help on a 45hp chrysler

[warlordxx]

mod 459h9h
ser 2738
I need to find the year and oil mix for this motor and what plugs I need to use

Thanks
War

 

[eurolarva]

Re: help on a 45hp chrysler

Motor is 1979. Gas mix is 50 to 1 and the plug is UL-4-J which are no longer made. Champion plug site recommends a UL81C as a cross