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JABSA #415978
01/29/12 5:34 pm
01/29/12 5:34 pm
3 Images
Joined: Sep 2008
Posts: 129
Devon, UK
Tim Lynch Offline OP
BritBike Forum member
JABSA

[Linked Image]

[Linked Image]

[Linked Image]

M20 frame, B31 bottom end, Jawa DOHC 4V head & barrel. This is the finished bike, not a photoshop image this time.
Last edited by Tim Lynch; 02/21/13 10:13 am.
6 Comments
Re: JAWBSA [Re: Tim Lynch] #417264
02/06/12 4:16 am
02/06/12 4:16 am
Joined: Nov 2001
Posts: 78
Christchurch New Zealand
L
Lew Graham Offline
BritBike Forum member
Lew Graham  Offline
BritBike Forum member
L

Joined: Nov 2001
Posts: 78
Christchurch New Zealand
Great engine conversion Tim. Are you using a Jawa crank or the B31 crank?

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Re: JAWBSA [Re: Lew Graham] #417273
02/06/12 8:08 am
02/06/12 8:08 am
Joined: Sep 2008
Posts: 129
Devon, UK
Tim Lynch Offline OP
BritBike Forum member
Tim Lynch  Offline OP
BritBike Forum member

Joined: Sep 2008
Posts: 129
Devon, UK
Crank is B31 lightened to DB32 spec. Rod is 163mm GM speedway item, piston is 90.5mm JE. It goes like stink!


1949 BSA M33
1952 JABSA 652 Sprinter
2009 Honda VFR 800
Re: JAWBSA [Re: Tim Lynch] #417327
02/06/12 5:28 pm
02/06/12 5:28 pm
Joined: May 2005
Posts: 3,655
ohio
shel Offline
BritBike Forum member
shel  Offline
BritBike Forum member

Joined: May 2005
Posts: 3,655
ohio
I'd love to hear it run.


When given the choice between two evils I picked the one I haven't tried before
Re: JAWBSA [Re: Tim Lynch] #417367
02/06/12 9:58 pm
02/06/12 9:58 pm
Joined: Sep 2008
Posts: 129
Devon, UK
Tim Lynch Offline OP
BritBike Forum member
Tim Lynch  Offline OP
BritBike Forum member

Joined: Sep 2008
Posts: 129
Devon, UK
More photos and a couple of videos are at

Flickr tdl1325



1949 BSA M33
1952 JABSA 652 Sprinter
2009 Honda VFR 800
Re: JAWBSA [Re: Tim Lynch] #417387
02/07/12 1:01 am
02/07/12 1:01 am
Joined: May 2005
Posts: 3,655
ohio
shel Offline
BritBike Forum member
shel  Offline
BritBike Forum member

Joined: May 2005
Posts: 3,655
ohio
That thing sounds wicked!


When given the choice between two evils I picked the one I haven't tried before
Re: JAWBSA [Re: Tim Lynch] #498162
07/18/13 6:50 am
07/18/13 6:50 am
Joined: Jan 2013
Posts: 130
Belgium
Julian Offline
BritBike Forum member
Julian  Offline
BritBike Forum member

Joined: Jan 2013
Posts: 130
Belgium
Very nice looking bike Tim,
Just read the mag write-up and loved it!

Regards,
Julian


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BSA Rocket Scrambler
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Norton N15CS
Triumph TR6SS
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