Recent Posts

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91
Singles / Re: B40 Silencer
« Last post by Dabbist on 21 May, 2018, 16:23:58 »
Mine has a perforated tube running through with absorption packing around it. I haven't heard it yet (still in lots of bits) but I've used a similar design on other bikes. Not quiet, but takes the edge off and softens the sound a bit. You can buy perforated stainless tube and the wadding on line, so maybe you could modify it yourself.
92
Singles / B40T swinging arm bushes...
« Last post by griffo on 21 May, 2018, 15:00:42 »
  I have to change the bushes in my B40 swinging arm. Quite a bit of movement laterally so it must be done to use on roads between sections, Having never tackled this before is there any easy way to do this job ? Yes I have no doubt parentage, stress and big hammers come into a job last done 57 years ago.. All tips heeded unless a trapped finger is involved.. Thanks   ::)   Griff
93
Twins / Re: Ignition Problems A65 Spitfire
« Last post by Tim67 on 21 May, 2018, 14:03:24 »
Well, i swapped the wires to the stator around and i have a running engine again!

Can anybody explain why? I was under the impression the ignition system is a wasted spark system. ???
94
Twins / Re: Ignition Problems A65 Spitfire
« Last post by Tim67 on 21 May, 2018, 13:32:21 »
Hi, thanks for your answers to my post!

Yes i am aware that the cam turns anti clockwise and that the red dot must be visible through the hole before the coil in the direction of travel.

What i might try now is to swap the wires to the stator around (i removed them earlier), although i cannot see what difference it will make as the boyer system is - as far as i know - a wasted spark system meaning that the the spark occurs twice per cycle in each cylinder.

Will post the result of swapping the wires around.
95
Twins / Re: Ignition Problems A65 Spitfire
« Last post by JulianS on 21 May, 2018, 13:00:09 »
Suggest you refer back to the Boyer fitting instruction for your system - they are available on the Boyer website if mislaid.

With piston in correct position you need to align the red dot on the rotor with the appropriate hole in the stator plate and when started check timing with strobe light and adjust as necessary.

Make sure battery is well charged, low volts can cause problems.
96
Twins / Re: Ignition Problems A65 Spitfire
« Last post by MartinW on 21 May, 2018, 12:48:39 »
You didn't forget that A65 cam rotates anti-clockwise?
97
Singles / Re: B40 Silencer
« Last post by DON GRAY on 21 May, 2018, 11:10:36 »
My B44 peanut silencer - or as I saw on a forum post once, "loudener" is from Armours & has a very healthy bark. Gets you noticed & on a long ride you need earplugs &/or a decent fitting helmet like my Davida otherwise can be wearing after a while. Dunno what to suggest as stuffing cos it'll ultimately get blown out...sorry.... 
98
The Star and Garter / Re: MOT changes for historical vehicles
« Last post by Editor on 21 May, 2018, 10:57:42 »
Just change the 'tax class' in the blue section 7 on the V5C to HISTORIC sign it and take it to the PO. They will record it there and then, and provided its insured, tell you it is licensed from the beginning of the month. They will send the V5C off to the DVLA and you will get an updated one within about 6 weeks.
Then you can ride off into the sunset fully road legal, provided it is 'Roadworthy' of course.
Chris
99
Pre War / Re: Balancing Act
« Last post by Gtt on 21 May, 2018, 09:54:07 »
Thanks Bevan , fingers crossed
100
Singles / Re: B40 Silencer
« Last post by JulianS on 21 May, 2018, 09:39:37 »
Most silencer made for BSA 4 strokes are straight through, looking in one end you see right through and only see the central preforated tube. Any absorbing material being packed between the tube and silencer shell. Any packing you introduce will soon be blown out.

You may find a difference between slincer from different makers.

You can buy baffles, which fit in the end tube, such as this ebay item

https://www.ebay.co.uk/itm/Universal-Silencer-Insert-Baffle-1-3-8-inch-34mm-x-8-inch-WE38015/331840161432?hash=item4d43370698:g:-0MAAMXQUS

They can cause a significant power loss.

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