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125cc scooter gear oil

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farlow2014
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PostPosted: 17:48 - 26 Dec 2014    Post subject: 125cc scooter gear oil Reply with quote
hi all bought some gear oil today as i have a leak on bottom of my tranny its ( comma gear oil sx75w-90 is this ok for a scooter ?

also whats best engine oil to get as i do run my scooter quite hard sometime only for few minuets on a back road from work

it 4 stroke chinese scoot
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Copycat73
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PostPosted: 17:56 - 26 Dec 2014    Post subject: Reply with quote
would be useful to know what particular machine we are talkin about
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farlow2014
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PostPosted: 17:57 - 26 Dec 2014    Post subject: Reply with quote
Copycat73 wrote:
would be useful to know what particular machine we are talkin about


as it says above buddy 4 stroke chinese - there pretty much all the same
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andys675
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PostPosted: 18:01 - 26 Dec 2014    Post subject: Reply with quote
your trannies bottom is leaking?

make sure the vent is clear, could be a build up of pressure
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Copycat73
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PostPosted: 18:01 - 26 Dec 2014    Post subject: Reply with quote
I cut my teeth on Japanese and though I`ve never owned a Chinese copy if you tell me what it is I can google the spec. and advise accordingly... perhaps some thing you could do your self.
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farlow2014
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PostPosted: 18:03 - 26 Dec 2014    Post subject: Reply with quote
Copycat73 wrote:
I cut my teeth on Japanese and though I`ve never owned a Chinese copy if you tell me what it is I can google the spec. and advise accordingly... perhaps some thing you could do your self.


good luck its a direct bikes db125t-9 with a newer pulse engine, engine code 157qmi-A
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farlow2014
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PostPosted: 18:05 - 26 Dec 2014    Post subject: Reply with quote
andys675 wrote:
your trannies bottom is leaking?

make sure the vent is clear, could be a build up of pressure


put hole in buttom of it had to repair but still have small pin hole never got around to fixing it as was very small amount leaking over long period of time currently have crappy 10/40 engine oil in it
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Copycat73
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PostPosted: 18:06 - 26 Dec 2014    Post subject: Reply with quote
The engine oil required is a good quality Sae10w-40 suitable for scooters using a wet clutch. The approximate capacity is 1000ml. The final drive should use 200ml of a Sae90w gear oil, again suitable for scooters. Thumbs Up
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Last edited by Copycat73 on 18:11 - 26 Dec 2014; edited 3 times in total
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farlow2014
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PostPosted: 18:07 - 26 Dec 2014    Post subject: Reply with quote
farlow2014 wrote:
andys675 wrote:
your trannies bottom is leaking?

make sure the vent is clear, could be a build up of pressure


put hole in buttom of it had to repair but still have small pin hole never got around to fixing it as was very small amount leaking over long period of time currently have crappy 10/40 engine oil in it


plan to fix hole when draining that rubbish oil out hence needing to know if stuff i got is ok
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barrkel
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PostPosted: 19:22 - 26 Dec 2014    Post subject: Reply with quote
Workshop manual for my SH300 specs 10w30 engine oil for final drive, the same as goes in the main sump, FWIW.
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farlow2014
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PostPosted: 19:28 - 26 Dec 2014    Post subject: Reply with quote
barrkel wrote:
Workshop manual for my SH300 specs 10w30 engine oil for final drive, the same as goes in the main sump, FWIW.


any suggestion on brand of oil and do i need part or semi synthetic first scoot so not to clued up on this stuff
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barrkel
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PostPosted: 19:44 - 26 Dec 2014    Post subject: Reply with quote
farlow2014 wrote:
barrkel wrote:
Workshop manual for my SH300 specs 10w30 engine oil for final drive, the same as goes in the main sump, FWIW.


any suggestion on brand of oil and do i need part or semi synthetic first scoot so not to clued up on this stuff

I'm probably the wrong person to ask that one, as I put fully synthetic in and change at the service intervals, trusting Honda (right or wrong).

With a Chinese bike, more frequent oil changes are probably a better idea than higher quality oil, so I'd go with supermarket cheapest, but change every 1000 miles or so.

For transmission, I don't think it would make much difference whether you used engine oil or gear oil. There are only three rotating shafts in there, nothing else moving. You might lose a non-measurable bit of power with gear oil, as I believe it's more viscous. The final drive gears sit part submerged in an oil bath and fling the oil up as they go around. So I don't think you'd be relying on the stickiness of the oil much either.

New oil is better than any old oil, but probably something else would fail before lack of lubrication in the final drive specifically is a problem.

For example, if you're changing the belt or clutch, don't use an impact wrench on the clutch bolt - there's a risk of damaging the teeth in the final drive. That'll kill the final drive much quicker. Don't try and use the rear brake either. Use something that can grip the clutch bell.
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Bikes: S1000R, SH350; Exes: Vity 125, PS125, YBR125, ER6f, VFR800, Brutale 920, CB600F, SH300x4
Best road ever ridden: www.youtube.com/watch?v=s2MhNxUEYtQ
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Old Thread Alert!

The last post was made 11 years, 3 days ago. Instead of replying here, would creating a new thread be more useful?
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