I pulled the coil off my bike and tried it on his and still nothing. Removed the spark plug again and checked for spark again and it has spark. Put my finger in spark plug hole and checked for compression and it has compression. Before I replaced the spark plug I sprayed in some starting fluid and still nothing, not even a back fire. Not willing to start throwing money at the problem without some advice as to where I should be looking. Any help with this will be greatly appreciated.
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#2 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,543
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I hope I don't sound stupid, but what's an oil spinner?
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it |
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#3 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Centrifugal oil filtration. It's what the CG engine uses for removing fine particulate from the oil. Many other small Honda 4 strokes use them too, including the 125cc in the current Grom and other bikes.
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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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#4 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 917
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Do a compression check.
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#5 |
Join Date: Nov 2023
Posts: 12
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It's that thing that shares the space in the right side crankcase with the clutch basket.
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#7 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Quote:
Glad you found it. The metal from the spinner and cover must have chewed up the rings and cylinder. Thankfully these engines are cheap to rebuild. Good proof that an actual Guage test is better than the old finger method.
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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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#9 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 917
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To me a big bore is not worth the money,a few more cc's won't make it run any better than stock.
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#10 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Quote:
I basically have that exact kit on my bike, I just got the cam first before he ever offered them and ordered the cylinder, piston, and head. It's no joke.
__________________
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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#11 |
Join Date: Dec 2020
Location: Dayton Pa.
Posts: 917
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Thanks Dan ,thats good to know. Might give it a try,was thinking of buying a new bike any how. Maybe this is all i need.
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Tags |
compression, fire, spark, start |
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