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by simon.holyfield
Thu Oct 11, 2018 12:02 pm
Forum: Four stroke
Topic: SQ4 Misfire
Replies: 38
Views: 1351

Re: SQ4 Misfire

Thanks Keith, there are some good tips there. The plugs are relatively new, but the bike uses a pair of VRLA batteries in parallel, which must have been there 5 years or so. I've ordered some new advance springs from Drags - if I get those in the next day or two I'll charge the batteries and see how...
by simon.holyfield
Thu Oct 11, 2018 8:50 am
Forum: Ariel Talk
Topic: Front brake plate rubbing on hub
Replies: 6
Views: 219

Re: Front brake plate rubbing on hub

I'd pull the bearings out and have a look. It's not difficult and you can make sure you have sealed bearings. In my opinion, the open bearings are too risky to use. I know I spent a while getting my front brake to operate correctly, and so will others, but twice I had it hot enough to melt the greas...
by simon.holyfield
Wed Oct 10, 2018 10:32 am
Forum: For sale/wanted - Parts
Topic: PRF Shocks
Replies: 4
Views: 158

Re: PRF Shocks

Has anyone used the Wassell/EMGO ones that Drags sell?
by simon.holyfield
Wed Oct 10, 2018 10:16 am
Forum: For sale/wanted - Parts
Topic: PRF Shocks
Replies: 4
Views: 158

Re: PRF Shocks

Excellent, thanks Vincent. So you have used the Hagon bottom shrouds, and they are of the right diameter/length to fit the Armstrong top shrouds, and you have used the Armstrong split collars with a home made adapter, right? I'm asking because I'm having the devil of a job getting the springs out of...
by simon.holyfield
Mon Oct 08, 2018 10:06 pm
Forum: Four stroke
Topic: Sq4 MkI engine rebuild-going mad
Replies: 8
Views: 319

Re: Sq4 MkI engine rebuild-going mad

Someone posted the mainshaft dimensions on here, can't be more than a couple of weeks ago?
by simon.holyfield
Mon Oct 08, 2018 3:04 pm
Forum: Four stroke
Topic: SQ4 Misfire
Replies: 38
Views: 1351

Re: SQ4 Misfire

Hi guys, new to this forum but would like to throw my two bobs worth in for safety reasons, ALL Capacitors/Condensors are rated to a specific Voltage, exceeding that Voltage will destroy the Capacitor. Generally when a Capacitor is chosen for a particular task, a Capacitors Voltage rating of twice ...
by simon.holyfield
Mon Oct 08, 2018 9:39 am
Forum: Four stroke
Topic: 46 SQ4 petrol tank drain hole
Replies: 10
Views: 260

Re: 46 SQ4 petrol tank drain hole

Leejm wrote:My 53 tank has a drain plug. There is no way on this earth it will come out!


The KH tank currently on my SQ4 also has a drain plug, near the front. It's got no crossover pipe, which is perhaps why it has a drain plug?
by simon.holyfield
Sun Oct 07, 2018 11:14 pm
Forum: Four stroke
Topic: 46 SQ4 petrol tank drain hole
Replies: 10
Views: 260

Re: 46 SQ4 petrol tank drain hole

paul.jameson wrote:... which does beg the question as to why this drain hole was fitted in the first place.


... And helps us understand why it was deleted for the next generation of tanks.
by simon.holyfield
Sun Oct 07, 2018 11:21 am
Forum: Four stroke
Topic: 46 SQ4 petrol tank drain hole
Replies: 10
Views: 260

Re: 46 SQ4 petrol tank drain hole

I thought that the tap fitted behind the mounting hole - I have a few pictures of 'barn finds' like that.

Other than that, I'm afraid I can't help. I have two '51 tanks, neither of which have drain holes.

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