Reply To: Hard to start HA 10 Johnson (1940) 2.5hp

[Monte NZ]

Thanks very much everyone for your replies!
Your experience Bucaneer re your HA ties up perfectly with mine, with the only difference being that your compression was much higher than mine. The plunger seals are the ones in the Primer that crosbyman mentioned which are also used in the TNs. and thanks crosbyman for drawing my attention to the excellent pochefamiy site……very informative!
Thanks Tubs for the video and the excellent photos……your LS-37 runs beautifully. Your comments about the rings make sense, but I am sure surprised too at the ring gap at the bottom of the cylinder.
Thanks Lloyd for your input too. Your new primer seals would be a must have going on the age of the motor. My problem there, is that getting anything by mail from your end
hopeless now, as currently there is no mail to NZ……..I mentioned recently that I am still waiting for my July issue of the Outboarder!
One point I forgot to mention, is that after that short run, I put a dose of Sea Foam through it as per the instructiions and going on what I had read on our website., but it didn’t help.
From all your comments, I think fitting new rings would be most important first step, which brings me to the next question, does anyone know what size rings are needed?
Fortunately there is a ring manufacturer about 45min drive from my home.
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Thanks once again for all your help.
Monte NZ