Identify Motor

[Grudun01]

Purchased this motor and was advised it was a 1978 Johnson 25 hp. Data plate is gone, has been thoroughly painted camo. Has electric start. Any way to tell without data plate.

 

[saltchuckmatt]

Well their close if not right. I have a 1978 35 HP and that's all close. The carb throats are a lot smaller on the 25 so that might help but unnecessary really. The I'd tag on the carb could probably confirm horsepower. You can match it up with a parts company.

Everything else tells me it's of that era.

 

[jimmbo]

It is either a 25 or a 20hp. A 35 would be considerably Different below the Cowl Pan. Bracket, Midsection, Lower Unit, and Prop

 

[saltchuckmatt]

Yes, the prop is a dead give-a-way of the lower HP.

 

[Grudun01]

Thanks everyone I will continue in that direction. It runs great, just really bad paint job. Just wanting to confirm in case have to order parts

 

[tphoyt]

It’s no guarantee but sometimes the disk that looks like a core plug can help you out with a model or ser number.

 

[saltchuckmatt]

Carb tab located on the bowl of the carburator unless someone took it off.