Author Topic: kickstart pinion /bush clearance  (Read 292 times)

Offline oldbikerbill

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  • 1954 Bsa A10 Plunger. Located outside San Diego,
kickstart pinion /bush clearance
« on: 17.10. 2016 23:25 »
I've been having some difficulties with my kickstart lever crashing to the floor when I use it.  The pinion gear and ratchet both look good and I bought a new bushing from Klempf's, but when I put the pinion on there seems like a lot of wobble.  Does anyone know what the clearance between the gear and  the bush should be?  I tried to find an on line workshop manual but no luck.  Thanks 
Bsa A10 Plunger, '72 Moto Guzzi Eldorado,'73 Bmw r75/5

Online muskrat

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Re: kickstart pinion /bush clearance
« Reply #1 on: 18.10. 2016 09:28 »
G'day Bill.
There were some dodgy pinions going around a while back and needed a bigger bush (I got one). I complained and a new larger bush was sent. It was a while back and I can't remember who the supplier was. If I had to make one I'd give it 1+ but no more than 2 thou".
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline BVSR

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Re: kickstart pinion /bush clearance
« Reply #2 on: 18.10. 2016 12:02 »
Hello Bill,

Pre 1954 and later gearboxes has different ratchets and bushes. The teeth profiles are different and early bush outer diameter is bigger than lateĀ“s. Check that You have the right bush. Most British and U.S. dealers do not know the difference but in the Continent they do:

http://www.degroot-bsa.nl/index.php?route=product/product&path=51_60&product_id=751

Cheers Markku
Markku
A7 1961    A10GF 1954    A10GF 1960    A10GF 1961 sidecar    A10SR 1958    A10SR 1959 
A10SR 1960   A10SR -61  A10SR 1963    A10SR 1963   A65T 1968    A65L 1968   B25SS 1971    B31 1952  
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