gear box oil??

[83rm125]

Hi i was riding my bike its a 1983 rm125 and i noticed a leak in the gear box where the kick starter is (no problem) but i was wondering what kind of oil should go in the gear box.... 20w40 or standerd gear oil? :think: or somthing else

 

[DLHamblin]

Hi i was riding my bike its a 1983 rm125 and i noticed a leak in the gear box where the kick starter is (no problem) but i was wondering what kind of oil should go in the gear box.... 20w40 or standerd gear oil? :think: or somthing else

Do a search on ATF and gear oil; there was a long lengthy thread on the pros and cons of all options a month ago. All and more about each option is discussed in length.

 

[83rm125]

err... :whoa: whats ATF??

 

[wornknobby]

wel you can run that 85 90w stuff, not just gear oil, but a specific kind. can be found at almost any motorcycle shop.

ATF is automatic transmission fluid

I just run 10w-40 motorcycle oil and keep up on checking it and changing it every 5 hours or so. sill comes out clean, i also run one of those magnetic drain plugs for some extra protection.

 

[DLHamblin]

wel you can run that 85 90w stuff, not just gear oil, but a specific kind. .

Just make sure it IS 80/85W GEAR oil; not hypoid gear oil. 80W gear oil is about like a 10W motor oil; 80W hypoid is 80W and your tranny won't like it (its for differentials and the like).

I just mentioned the ATF to search as the whole subject of what to run was thouroghly discussed a month or so agao.

 

[adamant]

Just a light gear oil should do in a 2 stroke. How come some people use a motor oil, its not really meant to go in a gearbox
is it ? Saying that it does in the 4 strokes ? Is there any thing special about a "Motorbike oil".... The difference between a motor oil & a gear oil I belive. Is a gear oil is capable of working under great pressure, ie being compressed between gears. An ATF is the sort of oil that would go into a power steering pump or a auto box, It is more viscouse. I would only use a gear oil in my 2 stroke box. Unless some one can tell me different and give me the reasons why....

 

[83rm125]

Thanks .....this helps :)

 

[Britt Boyette]

Go to your local cycle shop and tell them what you have and what you need. They will set you up.