jackbmx2010
Well-Known Member
hi, my gear box on my 125 is stuck between 1st and neutral. it wont go into second and when i ride in first it slips back into neutral. my gearbox is 1 down 3 up full manual. can anyone help
**gearbox help needed**
- Thread starter jackbmx2010
- Start date
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mattbombers
Senior Member
whats ya oil level like? and how old is the oil?
jackbmx2010
Well-Known Member
oil is full and about 3 weeks old. but it was leaking a tiny bit after i stopped on the top left rear of the motor where the side cover goes on. i took it off when i got home but couldnt see where it was coming from.dad reckons its jammed inbetween 1st and neutral ?? i rode it again like 10 mins ago and it stays in first untilli go up hill or accelerate hard then it goes back to neutral
bulldog93
Well-Known Member
Couple of things could be wrong:
- Clutch could be slipping - Wrong oil; Should use castrol active 4t, 900ml.
- Gear seletor arm is bent - To hard shifting, stacked and bent; Replace, Take of clutch cover, clutch pull out and check.
- Dogs missing off the gears - Bad luck I guess; Pull casing apart and inspect.
- Circlip stuck underneath a gear unableing you to change up - Bad luck I surpose; Pull casing apart (Don't say in won't happen because it has to me).
The 1 down, 3 up gearboxs are shit. I had one.. Problems. Can a better engine all up.
Here is a thread for refferal if you don't know how to pull your engine apart:
- http://www.miniriders.com.au/tech-talk/28247-stripping-125-a.html
- Clutch could be slipping - Wrong oil; Should use castrol active 4t, 900ml.
- Gear seletor arm is bent - To hard shifting, stacked and bent; Replace, Take of clutch cover, clutch pull out and check.
- Dogs missing off the gears - Bad luck I guess; Pull casing apart and inspect.
- Circlip stuck underneath a gear unableing you to change up - Bad luck I surpose; Pull casing apart (Don't say in won't happen because it has to me).
The 1 down, 3 up gearboxs are shit. I had one.. Problems. Can a better engine all up.
Here is a thread for refferal if you don't know how to pull your engine apart:
- http://www.miniriders.com.au/tech-talk/28247-stripping-125-a.html
jackbmx2010
Well-Known Member
Thanks mate, I reckon it's the selector arm cause my dad crashed it and bent the lever and footpeg and I do shift pretty hard. Thanks for the help.
mattbombers
Senior Member
was you riding around paccas today?
jackbmx2010
Well-Known Member
unless it was in my street then probably no. could hav been blake cuz his bike looks almost like mine
