3 replies to this topic

[merlin4x4]

hi.all.
i am new to this forum and am hoping some of you may be able to help me.
i have a montesa cota 247 which i have owned for the last twenty years or so, and the last 15 years
it has been in bits and boxes in the garage. having recently moved it nearly went to the scrapman but i decided
to keep it in the end. i have started to put it back to gether again to se if i can get it running.
so far so good but i now need to put some oil in the engine and gear box but i dont no what type and amount
to put in. so far i have discoverd it is a 1972 model.

any help would be of great help as this is a classic bike and it deservs better than sitting in a pile of
bits just rotting away.

many thanks
stephen.

[dandukedaisy]

Hi Stephen,
I have a 1971 cota 247. I use a 40:1 fuel/oil ratio.....Castrol 2 stroke oil. For the clutch I use 7Floz of ATF (automatic transmission fluid). For the gearbox I use 10.5 Floz of SAE 90w. For the Forks I use 6.5Floz of SAE 30w per leg. Hope this helps Dan.

[merlin4x4]

dandukedaisy, on 16 January 2011 - 08:15 PM, said:

Hi Stephen,
I have a 1971 cota 247. I use a 40:1 fuel/oil ratio.....Castrol 2 stroke oil. For the clutch I use 7Floz of ATF (automatic transmission fluid). For the gearbox I use 10.5 Floz of SAE 90w. For the Forks I use 6.5Floz of SAE 30w per leg. Hope this helps Dan.

cheers dan that helps alot. just need to get some oil now and a couple of other bits and then see if it will
start for the first time in years.

thanks
stephen

[keychange]

Recommended fuel ratio is 4% so 25:1 - new oils are good but I don't have problems with fouling at that mix.

Original manual states

Gearbox SAE-90 - 33cc
Clutch SAE 10 W30 200cc
Forks SAE 20 or 30 190cc ( most people appear to use Auto Trans Fluid ATF) I used it last change and I think it is an improvement.
Send me message I can shoot you a copy of the useful pages of the manual - most is in Spanish