Search found 4791 matches

by Charles uk
Tue Nov 24, 2020 12:09 am
Forum: Help
Topic: gearbox identification
Replies: 4
Views: 601

Re: gearbox identification

Could it be an earlier one H-A, single water inlet holes, long pinion shaft, but no oil nipples, can't remember if any of the AC's ever ran oil.
by Charles uk
Sat Nov 14, 2020 4:40 pm
Forum: General Topics
Topic: Seagull refueller
Replies: 10
Views: 508

Re: Seagull refueller

I've never seen that style before, though I do have a 20 litre red remote steel tank with enough of a water slide transfer & fuel mix to show that it was sold by Seagull about that time.

Nice find!
by Charles uk
Thu Nov 12, 2020 1:49 am
Forum: Events and Racing Seagulls
Topic: Building a “racer”
Replies: 12
Views: 1005

Re: Building a “racer”

Jennings is considered better than Bell even though it's earlier. Or try Motorcycle Tuning two stroke, John Robinson. Two-stroke Tuning, Roy Bacon. The Two Stroke Engine it's design & tuning, K. G. Draper. Two-stroke High Performance Engine Design & Tuning, Cesare Bossaglia. The High Performance Two...
by Charles uk
Wed Nov 11, 2020 12:32 am
Forum: Events and Racing Seagulls
Topic: Building a “racer”
Replies: 12
Views: 1005

Re: Building a “racer”

I've never seen a Minimax that weighted less than 60 lbs, you might get one down to 35 lbs if you use carbon composite but that could be 3000 euro plus, if you did all the work.

See if you can find somebody with one that you can test drive in Holland.

Whose the author of your two stroke book?
by Charles uk
Sun Nov 08, 2020 1:48 pm
Forum: Events and Racing Seagulls
Topic: Building a “racer”
Replies: 12
Views: 1005

Re: Building a “racer”

Your weigh will also make a difference. Look on the Kiwi sites for a boat called Microgull a shallow V bottomed speed boat with a windscreen, black hull yellow deck, that weighted less than 40 lbs before painting, 6mm ply below waterline 4mm above. The carb has to suit the complete inlet tract! Bria...
by Charles uk
Sun Nov 08, 2020 10:46 am
Forum: Events and Racing Seagulls
Topic: Building a “racer”
Replies: 12
Views: 1005

Re: Building a “racer”

Before you start on your Minimax, have a look on the New Zealand Seagull racing web sites , they race in water conditions similar to yours which are very different to the open sea in Bermuda. In NZ only Pirate Pete uses a Minimax & he uses a 5R on the back, but he does post films. Have a look at you...
by Charles uk
Fri Oct 30, 2020 11:02 pm
Forum: General Topics
Topic: Pair of 102s
Replies: 3
Views: 446

Re: Pair of 102s

Check your HC it should have another letter in front of HC.
by Charles uk
Tue Oct 20, 2020 4:41 pm
Forum: General Topics
Topic: Disassembly of a stuck Forty Minus SJM
Replies: 16
Views: 2575

Re: Disassembly of a stuck Forty Minus SJM

The piston is too low in the bore to move it far with the grease nipple method.
by Charles uk
Wed Oct 14, 2020 8:07 am
Forum: General Topics
Topic: QB series
Replies: 6
Views: 991

Re: QB series

Check the jet in the 418, if it's fitted with a 100 it's been removed from a Curlew where the 418 was the standard carb.

But if it's wearing a 110 jet, there's a factory fit possibility.
by Charles uk
Sun Oct 11, 2020 6:44 pm
Forum: General Topics
Topic: Code question
Replies: 3
Views: 668

Re: Code question

If you look closely at the WO Ed, they are not the same font as the SJM, which to me would imply that they were not stamped at the same time as the serial number, possibly they represent the owners initials.

SJM 324 = 55-56 forty minus.
by Charles uk
Sat Oct 10, 2020 3:46 pm
Forum: Help
Topic: help Silver Century/90/Osprey dyeing
Replies: 11
Views: 900

Re: help Silver Century/90/Osprey dyeing

Between 1937 & 1994 circa 1,000,000 Seagulls were produced, allowing for the ones that were exported, would leave you with around 1 Seagull produced for every 100 members of our population! Have a walk around your local boatyard & ask all the staff how many Seagulls they have in their sheds? Then pu...
by Charles uk
Sat Oct 10, 2020 1:33 pm
Forum: Help
Topic: help Silver Century/90/Osprey dyeing
Replies: 11
Views: 900

Re: help Silver Century/90/Osprey dyeing

A 25:1 main jet has the smallest size hole of all the jets, as the fuel with the least oil content has a lower viscosity decreasing the oil content of your fuel mix will make your current jet pass more fuel, is that what your trying to achieve? Remember your Seagull is close to it's 50 birthday & yo...
by Charles uk
Sat Oct 10, 2020 11:57 am
Forum: Help
Topic: help Silver Century/90/Osprey dyeing
Replies: 11
Views: 900

Re: help Silver Century/90/Osprey dyeing

You have as never-outbored says a Silver Century, which should have an Amal twin jet 46N carb which has as the name suggests 2 jets. The jet you've given us the size from, was the economy jet & they are all size 25, the important one that we want the number of & corresponds with the fuel mix, is the...
by Charles uk
Sat Oct 10, 2020 9:10 am
Forum: Help
Topic: help Silver Century/90/Osprey dyeing
Replies: 11
Views: 900

Re: help Silver Century/90/Osprey dyeing

Your serial number will help to identify exactly which model your talking about.
by Charles uk
Thu Oct 08, 2020 9:50 pm
Forum: General Topics
Topic: QB series
Replies: 6
Views: 991

Re: QB series

I've had 3 Seagull 5's (Osprey) only one had a 420 the other 2 had a pumped 416 4 which takes the larger needle valve

It's a very easy upgrade to get a bit more ooomph!