MBK 100CC OIL PUMP LOCATION 2003

It says the clutch assembly is 112mm in that manual

 

clutch bell
https://www.ebay.co.uk/itm/Polini-C...726232&hash=item5daa650978:g:-eEAAOSwJ4hY~yN4

clutch
https://www.ebay.co.uk/itm/MBK-Nitr...613248&hash=item5d6db75d20:g:SNEAAOSwqVBZYbM7

Pulley
https://www.aliexpress.com/item/328...earchweb0_0,searchweb201602_,searchweb201603_

This last one of this 3 is a Chinese site and deal in many motorcycles/scooter parts
I have used them many times for Yamaha over the years
Once you have registered you can contact this seller for dimensions and they will reply with measurements

complete kit but need to email for dimensions (below)
If right would work out cheaper

https://www.aliexpress.com/item/328...earchweb0_0,searchweb201602_,searchweb201603_

No one seems to do the outer part of the variator pulley so you may have to clean it up with wet and dry paper with WD40 is best

 

yes sorry I goofed up ...........Sorry

 

I will try and contact them and see what they say, ideally, id want the full kit pre-built, if I have to I will try and do it myself (putting it together) i found another site but they don't seem to have the actual parts in stock and they are very expensive, the full kit you gave me from aliexpress comes with a variator front piece that joins to the kick start but it doesn't look like the same one I have strange, but it does come with everything from a clutch to variator all pre-built which is good, ideally if i can get it all in one swoop i will, if i cant then it will be parts at a time, because the aliexpress will take 20-40 days !! thats way too long to wait

 

You can build yourself if you have a large enough socket between 30-40mm, sorry can't remember exact size
and there are videos on You Tube to show how.
You have to weigh up, waiting 20-40 days, or the place which you would have to order paying more for the parts and then waiting

 

I'm popping up to the bike later so will take some pictures of the bike and the engine number etc and post them here for you, hopefully that will clarify everything and then be able to find parts, i contacted that aliexpress earlier but havent had anything back yet

 

Heres some images of the engine number etc