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Messages - Bess

Pages: 1 ... 14 15 [16] 17 18
226
Twins / Re: Single seat on a A65 Thunderbolt?
« on: 12 March, 2017, 19:26:17 »

227
Twins / Re: Single seat on a A65 Thunderbolt?
« on: 12 March, 2017, 09:59:17 »
Hi,
    Does anyone know where I can purchase a single seat as shown?

Thanks...

228
The Star and Garter / Re: The Star, March.
« on: 11 March, 2017, 13:17:45 »
Hi roger45,
                  Mine arrived a while back.

Best wishes.....

229
Singles / Re: WD B40 Fuse
« on: 10 March, 2017, 15:59:35 »
lol, yep forgot that...

I guess if it was a 6 volt system it equates to 32.3 amps. However, usually headlamp for a 6 volt is less and indicators are possibly not used.

230
Singles / Re: WD B40 Fuse
« on: 10 March, 2017, 15:43:56 »
Hi,
      For 12 volt my calc gives:

Boyer ignition - 21 Watt max (that's at fault level)
Coil                 -50 Watt
Headlight        - 60/55 Watt max
Stop/Tail light -21/5 Watt
Indicators       - 23 Watt each
Pilot Lights     - 4 Watt x 2
Speedo/Rev    - 2.2 Watt each

Total max 194.4 Watts. Assume horn and stop light straight from battery without fuse.

194.4Watt/12volts = 16.2 amps.. Maybe


231
Singles / Re: WD B40 Fuse
« on: 10 March, 2017, 15:15:14 »
Handlebar warmers? lol

My cals say they are giving you 420 available watts and using 10 gauge or 2.6mm cable, hope nothing develops a fault.

Best advice is to total your consumption in watts use the formula add 10% and select the nearest fuse.


232
Singles / Re: WD B40 Fuse
« on: 10 March, 2017, 13:15:16 »
Hi,

Try using this formula to calculate fuse ... Fuse Amps = Total Watts of equipment Voltage

As Arthur stated you are protecting the wiring so ensure the cable rating will be ok with the Watts consumed. Modern cables with more strands carry greater loads.

If the fuse is running close to max then it will heat, reducing its effectiveness hence blowing prematurely, glass fuses are delicate. I use automotive blade fuses as they are robust in situ.

Best wishes....

233
Twins / Re: carb jet confusion
« on: 09 March, 2017, 12:45:22 »
Hi,
    I have this document that I've been using.

235
Twins / Re: A65 Lightning carburettors
« on: 08 March, 2017, 20:28:49 »
Thanks again Arthur.

Best wishes...

237
Twins / A65 Lightning carburettors
« on: 08 March, 2017, 12:58:11 »
Hi all,
         I am the point where I need to buy carbs. Machine 1, is Oct 1968, 9:1 pistons with a  twin carb head. The other is Aug/Sept 1968  single carb head with 9:1 pistons (Thanks JulianJ for dating). Both heads have 1.598 inlet and 1.410 exhaust valve diameters.

I have looked at the manuals and services sheets and I not sure which would be the best carbs to buy, jets and settings I should adopt as I am sure I haven't got all the information. I am also aware that as time went on BSA improved fuel delivery.

Any spark plug advice would aslo be appreciated.

Best wishes.....

238
Twins / Re: A65 - Engine spacers
« on: 06 March, 2017, 18:23:28 »
I need two 68-0886's and I have managed to get one.

From your information I have decided to get a 68-0687 which should be okay as it's around 6 thou larger, a bit of fitting should do the trick.

Thanks again...

239
Twins / Re: A65 - Engine spacers
« on: 06 March, 2017, 17:50:27 »
Hi Arthur,
               Thanks....

240
Twins / A65 - Engine spacers
« on: 06 March, 2017, 16:35:07 »
Hi,

Could anyone let me have the dimensions of the following engine spacers:

68-0686 and 68-687

Thanks...

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