Engine and Gearbox oils are different right?

[Frankie]

Sigh...

Im pretty sure Im right...

On a bike the Engine and Gearbox oil are different oils and kept ceperate right?

Thats what I say... magua thinks its just one oil for both gearbox and engine...

I think hes wrong... any one care to tell us how it is?

Thanks

[FlyingDutchMan]

I've never heard of a bike thats got seperate engine/transmission oil.

[dangerous]

I've never heard of a bike thats got seperate engine/transmission oil.

ohh you havent huh............ HD, moto guzzi, BMW just to mention a few, infact I'd say of the cuff its feely much just the jappas that have motor & g/box all in one (would expect that late model Triumph, Duc etc are all in one)

ps: the Guzzi has 3 seperate oil sumps engine, g/box and finel drive.

[Sparky Bills]

Two strokes take them seperatley, What kind of bike we talking here?

[Frankie]

1988 FZR250 2kr

[dangerous]

1988 FZR250 2kr

One too Magua..... nill too Frankie, the FZR250 is all in one as are all Jappa's.

[Frankie]

ah well i tried...

More like one to Magua... Ten to me -_- atleast that

[カワサキキド]

I've never heard of a bike thats got seperate engine/transmission oil.

Your CBR isn't seperate

[Motu]

It used to be the norm to have seperate oils for engine,gearbox and primary drive/clutch - which makes perfect sense as they each have a seperate function.Then some of the small 2 strokes,eg,BSA Bantam combined gearbox and primary/clutch oils.In 1959 Alec Isognosis put the engine and trans/final drive in one unit in the Mini,this stood the world on it's ear - never been done before,it'll never work etc.He proved them wrong - later came Mr Honda with his small 4 strokes with combined oil and the Japs have done it that way ever since....the rest of the world knows better.

[Milky]

I imagine all bikes with dry clutches would keep the two seperate... Anyone know of a bike with a dry plate clutch and single load of oil for both 'box and crank?

[Motu]

Well the Aremachi 350 single for a start....

[merv]

I've never heard of a bike thats got seperate engine/transmission oil.

The Honda CRF250 models are like this now so the Jappers are changing a bit too.

[FlyingDutchMan]

ohh you havent huh............ HD, moto guzzi, BMW just to mention a few, infact I'd say of the cuff its feely much just the jappas that have motor & g/box all in one (would expect that late model Triumph, Duc etc are all in one)

ps: the Guzzi has 3 seperate oil sumps engine, g/box and finel drive.

I stand corrected.

Your CBR isn't seperate

:spudwhat: Ummm... maybe you should read my post again...

[slick]

I imagine all bikes with dry clutches would keep the two seperate... Anyone know of a bike with a dry plate clutch and single load of oil for both 'box and crank?

Most modern bikes are all in one oil bath. I had a Ducati 748SP which had a dry clutch and single oil, doesn't make any difference whether it's a dry or wet clutch the only difference is the dry clutch doesn't get any oil, it's the gearbox that requires special oil. Thats why you need bike specific oil to cope with the extra shearing forces from the gears, hence the need for more frequent oil changes. Your average car engine oil doesn't come anywhere near the gearbox and so can be a lower spec oil.

[Motu]

Your average car engine oil doesn't come anywhere near the gearbox and so can be a lower spec oil.

Read my earlier post - I don't know when the front drive BMC power unit finaly stopped production,but 35 yrs would be close.In 1959 engine oils were nowhere near up to todays standard.The old Mini/1100/1300/1800/Maxi/Princess/Tasman/Kimberly/Allegro/Metro (not to mention MG,Riley and Wolseley variants)did pretty well I think.