Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - Caulky

Pages: [1] 2 3 4
Twins / Re: Firebird oif Frame repair
« on: 06 March, 2018, 08:36:48 »
These people may help, found their ad. in Real Classic magazine:

Twins / Re: Gaskets and gasket compound
« on: 28 February, 2018, 11:47:11 »
Depends on which model and year?
I use grease on paper gaskets, blue hylomar for metal to metal gaskets and other types of gaskets.
Head gasket...nothing.

Twins / Re: Headlight bulb lighting
« on: 21 February, 2018, 17:21:08 »
If switch 11 is not switched on in ignition mode, there are no lights
The front brake switch is #12 (N) brown.

Twins / Re: Headlight bulb lighting
« on: 21 February, 2018, 11:58:45 »
My '71 A65L wiring diagram shows a 3/4? way ignition switch.
The diagram is very poor, as is the description and all of the switch innards; whoever drew this didn't have a clue.
The key ignition/light switch has 3 terminals: 1 (N/G)is the feed from the battery/rectifier. 2 is (W) ignition, flasher unit . 3 (N/G) is pilot, rear light and instrument lights.
The rotary switch on the headlamp shell appears to be #11 shown as 'Switch' description.
So, what does switch #11 do?
Answer: (position 3) It is normally open, (ignition OFF) pilot light and rear light ON. (parking/breakdown emergency lighting).
But, in position 2 just the ignition is connected via R/H handlebar switch. (W to W/Y).
The engine is now running and you need lights. Switch #11 turned on, connects a U (blue) to the N/G.
Engine running, pilot on, dipped light on, rear lights on.
You could use the main beam by flipping the flipper switch, Pilot light is always on. 

Twins / Re: What spark plug caps? (And plugs)
« on: 07 February, 2018, 10:32:40 »
I always use Champion N3 plugs because they seem to be better and that's what the book specifies.
If you are going to fit an EI ignition set-up, it depends on which type.(digital or analog).
The digital type require loaded plugs or caps.
I generally use loaded caps because any plug could be used in an emergency/plug failure.

Twins / Re: wassell power module on A65
« on: 29 January, 2018, 10:26:54 »
See this thread about measuring diode resistance:

Twins / Re: Zener Diode
« on: 27 January, 2018, 12:48:54 »
To test the zener with a multimeter, treat it as a normal diode (with connection wires removed).

I just tested a 1N4148 on my old analogue meter, about 20 Ohms in the forward mode, infinite in the reverse mode.
Use this if you have one, digital meters may give erroneous results.

Be warned, autoranging digital meters may give silly results when testing diodes on the Ohms ranges.

Twins / Re: A65 charging
« on: 06 December, 2017, 11:44:14 »
You may have cooked your battery, they do not like being over-charged. (and could cause a fire)
The zener is manufactured to limit the voltage to about 15V-ish.
When the rectified Voltage from the alternator reaches the zener cut-off Voltage, It passes current (Amps) to earth.
It gets hot, hence the heat sink.
This limits the Voltage to the battery.
i.e. say the Voltage output (without zener) is 20V, the zener needs to reduce this Voltage by 5V.
In avalanche mode, the resistance of the diode may be very small. Say 1.0 Ohms.
W (Watts) = E squared (Volts) / R (Ohms) so, 5 x 5 = 25/1.0 = 25 Watts.
W = EI so I = W/E, I = 25W / 8V = 3 1/8 Amps.
The diode plus heatsink must dissipate 25 Watts as heat. It needs a good airflow across it to dissipate this heat.

Twins / Re: A65 OIF Filter
« on: 25 November, 2017, 10:03:53 »
Wash it in a bath of paraffin (kerosene) and put it back.

Twins / Re: Head light switch for a 1971 A65 L
« on: 04 November, 2017, 14:16:07 »
This rotary light switch 31276 (19-1095) can be found here:

Twins / Re: A65 swingarm bush removal
« on: 31 October, 2017, 12:18:15 »
So, we are not talking about "swinging arm bushes"
You are talking about metalastic suspension bushes, wish I'd known before. :(

Twins / Re: A65 swingarm bush removal
« on: 31 October, 2017, 10:06:41 »
I bought a special tool, 61-6117 for my '71 A65L.
This removes and fits the bushes.
Don't know about other models/years?

Twins / Re: Oil pipes on OIF 650 1971-72
« on: 24 October, 2017, 10:29:34 »
May depend on the model, but my A65L uses 1/4" bore.
I bought mine from here:

Twins / Re: A65 Fitting a oil pressure gauge
« on: 15 October, 2017, 10:51:23 »
Put a loop on the capilliary pipe so that there's no tension on it.
Vibration is the enemy.

Pages: [1] 2 3 4