Sick Seagull Update...

[dickh]

Thanks for all the suggestions, situation as follows - I cleaned out the carb, fuel tank etc, old plug set to .035"(approx - feeler gauges on boat...), fresh mixed petrol(checked plug lead but cannot replace as engine end is sealed) and lo & behold it started after 3-4 pulls! It was not running perfectly, idled OK but was hesitant on acceleration & high speed, seemed to prefer ½ choke. There was a small air leak at the crankcase split line, but I stopped and started it several times OK. I will check if it is still running tonight, and will strip down and lap the split line faces(or might just try Hermetite).

 

[castaway]

If its weak on pick up, its prob mixture too lean.. However on all 2strokes if there is a leak of pressure from the bottom end it will give similar symptoms.. good luck
Nick ( Is the plug gap really 35 thou ?)

 

[dickh]

Nick,
According to S-O-S (www.saving-old-seagulls.co.uk - very useful website) - and my handbook which I eventually found, plug gap is 35 thou on the early CD ignition units. I've stripped it and resealed the crankcase split line but not had a chance to test it yet(neighbour says it wakes their kids after 10.30 at night!...)

 

[castaway]

Funnily enough just buzzing back from the boat today thinking how nice it was to now have a Yamaha 2hp that always starts 1st pull..... And it stopped!!

Started and stopped a few times more, and then I rowed.... Looks depressingly just like all the old Seagul stuff.

Oh well nice while it lasted.

Nick

 

[dickh]

Nick,
Go back to a proper Seagull - you know it makes sense - Want to buy a nice refurbished Seagull?? only £65 runs very nicely now, had it running for an hour last night in the water butt - no problem.
Dickh

 

[castaway]

I already got one! It hangs on a bracket in the garage next to the Yam.... trouble is that either the Seagul has infected the Yam with some sort of O/B virus, or they have been talking...

Thing is that my SG will run for hours in the tub just like yours, but get it anywhere near the back of a dinghy and "Oh dear out with the oars"

Regds Nick

 

[jollyjacktar]

Gloating success Congrats.[NM]

.