It sounds like the governor linkage is frozen, jammed, or out of adjustment. Locate the throttle shaft on the carburetor body, start it up, and put the engine under load. As it dies, you should see the governor link open the throttle completely up, to compensate for the lower engine speed. If it does appear to operate correctly, the problem will be carb related, probably a blocked main jet or air bleed, and should be cleaned and rebuilt.
Depends on gearing and weight, but they will run around 3600 rpm, if that helps you.
Top no-load speed is 3050 rpm.
If an 18.5 Briggs and Stratton engine is not spinning fast enough to start, it could be due to a weak battery, bad connections, or a faulty starter. Check the battery voltage and ensure all connections are clean and secure. Additionally, inspect the starter and solenoid for any signs of damage or failure. If these components are functioning properly, the issue may lie within the engine itself, such as compression problems or fuel delivery issues.
The speed of a 10hp Briggs and Stratton motor can vary depending on the specific model and application it is used for. In general, a 10hp engine can power a variety of equipment such as lawnmowers, generators, and small vehicles. The top speed of equipment powered by a 10hp engine will depend on factors such as gear ratios, tire size, and aerodynamics. It is important to consult the manufacturer's specifications for the specific equipment in question to determine its maximum speed.
120 full throttle
62MPH
about 80+ sixth gear full throttle
there should be a screw in the side of the carbuerator. turn the screw all the way in be careful not to bottom it out tight you will ruin the needle valve. then turn the screw opposite 1 1/4 times this should be good slow idle and also fast idle speed.
Go into options/frame skip/throttle and you can modify how fast the GBA runs
A modified 5hp Briggs & Stratton engine can achieve speeds significantly higher than its stock configuration, often reaching between 30 to 40 mph depending on the modifications made, such as carburetor upgrades, exhaust enhancements, and tuning adjustments. The actual speed also depends on the vehicle it's powering, gearing, and overall weight. Enthusiasts often push these engines to their limits for racing or go-kart applications. However, performance can vary widely based on the specific modifications and setup used.
faster i did a test with no upgrades and no throttle bolts
The position of the throttle(gas pedal) decides how fast the engine can turn, and the selection of gear decides how fast the wheels can turn. And how fast the wheels can turn decides how fast the car will be going. (note that this is quite simplified. Eventually the resistance of pushing the car forward will be higher than the engine can overcome, and then you won't get any more turns out of the engine, even if you try for more throttle)