Fuel Lawn Boy model 4250

[wirtz wiz]

I have a Lawn Boy Model 4250 that was given to me. Can you tell me what year it was made and what the oil/gas mixture for that engine is? Thanks

 

[BlazNT]

Lawn Boy 4250 - Lawn-Boy Walk-Behind Mower, 1983 (SN: B00000001-B99999999)
4250A - Lawn-Boy Walk-Behind Mower, 1984 (SN: C00000001-C99999999)

Looks like 1983
32:1