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Wednesday, May 13, 2009

Pro Tuning Tips For Your Go Kart Engine

By Miles Z Runeskowzer

Learning how to properly tune a small engine on a go kart is an important step in maintaining your kart. These engines, while small, can be tuned to quite a high level of performance if done correctly and with some planning. Most engines are of four main varieties, so let's take a look at them first.

The four types of engines start with the most prized, which is one of double-bearing specifications, and with a bore made of aluminum and a crankshaft featuring a roller bearing on either side. It's a little rare, though, and maybe not worth the hassle. This is because an engine with a steel bore and a twin- bearing set-up is just about as popular and useful, and it wins many races, too.

The remaining pair consists of single-bearing engines, with either an aluminum or a steel bore. All four motors, really, can be extremely competitive in racing, as long as each is built up and then tuned properly. And when tuning and maintaining a go kart engine, remember that regular oil changes help the most. After that comes inspecting and tuning up the sole spark plug. Remove and check it over regularly. Look for accumulated carbon on the electrode, in addition to any scoring on the electrode surface.

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 air filter comes next. Remove and inspect it for excessive dirt or clogged-up surfaces. Replace it if required. You can take a compressed air hose and blow out any light surface dirt from a filter that's not excessively dirty and keep using it until it is. Now it's time to check the fuel-air mix of the carburetor. Tighten the needle valve all the way down and then back it out about 2.5 turns, which should make for a perfect mix of gas and air. In-depth tuning with a timing light can be done, too. Just download a guide for doing so and follow it to the letter.

Taking the time to learn how to tune your go kart engine is important. Keeping a properly maintained and race-tuned engine up and running will help contribute to the enjoyment many people derive from racing these little motors. Perform regular maintenance and tuning schedules, though, to ensure top performance. - 21392

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