Super Bronco 16-inch 208cc 4-cycle Ohv Gas-powered Crt

What size spark plug should I use? (I do not have an engine manual.)
Experienced gardeners share their insights in answering this question :
Go to troy blit and input model number, this will tell you what you need to know

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Most of our handheld engine spark plugs should be gapped at either: A) For 28-32 cc engines, set the gap at 0.020″ (0.5 mm). B) For 38-55 cc engines, set the gap at 0.025″ (0.635 mm).
Step 5: Look to see if the spark plug is cracked, fouled, or dirty. If any of these symptoms are present, replace it with part number 79400043. Step 6: Set the air gap at 0.025 inches using a feeler gauge. Step 7: Install the new spark plug into the cylinder head.
For most racing applications, you usually want the plug gap to be between 0.020 and 0.040 of an inch. Most engine builders seem to settle around 0.035 of an inch. Factors such as the type of ignition you run, cylinder heads, fuel and even timing can affect how much gap will work best for you.
What is the correct spark plug gap for my STIHL trimmer, chainsaw, or blower? The correct gap setting is 0.020″.
Lawn Mower Spark Plug Function

Spark plugs are an essential lawn mower component that ignite the fuel-and-air mixture inside the cylinder of the mower engine. High-voltage electricity jumps the gap at the tip of every spark plug at just the right moment to trigger fuel combustion.

The spark plug gap for all ECHO products is . 024″-. 026″ or 6mm-8mm. The spark plug gap is the gap between the center and side electrodes.
Champion RJ19LM Spark Plug, 0.029 to 0.033 in Fill Gap, 0.551 in Thread, 0.813 in Hex, Copper.
Champion RJ19LM Spark Plug, 0.029 to 0.033 in Fill Gap, 0.551 in Thread, 0.813 in Hex, Copper.

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Troy Bilt Rear tine tiller model 643 Bronco, won’t start,it ran out of gas, put in new gas and it started but wouldn’t stay running. Put in new spark plugs, cleaned filters, changed out gas,still won’t start
ANSWER : Did it run out of gas when you added gas it could be that the fuel line has plugged up with something from the bottom of the tank take the fuel line off and try blowing threw it and take a air hose and blow out the carb and carb cleaner

I lost spark to the spark plug!
ANSWER : There is a magnet on the above the flywheel that creates spark. It is called the armature. This will allow you to get spark as long as your flywheel is good, but this is the most common cause besides electric start system

Wont spark changed the coil and spark plug, it has new wires. just cant get a spark when i go to turn it over. any suggestions?
ANSWER : Check flywheel sounds like keymay be broke

Need help in finding out what kind of engine and hp a troy-bilt tiller has with the serial # 31290 and model # HH60 105079E (maybe an early 1970)
ANSWER : From the #HH60 I think it is a 6 horse power,tecumse engin whith a horizontal crank shaft.

Srarting issue is the safety key to be close to gas cover lid or bac in the next position I am trying to start the machine
ANSWER : Remove the spark plug from the engine, replace the spark plug wire on the sparkplug and hold the spark plug against some bare metal on the engine, place the key in one position and turn the engine over, watch the spark plug gap closely for any spark, if there is no spark try the same procedure with the key in the other position, there should be a spark in one position or the other, wht position where there is spark is the run position. If neither position yielsa a spark try another spark plug.

I just purchased a troy bilt bronco crt tiller.

Put oil and gasoline in.

Pulled the cord. It started.

Ran maybe 15 or 20 seconds and stopped.

When I tried to start it again, the cord would not pull. Seems like the engine is seized up.

ANSWER : Remove the spark plug.  And pull the cord again.  if the carb float is stuck down or you overfilled the oil you could be hydro-locking the engine.  Check.

What is the spark plug gap for the engine of a troy bilt super bronco crt tiller
ANSWER : Go to troy blit and input model number, this will tell you what you need to know

Troy bilt mower not idling very much…
ANSWER : Turn the high screw on the carb to the left just a little