Scooterotica

Hi All,
Might be a stupid question but be gentle with me.
I currently run a TS1 bored to 71mm with a 60mm crank. It's time for the cylinder to be replated & a piston change.
My question is can i rebore to 72mm & use an RB25 Asso piston?
Your comments greatly appreciated.
Thanks.
Steve.

First engineer scotty to kirk; it's borderline on the simulator we need to do more tests if we try it now captain the engines Gunnar blow,

Muppet,

to take the ts1 to 72 you would need to steel line i think that is if you dont end up with a pile of fins trying to fit a liner

Misunderstood wrote:Hi All,
Might be a stupid question but be gentle with me.
I currently run a TS1 bored to 71mm with a 60mm crank. It's time for the cylinder to be replated & a piston change.
My question is can i rebore to 72mm & use an RB25 Asso piston?
Your comments greatly appreciated.
Thanks.
Steve.

Steve I know that Ray @ AF has bored the RB22 from 70.0mm to 72.0mm but has taken about 10mm off the lower section of the skirt so that the spiggot is not too thin.
The core diameters of both cylinders are similar so I see no problem in doing this except for the added cost as a new cylinder head will need to be done as the piston crown angle is shallower!

Best regards

Ian Frankland
Taffspeed
07794 003276

Thanks Ian,
That's the answer I was looking for!
You've made my day.
Regards,
Steve.