Size of Main Jet

[chuter]

Working on a Zenith carb for an Atomic 4 inboard but it has no main jet. The original part number for the jet, according to the parts list, is 290552 which seems to be no longer available from some usual suppliers. I have lots of jets that would fit but I don't know what size 290552 is. Can anyone help? What size is the main jet? Thanks,

 

[Bondo]

Re: Size of Main Jet

Working on a Zenith carb for an Atomic 4 inboard but it has no main jet. The original part number for the jet, according to the parts list, is 290552 which seems to be no longer available from some usual suppliers. I have lots of jets that would fit but I don't know what size 290552 is. Can anyone help? What size is the main jet? Thanks,

Ayuh,... Welcome Aboard,... I've never seen yer motor, or it's carb....

I'd Guess the last few digits of the number might be a dimension,...
Maybe not...

What I'd probably do is,... Just throw 1 in, 'n Try it....
You can figure out which way to go, from there...

 

[Tahorover]

Re: Size of Main Jet

61 Series carb #54?