Search found 1085 matches

by Roger Gwynn
Wed Mar 27, 2024 10:23 am
Forum: Two stroke
Topic: ariel leader side panel screws .
Replies: 2
Views: 92

Re: ariel leader side panel screws .

Measure the diameter of the screw x UNF
by Roger Gwynn
Thu Mar 21, 2024 9:39 pm
Forum: Four stroke
Topic: Ariel ng 1936/Carburettor Enquiries
Replies: 4
Views: 215

Re: Ariel ng 1936/Carburettor Enquiries

If the carb leaks when the engine is stopped, which is what I assume you mean, then either the float needle is not seating correctly or the float chamber is at the wrong height, which is a common problem and why these carbs are also known as 'old leaky'. An additional washer between the float chambe...
by Roger Gwynn
Wed Mar 20, 2024 10:33 pm
Forum: Ariel Talk
Topic: NH350 piston ring size.
Replies: 4
Views: 154

Re: NH350 piston ring size.

You can gap +.40 rings to suit as long as they are conventional rings, not multi piece Cords type
by Roger Gwynn
Wed Mar 20, 2024 11:03 am
Forum: Four stroke
Topic: ba clutch adjustment
Replies: 5
Views: 152

Re: ba clutch adjustment

You can easily check the dimensions of the clutch cable against those given on your invoice as 6460-33 Cable 48 1/4″ – 52 1/4″, to make sure that you been sent the right one. The correct adjuster has the recess for the cable ferule at the threaded end, not the hex end so the adjuster goes in from th...
by Roger Gwynn
Tue Mar 19, 2024 11:36 am
Forum: Main Chat Forum
Topic: Scottish Bike Show - some Ariels
Replies: 6
Views: 279

Re: Scottish Bike Show - some Ariels

The 200 Arrow includes one of the more inaccurate potted histories of Ariel, worse than most auctioneers and that is saying something.
by Roger Gwynn
Sun Mar 17, 2024 7:49 pm
Forum: Ariel Talk
Topic: '39 Sq4 exhaust conundrum
Replies: 7
Views: 197

Re: '39 Sq4 exhaust conundrum

It is one of those undocumented features, you have to trim some fins, this is correct and original!
by Roger Gwynn
Tue Mar 12, 2024 3:42 pm
Forum: Four stroke
Topic: 1938 NH rear mudguard hole.
Replies: 3
Views: 132

Re: 1938 NH rear mudguard hole.

Correct, not original, reflector not fitted until1953, dropped in 1955 as incorporated into the 564 tail light
by Roger Gwynn
Tue Mar 12, 2024 1:46 pm
Forum: For sale/wanted - Bikes
Topic: Benelli W/NG
Replies: 0
Views: 137

Benelli W/NG

I have just identified this fine machine as a post war conversion of a W/NG by Benelli, although there were others I think. It is currently languishing at Llanivet motors should anyone fancy a curio. There was an article about them in Cheval by JM in October 2012. I have a few more pics if anyone in...
by Roger Gwynn
Sun Mar 10, 2024 10:13 am
Forum: Four stroke
Topic: Noisy VH engine - Roller mains
Replies: 14
Views: 376

Re: Noisy VH engine - Roller mains

Simon - Your are correct about the FH, it is a long time since I worked on one but when the price of lipped roller bearings for SQ4 went through the roof I talked to a tech guy at a bearing specialist who told me that the lip was not there as a thrust face and if the end float was controlled by othe...
by Roger Gwynn
Sat Mar 09, 2024 6:25 pm
Forum: Four stroke
Topic: Noisy VH engine - Roller mains
Replies: 14
Views: 376

Re: Noisy VH engine - Roller mains

Not good to use the lips on rollers for end thrust they are not designed to do that, whereas ball races are. Apparently the lips are intended to act as a sort of safety net.