Scooterotica

Lads we need some help here me mate has popped his pacemaker gearbox(17x46 sprockets) in his muggy 200 ,now the problem is we dont have another in fact all we do have is 2x li125 gearboxes and a selection of top and bottom sprockets and stretched chains a JL3 and A 30mm delly what can we do with these to get roughly say a GP200 ratio .He needs to get on the road again as this is his only transport ...Any help appreciated ...Cheers.Billy

17X47 would give you 5.09 with a stretched 81 link or 16X46 would give you 5.30 with a stretched 80 link,download this and have a play http://www.tonycassidy.com/Gearbox_Visualiser.html
theres also this off the old MB site



Li 125 Series 1 and 2, Early Series 3

This gearbox has a very high revving 1st and 2nd gear with a big jump between 2nd to 3rd.
It tends to over rev in top gear which would limit its top speed.
If the scooter is a wide style then standard gearing could possibly be fine as a high revving gearbox would suit the weight and size of the machine.
Increasing the front sprocket to a 16 tooth would raise the gearing to have an overall top ratio of 5.30:1 which possibly its best set up, this would however make the jump between 2nd and 3rd even more noticeable!
Swapping the gearbox to a LI 150 Italian would improve the all round performance.

Cheers bud thanks for your help ....