Bridgestone Motorcycle Parts Discussion Board

Bridgestone Tech Talk => 175 & 200 Talk => Topic started by: bert Lilley on October 02, 2023, 06:50:55 PM

Title: 175cc bridgestone
Post by: bert Lilley on October 02, 2023, 06:50:55 PM

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

Title: Re: 175cc bridgestone
Post by: OldSwartout on October 03, 2023, 04:10:55 PM

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

Title: Re: 175cc bridgestone
Post by: bert Lilley on January 19, 2024, 08:53:57 PM

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