OzVMX Forum

Clubroom => Tech Talk => Topic started by: TM BILL on November 14, 2012, 02:46:08 pm

Title: Fitting Mikuni to BSA B50
Post by: TM BILL on November 14, 2012, 02:46:08 pm

My Metisse witch is powered by a modified B 50 motor is currently running on methanol via an Amal concentric carb .

I want to probably fit a Mikuni ( with choke ) and run it on petrol or Av gas .

Does anyone have any experience of fitting a Mikuni and jetting specs to start with .

Any other suggestions re carbs are welcome , the reason for not running methanol are easier maintenence and i dont have a convienient supplier .

Thanks Bill

Title: Re: Fitting Mikuni to BSA B50
Post by: Bamford#69 on November 14, 2012, 03:35:24 pm

Hi,
these specs came from a CCM, to suit my 580, given to me from Rod Spry.
runs well, but not raced yet, still waiting for more bits,no mention of air jet size or fitment so presumed a 2.0
(hi 36 mm vm mikuni jetting for 580 ccm, slide 2.5 needle 6dh3,needle jet 159 p2 ,pilot 35 ,,main 200 cheers rod)
oh yes, had to hand make an  alloy manifold to suit
cheers

Title: Re: Fitting Mikuni to BSA B50
Post by: TM BILL on November 14, 2012, 04:27:47 pm

Thanks Michael thats exactly what i needed  :)

Title: Re: Fitting Mikuni to BSA B50
Post by: Davey Crocket on November 14, 2012, 04:44:28 pm

Bill, get Brad to give you Bert Cavvell's ph number, he's the guru.

Title: Re: Fitting Mikuni to BSA B50
Post by: Bamford#69 on November 14, 2012, 08:09:33 pm

Hi,
I think Berts a bit Amal about giving his B50 secrets away,
LOL

Title: Re: Fitting Mikuni to BSA B50
Post by: Davey Crocket on November 14, 2012, 09:32:31 pm

Put the bottle down Micheal.

Title: Re: Fitting Mikuni to BSA B50
Post by: matcho mick on November 14, 2012, 10:25:40 pm

Quote from: Bamford#69 on November 14, 2012, 08:09:33 pm

Hi,
I think Berts a bit Amal about giving his B50 secrets away,
LOL

;D