Tuning your go kart engine is very important in keeping your go kart running at optimum levels. Even though these engines are small, they’re all packed with performance for their size. Take some time to plan out a regular tuning and maintenance schedule, though. And remember, there are four main types of these motors.
Go kart engines are divided into four categories. The most prized is an engine with an aluminum bore and two roller bearings. There’s one bearing on each side of the crankshaft. It’s fairly difficult to find, though, and probably not worth all the trouble it would take to find and then tune. The second type, a double-bearing steel bore is equally as popular. These two engine types win a lot of races.
The last two engines consist of engines of either aluminum or steel bores and a single roller bearing next to their crankshafts. Any one of these four engines can be very competitive if they’re built up properly and then tuned correctly. As for tuning, keep in mind that the most important activity – after regular oil changes — is the inspection and care of the single spark plug. Remove and inspect the plug on a scheduled basis, taking care to examine the electrode for signs of carbon build-up and any burnt or scored surfaces.
Always check the distance between the plug tip and the electrode. Usually, the gap will need to be between.025 and.030, according to engine specs. Take a gap tool and space it out or close it in, if necessary. After that, insert it back into the engine and then go over the plug wire’s surfaces for cuts or abrasions. Any damage to the wire can cut down on top engine performance.
The next step is to remove and inspect the air filter, and replace it if it’s too dirty or clogged. If not, just take a lightly-powered compressed air blower and blow it out. It’s also important that the fuel-air mixture going from the fuel line into the engine’s carburetor be adjusted. Just use a screwdriver to adjust the needle valve in the carb. Tighten it in a clockwise direction until fully down and then reverse it for 2.5 turns. After that, most other tuning will revolve around using timing lights to determine bottom and top dead center on cam rotation. Just download a guide on how to do so and go from there.
Tuning racing go kart engines is a simple enough process, and can deliver increased performance if done regularly and correctly. Follow a regular maintenance and tuning schedule for these engines, which usually means tuning at least yearly, if not twice yearly. For engines used for serious racing, do this more often.
By qimono from Pixabay