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timing issue #764364
02/03/19 11:47 am
02/03/19 11:47 am
Joined: Jan 2019
Posts: 1
Scotland
J
Jennmac Offline OP
New poster
Jennmac  Offline OP
New poster
J

Joined: Jan 2019
Posts: 1
Scotland
Hi Everyone,

Have just uncovered my late husband's BSA Sloper (1931-493cc) in his garage. Started it up no bother, but it's backfiring a bit, and not running smoothly. It starts easily, but when I try to open the air throttle (?) it starts to falter then gradually dies. I got a neighbour who's a bit handy to clean up the carburettor, but this hasn't made much of a difference. He thinks it may be a timing issue, but doesn't know how to adjust it. I obviously know nothing about it myself, but wondered if there is any helpful advice out there about how to fix this? Otherwise it's a lovely bike and in good condition.

cheers

JM

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Re: timing issue [Re: Jennmac] #764389
02/03/19 5:11 pm
02/03/19 5:11 pm
Joined: Oct 2014
Posts: 96
Michigan
D
dpkreuze Offline

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dpkreuze  Offline

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D

Joined: Oct 2014
Posts: 96
Michigan
after start, have you moved the timing lever on the handle bar to the advanced position?
also, is the fuel supply from the tank fresh and flowing unrestricted?

Last edited by dpkreuze; 02/03/19 5:18 pm.

1969 Firebird Scrambler
1936 W6
1966 Bantam Deluxe
1973 Honda CB 125
1995 Custom framed S&S 96 cu in Vtwin

“An intellectual is someone who is persuaded by the evidence and who has the humility to know when he does not know something.” Sipho Seepe
Re: timing issue [Re: Jennmac] #764405
02/03/19 6:44 pm
02/03/19 6:44 pm
Joined: May 2013
Posts: 5,287
West Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Joined: May 2013
Posts: 5,287
West Yorkshire
In short there should be a long lever on the bar. If it has started ok, move this lever to its maximum position opposite to where it is now. It’ll probably go from the 9 o’clock position to 6 o’clock position or vice versa


beerchug
Re: timing issue [Re: Allan Gill] #764415
02/03/19 7:40 pm
02/03/19 7:40 pm
Joined: Sep 2013
Posts: 1,874
Pacific northwest
Q
quinten Online confused
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quinten  Online Confused
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Q

Joined: Sep 2013
Posts: 1,874
Pacific northwest
The timing is manually controlled ...
by a lever ... to more ot less match the engines RPM .

the lever , mentioned above ... probably looks similar to the longer one of these levers
On top of the handle bars . (Not the ones on the ends)
It should have a cable attached to the Magneto ...

[Linked Image]


Last edited by quinten; 02/03/19 7:52 pm.

Moderated by  Allan Gill, Jon W. Whitley 

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