Forum > 175 & 200 Talk

175cc bridgestone

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bert Lilley:
Hi guys,anyone got stock Port timing for the 175 cylinder.
Top of cylinder to top of Ex. Port
Top of cylinder to top of main transfers
Top of cylinder to top of boost port
Cant seem to find it on the net ?
Tanks Bert Lilley Canada

OldSwartout:
I checked a couple !75DT's from my stash of scrap cylinders:
Exhaust 26.35
Transfer 35.30
Boost 33.55

bert Lilley:
Karl, thanks . I'm trying g to run numbers thru my computer program to help out a guy who is building a cafe racer for the road, I've only messed with the 350 as you know but willing to help out BS175 guy.
Not only with cylinder pirti g but 4 bearing crank,updated pistons, expansions etc

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