classic motorcycle forum

Motorcycle Discussions => Identify these bikes! => Topic started by: Steve4u2c on September 30, 2006, 01:44:28 AM

Title: BSA Sunbeam
Post by: Steve4u2c on September 30, 2006, 01:44:28 AM

Hi, just bought a BSA scooter with no documents, i have read where the frame & engine numbers usually are on BSAs of this age but have so far been unable to find them.
Can anyone please point me to the exact position of them please?

Title: Re: BSA Sunbeam
Post by: L.A.B. on September 30, 2006, 02:23:14 AM

The listed positions for the engine and frame numbers are:
Frame = somewhere on the main stand brace.

Engine = *should* be on the left side of the crankcase below the barrel joint.

Which model is it, the 250cc four stroke twin or the 175cc two stroke single?  

Title: Re: BSA Sunbeam
Post by: Steve4u2c on September 30, 2006, 03:25:46 PM

Its the two stroke 175, I'll have another look this morning thanks.

Title: Re: BSA Sunbeam
Post by: G1ULZ on October 21, 2007, 08:32:24 PM

You  maybe  interested  in  the  picture  of  the  BSA/ Sunbeam  assy  line  in  64  shop  at  Small  Heath.  It  shows  the  two  stroke  engines.   Both  types  where  built  together  (  twin  and  single )  I  am  secound  from  the  left  and  was  the  Inspector  in  charge.

  Lou  Dalby   Ex  Inspection  and  Test

Title: Re: BSA Sunbeam
Post by: Steve4u2c on October 22, 2007, 03:57:50 AM

Thanks for that Lou. What a great picture, o how things have changed. :'(