Hi Lindsay welcome here.
These are my favourite slasher, nothing else made like these anymore.
As for a plug cap I think that is the least of your problems at this stage, only problem is it is hard to find a plug these days where you can screw the end off. Plug cap off any PT motor will do the job for testing purposes.
Get this motor running and you will have an amazing slasher. I have plates here to fit Honda/Briggs motors to them but I haven't had much joy using 4 strokes to them.
Just looking at the blade carrier with the oil on it could indicate the bottom seal on the motor needs to be replaced.
Where to start on getting it running is difficult to explain, sometimes I can spend countless hours working on them and still end up with a non starter for some reason, even after giving the bore a hone, new rings and seals and using one of my modified carbies that I know is working. And that has its own problems with float needles that I can spend countless hours getting a cap and needle to work.
As a rule I will spend a week repairing one of these slashers getting it ready to sell ( always the front axle and wheels are flogged out and need extensive work to get them right, plus other general things that need repairs, these machines work hard and are pushing 50 years old)
My advice is work on getting a full crank motor working on it, you can fit a PT motor to them but the hours spent in making and adapter plate and then you have the issue of having to make up a weight to fit on the crank to prevent them kicking back and breaking your fingers.
They are fixable but they take a lot of work
Sorry I just noticed you had sprayed inox on the blade carrier, so bottom seal may be ok. these bolts never give me a problem getting them undone with the rattle gun
Last edited by NormK; 18/10/24 09:07 AM.