Sears Project

**jimh** · 12-02-2007, 05:07 PM

Got another one today,as if I needed another project. This one will have to wait til spring,but I wanted to start the thread now with pics of as recieved condition. Need an ID on the motor. It has a Sears # 143-615062. It's a 5, 6, or 7hp Tecumseh, but I don't know which. Bike seems to be 100% original and complete. Scrub brake and small jackshaft brake both still work. Throttle still works, etc. But with the build off and the Boonie ahead of it, it will have to wait, but I'd still like to ID the engine, so I can start getting the parts to rebuild it and the carb.

OldMan · 12-02-2007, 06:30 PM

jimh,

Here's a good reference for crossing Sears numbers to Tecumseh.

Tecumseh Engine Parts Tecumseh Engines

Page 11 shows your sears number:
Tecumseh Engine parts - Small Engine parts super store

The pdf file shows it to be a Tec model H50-65311H

kbs8ball · 12-02-2007, 06:47 PM

Nice looking original mini Jim.

**jimh** · 12-02-2007, 08:01 PM

I think all that's missing is the clutch cover. It even has the sticker on the top tree, between the handlebars saying it's to be rode on private property and is not to be operated on public roads, highways, streets, or alleys. To do so is unlawful.

We'll be unlawful I guess.

**delray** · 12-02-2007, 08:32 PM

jimh,without looking up id on your motor. i believe you have a 6or7hp motor on your minibike. 6and7hp carb's bolt straight on and 5hp drops like a 4hp and when you get into a 8hp the intake drops way down

tecumseh did make a odd 4hp big block that looks like a 6or7hp but kind of hard to find,also they can be found on old sears equipment? and you do have a sears number on it?4hp?????big block

................nice minibike to restore someday

**jimh** · 12-02-2007, 08:43 PM

The number came up as a H50 on the link OldMan gave me. It has to be 5,6,or 7. It has the offset motor mount plate that bolts into the bottom of the block. Some times they used different intakes for different applications. I have 3 hs35s that have 3 different intakes.

OldMan · 12-02-2007, 08:44 PM

Nevermind...

**jimh** · 12-02-2007, 08:52 PM

It looks identical to my H70. I guess I'll measure the bore and stroke to make sure. Could be a H60 or 70 With a H50 cover. They may have changed the engine and used the original cover for the throttle set up.

**delray** · 12-02-2007, 09:08 PM

i have only seen 6and7hp motors with metal plate bottoms

but it could be a odd unit

you might have to do little measuring on the bore.

**jimh** · 12-02-2007, 09:21 PM

The link shows a plate on the H50. The HS50 mounted like the HS35 and HS40
This is probably the original H50.