Saving Old Seagulls

Somewhere in between!
There in not a lot of difference in performance between the 3 of them. put them on your engine and have a play!

Have you tried running the engine with the prop off in the wash down barrel? (can't remember)

Seems to work for me.
What where you trying to find?

It is 28 TPI 55° 5.09mm over the high points of the threads.(on the one I looked at) I will have a look in my book and see if I can work it out better

It could be 7/32-28 BSF another way to check would be to see if a 4.60mm or #15 drill goes in the hole. I don't have one to check.

It could even be a cracked cylinder wall.

In any case take the cylinder off the crank case and have a look. You can get to the water ways at the same time.

I will measure them in the morning for you

How easy is it to take the K.G.L plug apart? I have taken a 8 Com apart that was so rusty the hex was almost gone.... Just thinking out loud, it may have been the quality and reliability of the 8 Com?

It is a nice slim gearbox. Nice find!

Now your sorry you asked!

I'm not!

That is going to cost someone!

I hope you have oil in the cylinder and crank case when you use the drill. Not something I would do!

I always like the art work on the posters! Are the girls like that on the race?(topless) I can understand it with the guys!

Do you have a spark? Sometimes the HT lead may look ok but a lot of the time that is the issue. If you don't get a cough with the engine start / wd40 / CRC or fuel in the plug hole then I put 10c on the HT lead.

After you first outing, tip the oil out into a jar and let it sit for a few days... You will see a change as the water sinks to the bottom.
Judge for yourself if you think the oil is still good put it back and top it up.

Thanks