Re: 9.9 Johnson Carb Question

[rudderless]

My 76 head has the number 15 stamped on the top coil mount. If one cc’s the 2 different heads the older one will have less volume.

I just got my 89 head in the mail. It looks as though the thermostat pops off at high speed or lifts off the seat. I will be installing the head as soon as the new thermo arrives.

I might putty the head to check for clearance but I probably will not increase compression.

I will report on how the 89 head works..