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Kommandokenny
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best way to set the timing on 1965 a65 #316329
06/01/10 6:35 am
06/01/10 6:35 am
Joined: Sep 2009
Posts: 144
Sydney Australia
busy Offline OP
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busy  Offline OP
BritBike Forum member
Joined: Sep 2009
Posts: 144
Sydney Australia
i'm removing the old points on my bike and replacing them with a pazon
ignition whats the best way of getting TDC
I bet someones going to tell me to adjust the primary chain and check the valve
settings first !!

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Re: best way to set the timing on 1965 a65 [Re: busy] #316332
06/01/10 7:04 am
06/01/10 7:04 am
Joined: Jan 2009
Posts: 64
Finland
FinBSA Offline
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FinBSA  Offline
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Posts: 64
Finland
U donīt need to know TDC when u install Pazon. I think you have the full advance mark (spike) in primary cover which is lined up with alternator rotors marking and then you line up pazon rotors paint dot with pickup plates anti-clockwise hole.
Or is there full adv mark in 1965 model? At least in 1969 model there is.


Last edited by FinBSA; 06/01/10 7:23 am.

BSA 650 Lightning `69
Re: best way to set the timing on 1965 a65 [Re: busy] #316333
06/01/10 7:11 am
06/01/10 7:11 am
Joined: Dec 2004
Posts: 9,129
Scotland
kommando Online content
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kommando  Online Content
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Scotland
No wink , buy or make a piston stop that screws in a sparkplug hole, mount a degree wheel on the crank semi loose and then find the forward and reverse stop points and move the degree wheel so they are at equal degrees on the scale, in between at 0 is TDC. Lock the degree wheel to the crank and recheck, now remove the piston stop and move the crank to your fully advanced timing point and make a mark that a pointer can be mounted near on the rotor. You can now strobe your engine with the primary cover off.

Finbar, 65 Primary covers have no timing cover to use so you must make your own arrangments, TDC is the first point to measure.

Re: best way to set the timing on 1965 a65 [Re: kommando] #316361
06/01/10 12:38 pm
06/01/10 12:38 pm
Joined: Sep 2009
Posts: 144
Sydney Australia
busy Offline OP
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busy  Offline OP
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Sydney Australia
HI kommando
thanks as usual (this is a great forum)
when you mean a piston stop that screws into the spark plug hole
do you mean one of those TDC tools that screws into the spark plug hole ?
and what is the fully advanced timing point (degrees) for my 65 a65

Re: best way to set the timing on 1965 a65 [Re: busy] #316377
06/01/10 1:39 pm
06/01/10 1:39 pm
Joined: Sep 2002
Posts: 7,812
Seattle
Alex Offline

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Alex  Offline

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Seattle
Take an old spark plug, cut off electrode, bust out the ceramic, thread with a 3/8 tap (10 mm works, too) and thread in an appropriate bolt.


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Re: best way to set the timing on 1965 a65 [Re: Alex] #316384
06/01/10 2:32 pm
06/01/10 2:32 pm
Joined: Dec 2004
Posts: 9,129
Scotland
kommando Online content
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kommando  Online Content
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Posts: 9,129
Scotland
As Alex says for the piston stop, I use a piece of wooden dowel epoxied in instead of a bolt. Don't have an A65 so don't have the timing data.

Re: best way to set the timing on 1965 a65 [Re: kommando] #316454
06/01/10 7:19 pm
06/01/10 7:19 pm
Joined: Jan 2009
Posts: 64
Finland
FinBSA Offline
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FinBSA  Offline
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Finland
Full advance for A65 would be 34 degrees BTDC.

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BSA 650 Lightning `69

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