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Good to know, thx much. I will check the manual to see if there is a flow measurement. One test I wanted to do with the 16 was set up a gravity fuel feed to see if it would run wo choke. Understanding now some of the different pumping capacities, it may have proved or disproved fuel delivery...

Again I catch myself calling my problem child a CV when in fact it is a CH. Anyway just wanted to update everyone and many thanks for all the suggestions. Sorry I can’t tell you what it is that does not allow my Kohler CH16 to run without the choke partially on but I can tell you what it...

With all that's been done with the carb I think it can be eliminated as the culprit. I would guess the gas "spitting" is for some reason expected on this engine and that's why the air filter assembly includes a "spit cup" as it's called to catch the gas. I didn't check the flywheel pin...

Just monitored, no clue where the valve timing is at but both lifters move the valves the same, .338" travel

Yeah leakdown at TDC so both valves are closed, didn't have the monitor but at least could listen for air to escape. I'll could check the valve movement but don't know what to expect with the ACR, I thought it opened the exhaust valve early. (?)

It does I agree but I think I been barking up the wrong tree, I feel like I'm back to square one with my original question; What does a rich mixture help overcome and allow it to run? Here's one more thing I kind of forgotten about, after the first go around replacing most of the fuel system...

Well I guess it's not the carb, got the OEM unit today and it did not do any different, in fact it appear I had to hold the choke closed a bit more for it. I also noted sometimes a spit of gas out the carb. When I removed the spark plug also noted that is was black and carbon coated, engine...

Sorry just first saw this response. 1. - Kill wires pulled, first 2 coils went bad possibly bad SAM, upgraded to new CD ignition system. 2. Have to remove the engine to check, don't feel it's pertinent at this time 3. Carb is on the way 4. May apply after I install new OEM carb. 5. Head...

Just a thought, although the fuel pump was tested be free flow at the carb, I wonder if it could have a problem when it's pumping to the carb with the flow restriction and higher pressure? This is a new fuel pump so I wouldn't expect that kind of problem. Not sure what the dead head pressure...

Guess that wasn't the best reply regarding the carb, frustration carryover, better would have been no adjustment would allow running without the choke on either carb so I don't believe there is clog. It did responded about the same with 2 separate carbs. I would like to try your valve test...

I did try a different spark plug that came with one of the carbs but I didn't check the manual for the recommended plug, I will now. Doesn't seem like anything I have done with the carb, pilot screw included, has change how it runs. I have in the past started at one turn out and just kept...

Got the new ignition installed and tested the reworked carb (slightly reamed main jet and raised float level) but still running lean, at idle and throttled up. Could it be a valve problem????? The compression was low but wrote it off questioning if it has ACR.

Thx for your patience but this thing just keeps beating me up, before the reworked carb got full of gas the ignition stopped firing again, same symptoms; one spark the second I start cranking and sometimes a very weak one after I stop the starter. Though it could be a weak battery this time...

One more thing, my apologizes to all - for whatever reason I still call this a CV but it is horizontal. The guy I bought it from said he had cut grass with it 6-8 months prior. The carb was water damaged so bad the throttle plate shaft was rotted off at the bottom, obviously it wasn't used...

One more thing, my apologizes to all - for whatever reason I still call this a CV but it is horizontal.

I straighten and rebent the spring ends, had to move the throttle plate all the way and then set the spring in holes farther apart, no doubt need some tweaking once I can get the engine to run BUT still running lean, needs some choke to keep running. Just to recap in regards to the fuel/lean...

Thought it would be a waste of time swapping coils again but replaced the recently installed new coil with another and now have fire, actually that cd ign supplies a pretty good spark. Anyway still need to run with the choke so neither the ignition nor the fixed carb float level cured the...

Yes it is one of the Ebay carbs and it did have an issue with the float jet but I think I have that taken care of. Before I could try it the ignition failed and that appears to be a problem with the SAM which was replaced earlier with a used unit, didn't get away with that either. The fuel tank...

Received the brand new ignition module today and it cold checks exactly the same as the one that is on the engine, I'll swap them just in case but I guessed not the coil. Believe this engine has the DSAM so when I find and receive one I'll try it and see where we're at. Be advised different...

Sounds like a plan, thx.

I'll check the rod when I get it to fire. Thx

Yes I found the seat problem as well and corrected it so the float was parallel, but before I could test with the adjusted carb the ignition died. I' ll get back on it when I get the coil next week.

That's right, one test I did was remove the rubber stopper, didn't have a bolt short enough to replace the solenoid with. Right now I'm working on the ignition problem waiting for a new coil to get here. Not all that convinced it's the coil even tho it did not cold check properly. Because the...

It rained today so I spend some time poking around in that ignition ckt. I think the page number you referred to is from a manual for a newer model, it referred to the RMC which is not on mine. It has the “Smart Spark” as they refer to it or the SAM module and no RMC unit. My manual only has 116...

It will be a few days before I get on it but I will. Thx

Looks like another problem to chase down with the ignition. Battery is charged, voltage doesn't drop more than a couple volts cranking the engine with the plug out (measured at the battery), should be ok for the SAM. What is interesting though is it will spark once when I first start cranking...

Info you requested and an update; Cub Cadet Model 2166 - 13A-214G100, Mfg Code 1B182G30149 Carb PN KH-12-853-93. (I have the carb with the adjustable idle jet) I did check that carb out and found the float level was way low. When the float valve seat was installed into the casting it wasn't...

Thanks for your attention Mark. I do have a service manual and been thro it, sorry is a horizontal shaft, my mistake. I didn’t want to be to detailed originally but let me add this to the mix. I did have a new carb for this engine that was installed after the work in the fuel delivery system...

Engine will die in seconds if the choke is opened completely, cold or warm. New carb, carb shutoff bypassed, new filter, new pump, replace fuel line, new head and manifold gaskets, fresh gas, new spark plug, will only start with full choke even when engine is warm. The guy I bought this cub...