Group 4 Race Scooter Winter Rebuild

[paulmgreen]

I thought I'd post progress over the next few weeks of the Winter rebuild of the Group 4 Race Bike. Progress may be sporadic as I have two other projects on the go as well! But there is a definite deadline with the race bike so that will focus the mind!

Today i went down to the workshop at Replay Scooters - it was very handy to have use of the hydraulic lift in Chalky's workshop!

On the bench - mag housing removed


The old mag housing will be machined down to an absolute minimum for 2010 as engine will be upgraded to scoop cooling


mid transmission removal!


Gearbox and clutch out! race engine cases are never togather long enough to get dirty!



It's always noticeable from this angle the different geometry of a race bike set up



A hydraulic bench makes it soooooo easy to work on the scooter!


More progress as it happens!

[soulsurfer]

Nice one Paul, it's not often we get the chance to see this sort of thing

Is it possible to modify the mag housing without removing it, and is it necessary to grind off both lips?

[paulmgreen]

I guess you could do the cooling modification without removing the mag housing, but it would definitely be advisable to remove the stator plate as there is a fair amount of material to remove and the dust / grindings will get everywhere! So you would need to clean really thoroughly afterwards

As for how much to remove...... the race flywheel is machined down to a minimum so sits lower.........

[camel]

would it be possible to have a nosey inside your barrel to see wot sort of porting goes into a race bike????

[J1MS]

Saw pauls race barrel, I think it was at the last Cadwell meeting, very well ported, and it looked very very tidy...

[sean brady scooters]

its not a full circle padded HPC crank then.....

[lifes a drag]

are you planning any mods to the bike ? ,,, a race bike is never finished if u ask me ,
theres always something ells to try to get that little bit more out of it ,,

[paulmgreen]

its not a full circle padded HPC crank then.....

Chalkie Special !! ssshhhhh!

[sean brady scooters]

please dont forget my request paul....

[paulmgreen]

I told you before mate.... I'm not playing Showaddywaddy from speakers inside the legshields.....