Author Topic: Electric Starter Motor for A7 & A10 Bikes.  (Read 22960 times)

Online Sav

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #60 on: 17.05. 2022 10:55 »
Steve has a nine month waiting list for installation or four - six weeks for kit supply.

 Suits me next winter
1961 A10SR, spent a fortune at SRM
1961 A7SS, finally the right green
2011 1937 Empire Star, twin port, high pipes, 2023 off to pastures new.
2022 Gone to the dark side and bought a 1981 Honda Benly, electric leg for my old age! done 450 miles!
2023. 1972 Honda CL350 added. Another electric leg bike with a bit more oomf
White Cliffs Country

Offline S.R.McFarlane

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    • START YOUR BSA ELECTRIC STARTERS FOR A10 & A7
Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #61 on: 19.05. 2022 00:26 »
Hi John
They are available as a self fit kit the instructions have step by step pictures with captions or I can fit them at my workshop but ther is a long waiting list for me to fit one in Cardiff, South Wales
regards
Steve
1970 Rocket 3
1972 thunderbolt
1962 Super rocket
1960 RGS lookalike
DBD34
Hinkley thunderbird
Sprint ST

Offline Colsbeeza

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #62 on: 08.05. 2023 01:52 »
This might be a question for John Chaterlea.?
Yesterday I decided to change the gearbox oil from 30 grade engine oil (as BSA recommended) to Gear Oil 80-90 (both similar in viscosity), and add some slippy stuff to quieten the 3rd gear growl and hopefully to improve shift. Nothing wrong with the 30 grade - fairly new.
However, the starter motor is in the way for access to the drain plug (You'd have thought I would have thought of this before *doh*). I could get it out with much spanner work, but no finger access to get the thread started to reinstall the plug. I decided to leave it alone but add some slippy (Penrite Shift-eze 10%).
Next option is to remove the outer cover and tilt the bike over, or remove the gear indent plunger??
Any easy solutions?
1961 Golden Flash
Australia

Offline muskrat

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #63 on: 08.05. 2023 10:45 »
G'day Col.
If removing the plunger gives you enough room that would be my first attempt. Just count the threads. Bike on it's side would be even better.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline Lone Wolf

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #64 on: 08.05. 2023 21:16 »
seen some pic of the one Pearson has installed on Goldies.. looks quite neat as its a small chain to the front sprocket on the primary drive ( must have some sort of sprag clutch )



Wotcha.

There's no sprag clutch - the starter drive sprocket spins at roughly three times the crank speed.   With two chains running side by side you can guess what's likely to happen.   Twice now mine has had the starter chain snap and fly around with the clutch.  Luckily it never locked the rear wheel.

I've removed the electric start - as far as I'm concerened it's just too dangerous to be used safely on the road.  A pity really, 'cos it's a damn useful thing.
West Midlands 62 SR

Offline chaterlea25

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #65 on: 10.05. 2023 01:37 »
Hi All,
Col,
I have not looked at the problem of removing the drain plug (yet)
As Muskie suggested removing the indexing plunger might be easier?

Lone Wolf,
When I looked at the Pearson Goldie set up I did wonder about the speed the driving chain and its little sprocket shaft would do? I cannot remember now or where the sprag is on the GS set up, There has to be one
The A10 starter is gear driven and the gear spinning with the crank is not spinning at anything like speed of the GS small sprocket

I have the McFarlane starter fitted for two years now and am very happy with it
I changed the primary case oil last Friday as we were going on a trip on Saturday , It must have lost some since I last checked ??? but there was no metal in the drained oil
I filled with 10/ 40 motorcycle oil and taking a quick trip around the block felt it was running quieter ?

John
1961 Super Rocket
1963 RGS (ongoing)

Offline Colsbeeza

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Re: Electric Starter Motor for A7 & A10 Bikes.
« Reply #66 on: 10.05. 2023 04:07 »
Hi John, Thanks for the reassurance that I'm not alone and thanks Musky for you putting me on the right track.
 I have a spare gearbox which I want to go through soon. While swapping it over, I'll look at whether I can fit a 90 degree fitting to take the drain plug out to where I can access it - it would be well-protected by the starter motor. No rush yet - the Penrite Shift-eze has improved the gear changes and is a little easier to nudge it out of 1st when I stop. I took the bike out for a fast (for the BSA) 80 mile run today with the Newcastle Vintage Club. Faster than I would have normally, as there were no vintage bikes on the run - only moderns and big ones too!. It has done about 500 miles since overhaul and was a great opportunity to give it the berries and see if it would survive. It did with flying colours *yeah*. AND--- the electric starter worked a treat *yeah*.
Col
1961 Golden Flash
Australia