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Messages - ANDY HIGHAM

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1
Singles / Re: B25SS RUNNING IN
« on: 08 August, 2019, 08:04:36 »
supermarket 20/50 oil, ride it normally, don't use low revs or very high revs. dump the oil after 100 miles then put in good quality oil

2
You can use the top tube as a datum

3
To use a Lancashire expression "That's a clog out"
Do not worry about the wheel being in the centre of the swing arm, it needs to be on the centre line of the frame and front wheel.
Tighten everything up with the wheel pushed to the front of the slots, run a straight edge down the frame and measure how far the wheel is off centre and get it central be adjusting the spokes

4
Singles / Re: 1965 C15 charging
« on: 25 June, 2019, 09:48:13 »
....And expect even more fluctuation from vibration!! For a few miles at least until the ammeter has been shaken apart

5
Singles / Re: Centre stand help
« on: 19 June, 2019, 19:43:44 »
I really never understood this obsession of gazing into the oil tank. Ok first start after a rebuild but every start up? You are just looking for a problem that may have occurred between the engine being stopped and then re started. An oil pump problem is more likely to occur when riding.
Wet sumping should not occur on most BSAs, there is a ball and spring to stop it occurring, My B31 oil tank level dropped about 12mm over the winter months, no problem, I just fired it up and rode it, the pump will clear the excess in a few seconds.

My Aprilia is also a dry sump engine with no check valve, overnight the oil will drain from the tank until the level equalises between tank and crankcase, fire it up and by the time I'm in top gear in all the oil is back in the tank

6
Singles / Re: Centre stand help
« on: 17 June, 2019, 20:45:11 »
My B31 centre stand is safely wrapped and stored, I use a side stand. I have never seen the attraction of struggling hauling a bike onto a centre stand that serves no useful purpose

7
Singles / Re: ignition on a B44
« on: 12 June, 2019, 16:48:39 »
Looking at the instructions, this is not an ignition unit. It is a Rectifier / Regulator

8
Singles / Re: carb for B31
« on: 24 April, 2019, 16:06:54 »
1) The monobloc is a smoothbore design allowing better air flow
2) The body of the monobloc is stronger and less likely to distort at the flange
3) The monobloc has a replaceable pilot jet allowing both cleaning and fine tuning
4) The monobloc does not wear out as quickly as the concentric

Remember the design brief given to Amal by BSA/Triumph was for a carb that will give good wide open BHP figures and cost less than £5 per pair
The result was a cheap and nasty carb

9
Singles / Re: carb for B31
« on: 23 April, 2019, 20:39:28 »
The monobloc is a far superior carb to the concentric

11
Singles / Re: Exhaust lifter ?
« on: 06 April, 2019, 21:00:23 »
The valve lifter on my B31 is used in a different way.
I pull the lifter lever, press the red button on the handlebar then when the engine is spinning release the lifter, the engine then bursts into life

12
Singles / Re: Exhaust lifter ?
« on: 05 April, 2019, 18:39:57 »
My Rotax engined CCM had a valve lifter and another neat feature. A little window in the cam belt cover, angled downwards about 30 degrees which aligned with the inner rim of the cam pulley. When you could see white in the window the engine was in the correct position for kick starting.
A less inteligent idea was the kickstart on the left of the engine

13
Singles / Re: DB killers
« on: 15 March, 2019, 12:47:56 »
i have found over many years of playing,  silencer with an open chamber to fool the exhaust pipe that it has reached the atmosphere works well. after this chamber an absorbtion section gives a nice mellow sound. What I have described there is virtually a Burgess silencer

14
Singles / Re: DB killers
« on: 13 March, 2019, 17:00:33 »
I have them in the Scorpion silencers on my ZZR1400, they do reduce the noise at the expense of some power (6 BHP or approx 3%)

15
Singles / Re: B40 ignition advance unit
« on: 02 March, 2019, 20:54:48 »
Normally the Boter pick up rotor completely replaces the cam/ATU

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