Search found 3452 matches

Go to advanced search

by simon.holyfield
Thu Aug 08, 2019 6:25 am
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Re: Idle W/NG

Thanks for those excellent responses guys, that gives me some things to chew on.

One thing I don't understand - what plug in the idle screw passage?
by simon.holyfield
Wed Aug 07, 2019 11:01 pm
Forum: Ariel Talk
Topic: Another new member
Replies: 12
Views: 1690

Re: Another new member

Excellent! Welcome aboard John.
by simon.holyfield
Wed Aug 07, 2019 9:53 pm
Forum: Two stroke
Topic: leader rectifier, boffin required
Replies: 3
Views: 1299

Re: leader rectifier, boffin required

That's an old selenium rectifier, and it sounds like you may have scraped the active ingredient off!

I'd put it back together and leave it for aesthetic purposes. Wire in a modern silicon rectifier, which will last much longer. Selenium rectifiers were superceded in the 60s.
by simon.holyfield
Wed Aug 07, 2019 5:26 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Re: Idle W/NG

Hi Simes, 20 questions.. Does it die immediately when you stop, or after a period of time? Is the idle set by a cable length adjuster or via the stop screw on the carb body? If the latter, how much cable free play? Is free play affected by turning the handlebars? Does the slide easily drop to the b...
by simon.holyfield
Wed Aug 07, 2019 5:24 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Re: Idle W/NG

Here's a real question: when I set the ignition timing after the magneto was refurbed by Tony Cooper, I believe I set the timing to 3/8" BTDC per the March 1941 instruction manual i have here on my desk. Looking it up again today I noticed that the workshop manual, which has no date but must be...
by simon.holyfield
Wed Aug 07, 2019 5:21 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Re: Idle W/NG

Steven.Carter wrote:Your carb disassembling itself, :D


Quite. Last year I had another egg on face moment, witnessed by another biker who had stopped - I found the main jet sitting in the bottom of the jet cover/bottom bolt. I'd changed the jet and failed to screw it in properly...
by simon.holyfield
Wed Aug 07, 2019 3:10 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Re: Idle W/NG

Throttle slide is good - for once, I have a very good body and slide. I think the ignition timing is questionable - it seems fine on full advance, but runs very fast. Secondly, I have the throttle stop wound almost all the way in which seems wrong. It must be a year since I looked at the timing. Ano...
by simon.holyfield
Wed Aug 07, 2019 9:13 am
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2766

Idle W/NG

Folks, I need a few pointers. I've recently installed a 275 in my W/NG, a completely standard carburetter in every respect, and in very good condition. It runs and idles well. The problem I have with it is that when I come to a standstill after a run, it often dies. If i can keep it going, the idle ...
by simon.holyfield
Tue Jul 30, 2019 4:26 pm
Forum: Ariel Talk
Topic: A bit warm today-good for gearbox filling
Replies: 10
Views: 2198

Re: A bit warm today-good for gearbox filling

Looks like an icing syringe. Bet the christmas cake is going to taste a bit odd.
by simon.holyfield
Sun Jul 28, 2019 10:05 pm
Forum: Four stroke
Topic: Amal Threads
Replies: 3
Views: 725

Amal Threads

Chaps, Does anyone know what thread the cable adjusters on our pre-monobloc carbs use? It measures 0.215 x 40 tpi as far as I can see. Might it be 7/32" x 40 TPI ME? By the way, it's amazing what cr@p these old bikes will put up with. I just shook this lot out of the float chamber - bike was ru...

Go to advanced search

cron