Saving Old Seagulls

The small oval tank is available with the fuel outlet on both sides.

Well your putting the carb from an 80cc, 50 : 1, reed valve motor onto a 102cc, 10 : 1, piston ported motor with 25% more capacity, that probably revs 30% less. What's the throat diameter of your Yam carb & which jets are currently fitted & what size Jets are available at your location & at what sor...

Bluff Southland?

Jetting you carb is not going to be easy, as it was probably used on a motor of half the ccs & with a 50 : 1 fuel mix.

You've got to keep an eye on those Kiwis, Sneaky, sort out Covid by doing the job properly, then start bastardising Seagulls, why didn't they follow our example & completely mess up our response to everything!

This really hurts, That's a very nice piece of work Cam!

How did you harden the springs?

Normally they come out as most of the locking is in the clearance void in the water pump housing where water stays & over time forms an aluminium oxide buildup which seems to work far better than Loctite, you could see evidence of it in your pics. When you replace the broken screws with new 1/4" BSF...

Try with penetrating oil & the vice grips first!

And tell us what you find.

Have you tried taking out the 2 broken screws yet?

I've been told by several friends that I wouldn't be suitable for that job, as it would just be like looking in a mirror!

Need that address Tam, I've got a couple of bricks I've been saving for you!

Where do we send the donations Tam?

I was interested in the colour of the plug electrode after prolonged use.

It's almost impossible to get a Seagull piston hot enough to cause problems, without major cooling problems!

When the mechanicals are worn out they run cooler!

Could you post pics of your boat with one of the transom with the motor on it including the prop, & both side views of the motor & the electrode on the spark plug you've been using. What fuel mix are you running & is your carb jetted for that mix? Seagulls are not famous for running hot, in fact it'...

The normal way to remove these is 2 x 3/8" BSF nuts locked together on the outer thread & soak in penetrating oil for a couple of days, then with a 3/8 BSF ring spanner on the nut closest to the crankcase try undoing in the normal direction, if it feels like you might shear the thread off, try a sma...

Could you post pictures of your lower unit & prop & do you have access to a rev counter.