Search found 31 matches
- Sat Apr 20, 2024 11:51 am
- Forum: For sale/wanted - Parts, and those bits and bobs
- Topic: Square four sump filter
- Replies: 2
- Views: 220
Re: Square four sump filter
The filter is no longer available. Chris.
- Tue Apr 16, 2024 7:11 pm
- Forum: For sale/wanted - Parts, and those bits and bobs
- Topic: Square four sump filter
- Replies: 2
- Views: 220
Square four sump filter
Does anyone want a 1521-37 for the cost of postage. It came with job lot of squariel parts I bought; but mine is a Mk1. It is in good, useable condition.
- Thu Mar 07, 2024 12:35 pm
- Forum: Four stroke
- Topic: Mk2 square 4 compression test
- Replies: 7
- Views: 686
Re: Mk2 square 4 compression test
Hi David. A compression test on my Mk1 last year, with original standard 6:1 pistons and freshly honed bores got me 100 psi on two cylinders and 105 psi on the other two. After 400 miles this rose to 108 on all cylinders. It runs really well. I would expect the Mk2 to be a bit higher. Yours seems to...
- Tue Jan 02, 2024 4:58 pm
- Forum: Four stroke
- Topic: Oil pump query
- Replies: 10
- Views: 1221
Re: Oil pump query
Hi Bevan. Could you post the dimensions of your oil pump. Plunger lengths and diameters in particular. I have a small collection of 1950's plunger pumps, and there is a small possibility that yours is amongst them. Cheers, Chris.
- Tue Dec 12, 2023 10:25 pm
- Forum: Four stroke
- Topic: sq4 solex-bi-starter
- Replies: 39
- Views: 1420
Re: sq4 solex-bi-starter
Here is another one
- Tue Dec 12, 2023 12:31 pm
- Forum: Four stroke
- Topic: sq4 solex-bi-starter
- Replies: 39
- Views: 1420
Re: sq4 solex-bi-starter
I use Mikuni for the main jet, 120 with a 5mm thread; and the air correction jet 150 with a 6mm thread. There may be other jets that will fit or could be adapted to fit, but my experiments have not gone that far yet.I have found genuine Mikuni jets to be very accurately made, unlike some of the genu...
- Mon Dec 11, 2023 2:15 pm
- Forum: Four stroke
- Topic: sq4 solex-bi-starter
- Replies: 39
- Views: 1420
Re: sq4 solex-bi-starter
For anyone interested; I have found that TePe [blue] interdental brushes, used with carb cleaner, will clean all jets and orifices in the 26 AHD except the pilot [70] which is too small, without causing damage.
- Tue Nov 21, 2023 2:46 pm
- Forum: Four stroke
- Topic: Square four carburettor
- Replies: 4
- Views: 634
Re: Square four carburettor
Hi Malcolm. One of my winter projects is to build a 26AHD. I have the main body parts; missing, jets, float, etc. I have discovered that good parts are very hard to find; and expensive. However, I'm hoping it will be in useable condition by early next year. If you haven't found one by February, cont...
- Sun Nov 19, 2023 11:57 am
- Forum: Four stroke
- Topic: Pistons for iron SQ4
- Replies: 9
- Views: 1631
Re: Pistons for iron SQ4
There is one pair of 600cc; +60 NOS pistons on Ebay right now.
- Fri Nov 17, 2023 12:50 pm
- Forum: Ariel Talk
- Topic: My heirloom '53 Square 4 Mk II: Help Needed
- Replies: 13
- Views: 1574
Re: My heirloom '53 Square 4 Mk II: Help Needed
Hi Evan. I see that your bike has a downward pointing rear brake arm. This has proven to be dangerous, Mine was the same before I modified it; and yes it is dangerous. Forewarned by an explanation on the Draganfly website, I applied the brake hard at low speed. The brake locked solid, and would not ...