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by simon.holyfield
Fri Aug 09, 2019 1:46 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

Hmm, still not idling happily. I have fuel in the pilot passage when I tickle.

Not sure if I should have a short or long nut?
by simon.holyfield
Fri Aug 09, 2019 8:12 am
Forum: Four stroke
Topic: spanner or socket
Replies: 10
Views: 1348

Re: spanner or socket

Absolutely. The other thing I like about box spanners is that they are very easy to modify - with an extension tube for example, and you can often store them inside each other.
by simon.holyfield
Fri Aug 09, 2019 12:19 am
Forum: Four stroke
Topic: spanner or socket
Replies: 10
Views: 1348

Re: spanner or socket

Me too, here:

http://ariel-square-four.blogspot.com/2 ... r.html?m=0

It's all too easy to spend hard earned cash on something you hardly ever use.
by simon.holyfield
Thu Aug 08, 2019 7:59 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

Is that right? I haven't looked at the weather yet.

Maybe it will give me a chance to stop this riding lark and finish the FH mudguard!
by simon.holyfield
Thu Aug 08, 2019 7:34 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

I've just finished looking at the timing. I have the spark at tdc on full retard, somewhere near 5/8" btdc on full advance. I found two things, one relevant, one not. The points gap had closed to a few thou, which by rough maths would equate to maybe 15 degrees extra retard; secondly my mag cha...
by simon.holyfield
Thu Aug 08, 2019 3:38 pm
Forum: Two stroke
Topic: leader rectifier, boffin required
Replies: 3
Views: 1295

Re: leader rectifier, boffin required

That depends on how you choose to wire it up. The simplest way is to replace the rectifier directly and make use of the voltage control Ariel designed in; an option would be to use a modern regulator /rectifier and make better use of the alternator, maybe converting to 12V at the same time. A replac...
by simon.holyfield
Thu Aug 08, 2019 2:09 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

Thanks Nev, I see what you mean now. Jet block is a very good fit in the body.
by simon.holyfield
Thu Aug 08, 2019 12:32 pm
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

I've got one of those - I'll check it out.

I guess I should be aiming for idle to be set with the ignition on the starting position, rather than full retard?
by simon.holyfield
Thu Aug 08, 2019 11:19 am
Forum: Member's Bikes
Topic: 1952 KH
Replies: 74
Views: 9899

Re: 1952 KH

We're looking forward to seeing the thread continue John! I read it all again this morning.
by simon.holyfield
Thu Aug 08, 2019 10:43 am
Forum: Four stroke
Topic: Idle W/NG
Replies: 41
Views: 2765

Re: Idle W/NG

Another gotcha on pre monoblocs is that there are 2 types of jet block nut (the big one at the bottom of the mixing chamber). I see from your photo that yours is the long type. This will lower the float level compared to the other type, which is shorter from top to bottom - thus raising the float c...

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