Suzuki 190 - which barrel?

[holty]

i built one of these last year, bought the barrel off ebay, it was tuned by cs engineering i think, i got a piston from beedspeed gave the barrel a hone and it went very well, a bit faster than a standard 200, i had the correct head to match the profile of the piston, it was topped and tailed so i used a standard sized conrod, made i nice budget motor, i did have to shorten the piston skirt, i think its in the dave webster tuning book, i think if you were building one from scratch a spanish smallbore barrel with the big transfers might be a good starting point, they are about the same size as a 200 transfers.

[Knowledge]

I only have oversize NOS Suzuki pistons, but it is worth noting that the distance between the top peg and the bottom pin positions varies from 30mm to 37mm and 45mm, showing the progression of the piston through its generations.

I would opt for the Mitaka piston that is ER. The quality is good and the ring pegs should be wide enough to miss the inlet port. If you want an old piston to play with, I can supply, but I can’t guarantee that it won’t have a hold in the top.

Happy days.

[Storkfoot]

I only have oversize NOS Suzuki pistons, but it is worth noting that the distance between the top peg and the bottom pin positions varies from 30mm to 37mm and 45mm, showing the progression of the piston through its generations.

I would opt for the Mitaka piston that is ER. The quality is good and the ring pegs should be wide enough to miss the inlet port. If you want an old piston to play with, I can supply, but I can’t guarantee that it won’t have a hold in the top.

Happy days.

Thanks, Martin. I’ll keep you posted.