Bridgestone Motorcycle Parts Discussion Board

Bridgestone Tech Talk => 175 & 200 Talk => Topic started by: fahrkle on January 19, 2018, 02:15:18 PM

Title: BS 175 and 200
Post by: fahrkle on January 19, 2018, 02:15:18 PM

These are my latest finds.! The Mach II I picked up in December - original owner with title - 3600 miles - stored for 30+ years. Doing the carbs now and just got air boots from Richard, otherwise its all there. The 175 came from VA and runs awesome. The TMX was another barn find for over 30 years it sat. Got it in December as well and new fuel, filter and lines and it fired up on 3rd kick!!

Title: Re: BS 175 and 200
Post by: OldSwartout on January 19, 2018, 02:23:21 PM

Wow! Very nice bikes.  BTW, your 175 has 200 cylinders on it (or it's a complete 200 engine).

Title: Re: BS 175 and 200
Post by: fahrkle on January 19, 2018, 02:27:35 PM

Thanks - how do you tell the cylinders apart?

Title: Re: BS 175 and 200
Post by: OldSwartout on January 19, 2018, 03:47:19 PM

The two indentations in the 5th cylinder fin from the top are die ejection pin bosses.  The 200 cylinders have them, the 175's don't. Makes them easy to spot.
 You probably have a complete 200 engine as the 200 cylinders won't fit the 175 crankcase without some machine work to clear the larger 200 cylinder spigots.

Title: Re: BS 175 and 200
Post by: fahrkle on January 19, 2018, 09:04:42 PM

Thanks for the info!

Title: Re: BS 175 and 200
Post by: paul on January 22, 2018, 09:42:52 PM

The red 175 appears to have a 200 seat.