T350 Piston Help!

[Scorch]

Hi Jeff and welcome to the forum. That's a great project bike. I'm sure there are some guys here who know exactly what you need, they are pretty experienced Suzuki 2 strokers, they've helped me a lot.

cheers
Scorch

[elbert]

Suzuki only made one oversize (61,5 mm) pistons for the T350. Wiseco made larger over sizes but they are very hard to find theese days. One trick I've read about (think it was on the old forum) is to use TS185 pistons which are available in larger bore sizes, but since they also has a higher piston crown you would have to put a spacer below your cyllinders to compensate for this.
Haven't tried this my self yet so I don't have any details on how to do it, maybe someone else here has though.

[netbikes]

I ran that post about the TS185 pistons when I was having similar time as Jeff, good upgrade for race or cafe bikes with chambers and rear sets but won't work in a standard trim bike, the 4mm barrel rise causes everything behind it to be out of line, airbox hits the top of frame, mufflers won't line up with frame mounting holes, fouls both the brake and gear levers etc.

I have a set of those old school weisco over oversize pistons here but not for sale, keeping for a future project. Got them on evilbay about 5 years back.

Best bet Jeff is to locate some good barrels.

[dinogt]

very interesting...but, i don't understand so,
Did this piston need a gasket larger under the cylinder ?
This piston is aviable in wiseco 64 - 64.5 - 65 - 65.5, is there enough cast in the cylinder to go from 61.5 to 65mm ?
Does the 175 PE piston (62 from 64) also good ?
Thanks for your answers

[Barry S.]

The T350 piston is very short over the wrist pin to the top of the crown, other pistons would stick out the top of the cylinder without a spacer under the cylinder but this causes other problems.

[netbikes]

very interesting...but, i don't understand so,
Did this piston need a gasket larger under the cylinder ?
This piston is aviable in wiseco 64 - 64.5 - 65 - 65.5, is there enough cast in the cylinder to go from 61.5 to 65mm ?
Does the 175 PE piston (62 from 64) also good ?
Thanks for your answers

=========

Yes that is correct but it is not a gasket, it is an alloy spacer.

The weisco pistons were made for the t350 so you have to presume that there is enough meat in the cylinders for them.


The PE175 pistons are actually ok the Kawasaki A7, They are not a direct swap, there is some machining to do, from memory I think you need to move the ring locating pins to suit the A7 porting.

[dinogt]

I dream, it is a wealth of information here
Thanks for the difference translation between gasket and alloy spacer.
On the 250 T there is a lot of meat in the cylinders, so , hope it does too for the 350 T.
On the 250T the piston for RG125 Gamma are good, just a little more intake gaz