1951 A7 BSA

[stev60]

Thanks for that its a big help, its an area im not that familiar on

[stev60]

G'day Stev,  .
Nice pick up mate. As you say a little paint, chrome and a wiring tidy up , you got yourself a ripper. Is this your 1st BSA?
My 51 A7 (with a few mods) is my favourite for 36 years.
Cheers
 Progress being made, starting too look good, running far too rich but still too look at that, manual advance was stuck but now free, new side stand bracket, the old one was welded on and in the wrong place, and a few oil leaks in the gearbox gaskets.
Steve

[muskrat]

G'day Steve.
Looks like someone has played with the kick start quadrant. It's a lot forward of where it should be. I modified my Cafe's one like that so was more comfortable with rear set pegs. Not a big deal though. Lookin' good mate.
Cheers

[stev60]

Ive tried to get it back to where its more comfortable on the quadrant but just returns, it does push back easily to where it engages Im not sure if it is the correct kick start as there was no cotter pin in it when it arrived,

[muskrat]

G'day Steve.
Your 51 should have a solid (not folding) type and at rest should be angled back as much as yours is forward. The quadrant is splined to the shaft, it can be pressed off and refitted.
Cheers

[Greybeard]

The orientation of the cotter pin makes a difference to the kickstart position, (as well). Remember your bicycling days; when you fitted the pedal cotter pin incorrectly and ended up with the bikes pedals not quite in line?

[Klaus]

This is a kickstart quadrant from a Goldstar or RGS. The flat for the cotter pin is different.

cheers Klaus

[RichardL]

G'day Steve.
Looks like someone has played with the kick start quadrant. It's a lot forward of where it should be. I modified my Cafe's one like that so was more comfortable with rear set pegs. Not a big deal though. Lookin' good mate.
Cheers

Is that a "maybe"? I think the afternarket quadrants are welded to the shaft.

Richard L.

[duTch]

 Each of the 'quadrants' that I have, have different depth cutaways for the return peg.
 I had a notion that Goldie ones are the deepest 
 Also maybe only early (Plunger) 'quadrants' are splined?
     

[RichardL]

 Each of the 'quadrants' that I have, have different depth cutaways for the return peg.
 I had a notion that Goldie ones are the deepest 
 Also maybe only early (Plunger) 'quadrants' are splined?
     

My originals for SA are splined.

Richard L.

[JulianS]

The earlier shafts were splined to take the quadrant but later ones were made in one piece. They do interchange.

The only difference between the later assemblies for forward set kickstart and normal position is where the cotter cutaway is machined.

First photo is the Gold Star RGS forward assembly and the second is the standard one. Yes the box was a bit grotty.

There were some changes in the parts in 1955 as BSA bulletin in last photo but I dot know what they were. The part numbers changed again later.

[muskrat]

I "played" with mine 
Cheers

[stev60]

All finished, a lot more issues than first thought, but its running well and starts first time, compressions are low but exactly the same ,  the performance is great.
Steve

[Billybream]

Well done, just love the plungers in black

[Greybeard]

That headlamp will dazzle aircraft!