OzVMX Forum

Marque Remarks => Spaniards (Bultaco, Ossa, Montesa etc) => Topic started by: lyle2212 on February 13, 2008, 01:32:53 pm

Title: Expansion chamber
Post by: lyle2212 on February 13, 2008, 01:32:53 pm

Can anyone tell me if the expansion chamber from a 250cc mk11 frontera is the same size as the 370cc mk11 .?

Title: Re: Expansion chamber
Post by: searbs on February 14, 2008, 09:33:58 pm

Lyle,
have a 370 mk 11 (bit dinged) can take some measurements if useful, no idea on 250 never seen 1, vic or qld dealers may help,
searbs

Title: Re: Expansion chamber
Post by: lms6201 on February 15, 2008, 06:40:11 am

very different lyle , first cone is further back and longer , pipe dia is bigger for 370 , ect ect 

Title: Re: Expansion chamber
Post by: lms6201 on February 15, 2008, 06:44:58 am

 lyle , a yamaha it 400 pipe cut to fit was used by someone i met somewhere , with a good result,might be worth a shot if u could get something like that for cheap

Title: Re: Expansion chamber
Post by: lyle2212 on February 15, 2008, 07:38:28 am

thanks guys, I,ll probably end up getting one custom made if I can,t source a 2nd hand. lyle.