95/97 Yamaha Zuma

[reveeen]

Well.....ok.... I run a '97 here.

If I was going to buy a crankshaft it would be a stroker from Athena. I have some bits and pieces, or don't mind making a call, if that helps you out at all?

[aeroxbud]

Pm tuning do lots of stuff for the 96 year on zumma. they are quite helpfull if you want to email them any questions too. www.pmtuning.co.uk/scooter-bike/yamaha-1/scooters/scooters-50cc/bws-50cc-1996-2004.html

[perry350]

Sorry been away,

I thought about a stroker crank, but can't dont want to bur the material away to make way for the conrod.

Thank you for the link, I'll check it out.

[jmkjr72]

well if the vertical athena stroker crank is like the horizontal one you dont have to machine the case for it to work

if i went with the matchin kit for the athena crank i wouldnt have to do any machine work on my case

[perry350]

Thanks for all your help on this one, I purchased a crank from Scooter Attack, Its all back together now and running perfect for the time being, nex the BBK, Carby, Reeds and Pipe.

Thanks again.

[reveeen]

Mar 2, 2012 1:30:52 GMT -5 perry350 said:

next the BBK, Carby, Reeds and Pipe.

This is where it can get expensive, and where you can really mess up. Before you spend any money, define (in your own mind), where you wish to end up. There is a threshold here, between parts a little better than stock, and parts a LOT better, with nothing to be gained by mixing the two.

Oh!, and if you do manage to get any power out of it, plan on a new clutch + clutch bell. (replace your early 2 shoe with a late model 3 shoe)

[jmkjr72]

some of the prebug did come with a 3 shoe clutch not for sure what years
but most of the trans stuff from the newer horizontal will fit in the vertical engine
they run the same blet and i have put a whole clutch bell and torque driver from a newer one on a prebug
that can be a good upgrade for all zumas before 2008 is the 2008 and up clutch bell and torque driver as it has a nice pin angle with no hump in it unlike the older ones

[bw]

Hello,

Not sure this is the right place to ask but will the 2004 + Yamaha bws50 Minarelli 50cc engine fit into an 1997+ Yamaha bws50

Thanks

Tom

[billwill]

May 30, 2024 11:31:30 GMT -5 bw said:

Hello,

Not sure this is the right place to ask but will the 2004 + Yamaha bws50 Minarelli 50cc engine fit into an 1997+ Yamaha bws50

Thanks

Tom

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