7 replies to this topic

[MR Simplicity 6111]

The restoration on my Simplicity 6111 has bought me to the stage of starting up the engine, which by the way is a 11hp Briggs and Stratton I/C engine, 252707, i have not yet wired up the ignition switch , etc, i am effectively 'hot wiring' it. However nothing happened, the starter motor didn't even turn over. I have checked the motor, which appears to be fine and my battery is fully charged. The battery i am using is 28Ah, is this powerful enough? Any help would be appreciated, Thanks

[MH81]

I can't tell from the couple of real pics that came up in a google image search, is that a bendix type starter?

If so, I'm apt to think you have a solenoid issue. Is it clicking in?

[Rock farmer]

Did you jump wire directly to the starter?
I wouldn't worry about the battery being big enough, so long as it has a good charge.
However, these engines have a rather cheap plastic bendex drive.
It is prone to braking apart and jamming the flywheel.
If jumping the starter doesn't produce the desired result,
You will have to remove all those sheet metal covers.
It's not really a big job.
First you can pull the spark plugs and see if you can spin the engine over by hand.
One or two hands on the screen on top of the engine should do.
The bendex drive is cheap enough. About 10 or 15 bucks here in the US!

Good luck and keep us posted!

Joe

[GTTinkerer]

Remove the small cover over the top end of the starter to check the position of the starter drive gear. Many times it will be up and engaging the flywheel. If this is the case the starter will not be able to generate enough torque to turn the engine over. Normally if you turn the engine over backwards by hand the drive gear will slide down to where it should be. If not lightly tap it with a screwdriver or punch.

As Joe said the bendix can be replaced fairly cheaply ad easily. B&S used a couple of different bendix styles so you may need to take the starter to the parts store with you.

[MR Simplicity 6111]

Did you jump wire directly to the starter?
I wouldn't worry about the battery being big enough, so long as it has a good charge.
However, these engines have a rather cheap plastic bendex drive.
It is prone to braking apart and jamming the flywheel.
If jumping the starter doesn't produce the desired result,
You will have to remove all those sheet metal covers.
It's not really a big job.
First you can pull the spark plugs and see if you can spin the engine over by hand.
One or two hands on the screen on top of the engine should do.
The bendex drive is cheap enough. About 10 or 15 bucks here in the US!

Good luck and keep us posted!

Joe

Yes, i did just have the starter wire onto the battery, bypassing the solenoid. I believe it is a bendix gear motor, but when i connect it up to the battery the gear does not shoot up to engage with the flywheel or do anything it is just motionless and it doesn't make a straining sound as if it were trying. And yes the engine is free and not jammed .

Thanks

[Rock farmer]

Too bad, that would indicate a bad starter motor.
Pull the starter off the engine and bench test it.
Put it in a vise and jump it same as you did on the engine.
Or, just put it on the ground under your foot and jump it.
If it does not spin. Take the two small bolts of the ends.
And disassemble it. Sometimes a good cleaning will get it to work.
Inspect the wires for a break. Inspect the brushes for excessive wear.

Joe

[Amigatec]

I believe all of the single cyl Briggs use the same starter.

[Rock farmer]

You do know that if you wire up the starter backwards
It spins in reverse and the bender drive will not engage.
You want positive to starter negative to ground.

Joe