03-30-2009, 02:31 AM | #1 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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125 Pit Bike Oil Leak Repair
My son's 125 developed an oil leak out of the left side, and I presumed it was a shifter seal leak until I started investigating further. I figured that the leak was caused by excessive crankcase pressure, so I added a valve cap vent. That seemed to free up some power, but the leak remained.
The photos below show the removal of the flywheel, stator plate and o-ring. The replacement o-ring, part number 91301035003 was about $7 at the local Honda dealer. No more leaks. \
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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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03-30-2009, 12:30 PM | #2 |
Join Date: Nov 2007
Location: N.E. Saskatchewan, Canada
Posts: 679
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Nice. If all of us can do this once per maintenance item we will have a good tech resource for the novice or the mechanically inclined but forgetful kind.
We should sticky this as soon as you ad honda part# and engine modle...although 125 china horiz. engine says it all
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'91 Yamaha Warrior- stage 2 '83 Honda ATC 70 '08 Yongjiang 125cc mx (Loncin) '08 Yongjiang 150cc atv (Jinlong) |
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03-31-2009, 02:01 AM | #3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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I edited the post to include the part number.
Cheers!
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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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06-20-2010, 02:13 PM | #4 |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
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I'm sorry I missed this post when you first wrote it, W&G. As usual, your writeup is great, and the photographs are wonderful. If I ever get a Honda engine, I am certain I will spend a lot of time reviewing your excellent posts!
Spud
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Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
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06-20-2010, 03:38 PM | #5 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Thanks Spud.
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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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06-20-2010, 08:28 PM | #6 |
Join Date: Mar 2007
Location: Abbotsford, BC, Canada
Posts: 4,880
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Me too, thanks You should add it to the tech stickies.
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07-18-2010, 12:28 AM | #7 |
Join Date: May 2009
Location: SASKATOON
Posts: 1,161
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PULLEY REMOVAL
Is that a tool for removing the pulley?? if so does it work on all the motors???
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07-18-2010, 01:36 AM | #8 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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So far, it has worked on XR200R engines from the early eighties, a GY6 ATV and a 125 pit bike Honda clone.
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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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02-21-2023, 02:22 PM | #9 | |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,614
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Quote:
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02-21-2023, 04:01 PM | #10 |
Join Date: Aug 2009
Posts: 563
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No, it doesn't, Thumper, it only drives the oil pump shaft, there is no counterbalancer. At the other end is the cam sprocket
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