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by malcolm.johnson
Wed Feb 10, 2016 8:24 pm
Forum: Main Chat Forum
Topic: Wheel rebuild Offset
Replies: 5
Views: 1228

Re: Wheel rebuild Offset

I agree with David and always set the rim offset with/to the bike. After initial truing of the wheel/s. With the front, centre the rim to the steering head. With the rear, I always check the final drive chain line, sprocket to sprocket, first, using a taut fine string or hand held laser - it nearly ...
by malcolm.johnson
Thu Jan 14, 2016 8:41 pm
Forum: For sale/wanted - Bikes
Topic: FOR SALE : 1937 VH
Replies: 40
Views: 7358

Re: FOR SALE : 1937 VH

WOW AGAIN! I wouldn`t dare post a picture of my alleged 1947 alleged 4G, unless I had a large whiskey ready. :shock:
by malcolm.johnson
Fri Jun 05, 2015 8:28 pm
Forum: Four stroke
Topic: Wheel finishing
Replies: 12
Views: 2542

Re: Wheel finishing

I do not see powder coat to be any less grippy to the tyre bead than nice new chrome, stainless or paint. The guy who did mine does hundreds of rims, which many are not tubeless. I have never had any trouble with tyres moving on the rim whatever the finish, but having said that I am not a hard rider...
by malcolm.johnson
Thu Jun 04, 2015 10:00 pm
Forum: Four stroke
Topic: Wheel finishing
Replies: 12
Views: 2542

Re: Wheel finishing

I have had this dilemma a couple of times in recent years with rims that are not tidy, but otherwise sound, round and true. These old, but good quality rims needed sprucing up and re-chroming was discounted for the reasons already given. In the first case I had one set sandblasted and powder coated ...
by malcolm.johnson
Sun May 17, 2015 9:24 pm
Forum: Ariel Talk
Topic: Altette vibratingplate
Replies: 5
Views: 986

Re: Altette vibratingplate

I have "fettled" a few Altette horns and the vibrating plate is not flat, but pressed slightly into a crimped double disc, to allow it to vibrate. Will be interested to hear how it sounds or not? You may have to not totally tighten the case screws to give it freedom to vibrate and operate ...
by malcolm.johnson
Wed Mar 11, 2015 9:20 pm
Forum: Four stroke
Topic: BSA spokes
Replies: 5
Views: 1323

Re: BSA spokes

I always true the wheel first ie. make it round and run true. Then if I know the offset measurement, I will do that also in my jig, or alternatively fit the trued wheel into the bike and move the rim right or left, to suit the centre line of the machine coming from the headstock. With a rear wheel I...
by malcolm.johnson
Sat Feb 28, 2015 9:51 pm
Forum: Four stroke
Topic: BSA spokes
Replies: 5
Views: 1323

Re: BSA spokes

I hope I am dealing with the same 8 inch BSA single sided front brake. If I am I can help as Central Wheel Components have always supplied a couple of spares when ordering a set of spokes and I have them here in front of me to measure for you. First lets check we are talking about the same brake. I ...
by malcolm.johnson
Tue Jan 06, 2015 8:56 pm
Forum: Ariel Talk
Topic: Rear mudguard blank
Replies: 3
Views: 939

Re: Rear mudguard blank

Try RENOVATION SPARES - mudguard specialist. Advertises in Old Bike Mart. I used them for some plain c - section in steel and they were fine. Telephone 07976695435. 13 The Meadway, Redditch, B97 5AB.
by malcolm.johnson
Thu Jul 17, 2014 2:48 pm
Forum: Four stroke
Topic: Square 4 magneto problem
Replies: 1
Views: 534

Square 4 magneto problem

I have now done about 350 miles on my rebuilt 1947 4G finished some months ago. Most of the mileage has been done on steady runs of about 20 miles to bed in the newly built engine. On the last three runs the engine has begun to misfire badly after about 15 miles, especially at lower revs, leading to...
by malcolm.johnson
Thu May 22, 2014 10:01 pm
Forum: Four stroke
Topic: Calling All Mk1 Owners
Replies: 21
Views: 4304

I met exactly the same problem with my 1947 rigid teles 4G. I found that if I fitted the big kink to the right and small to left, the right exhaust fouled the rear stand and left badly fouled the clutch cover. I, in the end fitted big kink left and small right. That way the left exhaust just touches...

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