16hp help

[Simplicity7013H 95]

Hello, I have a 16hp cast iron briggs that I'm trying to get going. I got it all reassembled, carb set and gas going but, the starter isn't powerful enough to spin the motor all the way thru the compression stroke. Is it just the SG or is it something else? Are these motors supposed to have a lot of compression? My 7016H is the same way but it actually starts. Lol

[Ronald Hribar 105]

I have found if belt is too tight it is harder to turn over

[fishnwiz 3,290]

Sometimes you have to roll the motor back from the compression stroke to kind of get a running start at the SG spin.

[1978Simplicity7016H 39]

Can you spin it over by hand through the compression stroke?

If it is almost impossible to turn over yet easy when the spark plug is out, maybe the Easy-Start incline on the cam is wore off.

Good that it has compression, but hopefully the compression release is working and just the belt like Ronald said.

[PhanDad 3,616]

I think your S/G is "tired"; maybe brushes or other issue causing the loss of torque.

Swap the S/G's and that should tell whether it's the engine or S/G issue.

[goatfarmer 817]

The obvious question, the battery up to snuff?

[Kenh 37]

The valve clearance has to be within spec for the compression release to work properly. I believe if the gap is too wide the CR ceases to function.

Ken

[Simplicity7013H 95]

Sorry guys, I've been away on a class trip for the past few days so I haven't been able to do any further investigation into the matter. I'll let you guys know tomorrow how it goes.