Here is a good one you guys to figure out.

[mystic240]

Vacuum leak?
I had a neighbor a couple of years ago that put high alcohol gas in her mower. It would run but needed to be choked to run.

 

[Scrubcadet10]

 

[Fish]

Yelp a lot of the new ones are just junk that why I keep my TB Horse in good repair.

Everyone is sold out

 

[VRR.DYNDNS>BIZ]

not enough data. 1) governed idle, 2) decompression system, 3) governor links/throttle links/governor spring or setting, 4) static governor adjustment, 5) idle stop screw, 6) carb adjustment or replace original carb, 7) combination of any of the above.

 

[StarTech]

not enough data. 1) governed idle, 2) decompression system, 3) governor links/throttle links/governor spring or setting, 4) static governor adjustment, 5) idle stop screw, 6) carb adjustment or replace original carb, 7) combination of any of the above.

1. No governed idle. Please refer to the engine IPL.
2. Yes, It was working correctly. Of I check it and adjusted the valves since it is the 793880 camshaft. I also did a leak down test while I had the rocker cover off. Rate 20%.
3. All were as intended.
4. It was fine and I never touched it before or during the final repair solution.
5. That why it would even idle at 2500 rpm. Dropping the idle stop below that would cause the engine finally die after heavily backfiring, coughing, and surging.
6. Original carburetor was replaced and mixture adjustment only killed the when fully seated. The new was even worst than original which just needed cleaning but the other shop replace the carburetor because they were too lazy to clean the Nikki.

The main problem was caused by the lousy tech that so called repaired it in the first place. It should have never left their shop in the condition that I saw when it came into my shop.

 

[slomo]

Got to be the spark plug for sure.

slomo

 

[Scrubcadet10]

Got to be the spark plug for sure.

slomo

Nah , i bet it is the drive belt.

 

[Brian - Modern Mower]

Bad cam?

Thats my guess - wiped exhaust lobe.

 

[Brian - Modern Mower]

bad ground at the coil.

 

[Scrubcadet10]

Bad reading comprehension