Author Topic: A7/A10 Dual Carb Head with Conversion  (Read 325 times)

Offline ghl

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A7/A10 Dual Carb Head with Conversion
« on: 24.10. 2018 13:53 »
I have also posted this on the BSA Owners Club forum but since realised that this forum has more users and guests so thought I'd repost here as well...

Wondering if anyone can shed some light on one of the spares my Dad had squirrelled in his garage. It is a twin carb cylinder head (part number 67-1102) that I think is off an early A7SS or similar that I think he'd bought from an autojumble in the 70's or 80's.

The only strange thing about it is that it has a 'conversion' part attached to it stamped up with MEL-SPEN CONVERSION on the top and BSA-A10 on the bottom. See attached photos.

Can anyone give me a clue about MEL-SPEN, if they've seen anything like this before or any info. I've searched the web but can't find any reference to MEL-SPEN at all.

Offline duTch

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Re: A7/A10 Dual Carb Head with Conversion
« Reply #1 on: 24.10. 2018 19:01 »

 Looks a bit like the creation Sluggo had for sale *dunno*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy

Online muskrat

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Re: A7/A10 Dual Carb Head with Conversion
« Reply #2 on: 24.10. 2018 20:21 »
G'day ghl.
I haven't seen that one. Splaying the carbs Trihard style would have it's advantages depending on the style od bike. Mine are just straight out but with two left hand carbs it's a bitch to adjust the right pilot screw, would be easier with splayed carbs.
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Muskys Plunger A7