First, to rule out some more significant problem with the engine, try starting the engine with the spark plugs out, it would spin nice and fast. If not, then try spinning it by hand (should be very easy) to see if it's a starter/electrical/battery problem or a engine problem.

Assuming the engine spins well, then, if the valve train supports it, I would suggest adjusting the valves to spec.

If that doesn't help, then there probably is a problem with the compression release mechanism for the engine (whatever that may be).

 

Yup, I pulled the spark plugs, cranked with no problem, it was also turning over fairly easy by hand.

I did notice that the battery I pulled out of it is 5 years old, and only 230 CCA, which I think is kinda small for a twin.

With the 300 CCA battery that I have in it now, on the battery charger, set to quick charge for about 10 minutes, it cranks over faster than it ever has since I have owned it.

 

SOme of the modern engines work the compression release oof of the cam, and if the valves are out of adjustment it can cause this problem. They also dont like older batterys. Mine acts up the same as the battery gets older.

 

The engine seems to get stuck on the compression stroke, if I turn it by hand past the compression stroke, it will crank over just fine.

I have an older Husqvarna YTH2348 with a B&S Intek V-Twin engine.

It had the exact same problem with compression release. I had to adjust the valves. Now it's fine. Cal

 

Had a similar problem, turned out the starter solenoid was the problem.

 

Sounds like Compression release issue.

Does it totally just freeze up and no movement at all with starter? Just a click?

and if you rotate around a bit with hand, it will THEN crank engine......

 

Yes, that's exactly what it does.

I have switched to a higher CCA battery, it was 230, but is now 300, and it hasn't had any more issues.

 

I bought my GTH2654 from my neighbor before he moved. It to had the same rough time starting. When I had the bottom case off, I found out that the timing was 1 tooth off time from the factory. Now it starts up without any hesitation I took a picture for proof.