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by simon.holyfield
Wed Sep 18, 2019 7:34 pm
Forum: Main Chat Forum
Topic: Lathes
Replies: 12
Views: 338

Re: Lathes

Poor guy. 53 is no age, he should have had another 40 years enjoying that workshop!
by simon.holyfield
Tue Sep 17, 2019 9:05 pm
Forum: Four stroke
Topic: Square 4 MkI - too lean or too retarded?
Replies: 11
Views: 177

Re: Square 4 MkI - too lean or too retarded?

I'd assume it was advanced, from that colour but it is hard to tell.

I will say though that I don't find it very easy to fine tdc on my bike.
by simon.holyfield
Tue Sep 17, 2019 8:28 pm
Forum: Four stroke
Topic: Square 4 MkI - too lean or too retarded?
Replies: 11
Views: 177

Re: Square 4 MkI - too lean or too retarded?

I'd check the ignition settings. I use B6HS and they are much darker than that.
by simon.holyfield
Tue Sep 17, 2019 3:39 pm
Forum: Ariel Talk
Topic: Tyre age
Replies: 5
Views: 179

Re: Tyre age

Change it. Its never worth the risk, and you will be amazed at the difference new rubber makes to your riding. Recently I took delivery of a 1978 CX500 with tyres fitted in 1998 - I rode it home, thankfully in the dry. Tramlining is terrible, and they would be lethal in the rain. They are off now, w...
by simon.holyfield
Mon Sep 16, 2019 10:28 am
Forum: For sale/wanted - Parts
Topic: air filter rubber
Replies: 6
Views: 159

Re: air filter rubber

Do you have them for FH as well Adrie?
by simon.holyfield
Mon Sep 16, 2019 9:25 am
Forum: Main Chat Forum
Topic: Lathes
Replies: 12
Views: 338

Re: Lathes

I'd echo Mick and Bob's comments. I've used my mini lathe a lot over the year or so that I have had it. They are very useful for all sorts of small jobs, just like the bench grinder or pillar drill - some things are just easier if you have a lathe, and you can make countless fasteners, spacers etc. ...
by simon.holyfield
Sat Sep 14, 2019 11:29 pm
Forum: Ariel Talk
Topic: Simes' FH Rebuild
Replies: 200
Views: 12491

Re: Simes' FH Rebuild

Today, I have been mostly making bits of mudguard... Sorry it has been so long since I updated this post, but life gets in the way. I've had a couple of VMCC Machine Exams to do (chalk and cheese - a 1929 Scott TT replica and a 1971 Garelli step-thru), a new grandson, a CX500 has joined the stable a...
by simon.holyfield
Wed Sep 11, 2019 1:02 pm
Forum: Main Chat Forum
Topic: Really Jim..
Replies: 9
Views: 439

Re: Really Jim..

Didn't I read somewhere about the gyroscopic effect as you move your head?
by simon.holyfield
Wed Sep 11, 2019 8:40 am
Forum: Ariel Talk
Topic: QD hub dismanteling
Replies: 11
Views: 931

Re: QD hub dismanteling

I've seen the spot welds on one of mine. Would you design them with just an interference fit there?!
by simon.holyfield
Tue Sep 03, 2019 8:12 pm
Forum: Four stroke
Topic: Sq4 MKI timing case breather
Replies: 10
Views: 875

Re: Sq4 MKI timing case breather

Gui.dorey wrote:It’s definitely larger than 1/4”. I don’t think I can get a caliper in there, though. I believe it’s 3/8” but I wanted to be sure before trying to disassemble it.


I think it's a pipe thread. The 1/4 relates to the size of the pipe it connects, not the OD of the thread.

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