I just aquired a Johnson 15hp short shaft with the following serial no.G2622273. Can someone tell me it's age and what fuel/oil ratio I should use.<br />Regards Maurice
There should be a model # attached where the serial # is to. Then go to www.johnson.com then click on Dock Talk then go to the engine model reference guide. I could not do it by serial # alone. If it is from the 70's on then run 50:1 ratio.<br /><br />Bob
