Effective Ways to Overcome the Rough Satria Fu Machine Sound

Cara Ampuh Mengatasi Suara Mesin Satria Fu Kasar
Source: otofrend.imamdeveloper.my.id

Otofrend - Noisy engine noise not only disturbs us as drivers, but can also annoy other motorists. Moreover, this happens to a typical Ayago like Satria FU, surely FU's big name will be tarnished. (people who see it will say "the motorbike is good, how come the engine is klotok-klotok")

Usually the symptoms of this rough engine appear at all RPMs, but some motors will feel it when they touch 7000 RPM and above. This is not without reason, the higher the engine speed, the faster the engine components interact (rub together). So that the resulting sound also becomes louder.

However, the engine has provided a lubricating system that will lubricate all engine components so that the friction that occurs does not cause friction or friction. But still there are machines that still make a rough sound even though the oil has just been changed.

So why is that so? In this article, we will discuss some of the causes that can lead to noisy engine problems along with how to handle them, see the reviews below.

Causes Suzuki Satria Engine Rough

There are many things that cause a rough engine sound, it is because the engine components are made of metal. On the Suzuki Satria, some owners have detected the rough sound issue arising from the following.

1. Lazy Timing Chain

The timing chain or often also called the keteng chain is a steel rope that connects the crankshaft and the camshaft. Its function is so that the valve can open and close properly. The name of the chain made of iron, must have tenacity, especially if exposed to heat periodically.

This is what causes the chain to gradually expand. This expansion not only makes the valve opening slightly disturbed but also makes the sound noisy.

Just look at the chain of your motorcycle wheel, if it is delayed, the sound will definitely be erratic. This also applies to the engine chain link.

But the keteng chain is located inside the machine, it's small too, why can you hear the sound?

It is true, the timing chain does have a smaller shape than the wheel chain. But the engine speed can reach 5,000 RPM when hot, so it's only natural that his voice can be heard.

This problem can actually be solved by replacing the chain tensioner with a manual type. The difference is, in the manual type we can adjust the level of chain tension, while the standard tensioner is set automatically through a spring mechanism. However, replacing the manual type tensioner will also affect the chain if the adjustment is wrong. As a result, the chain can break.

Another way is to replace a new engine chain, this method is safer than modifying the manual tensioner.

The replacement of the keteng chain can be said to be a complicated job because it will deal with the engine top. What is engine top? Top position is the position where the piston is at an angle of 0 degrees in the compression stroke. This makes the four valves in a free position.

2. Engine Valve Starting to Wear/Leave

Suzuki Satria, already carrying DOHC technology so that there are 4 valves in the cylinder head. A rough sound can also be produced by this valve if the valve gap is too wide. The standard gap is 0.20 mm for the intake valve and 0.30 mm for the exhaust valve.

If the gap is larger than standard then the result will be a louder knock from the rocker arm to the valve stem. This will make a ticking sound when the engine is running, and this sound can disappear instantly when the engine is hot. This does not mean the problem is solved, this sound is lost because the valve expands so that the gap is getting smaller. When the engine cools down the sound will return.

To standardize you need to remove the cylinder head cover and replace the valve shim with a thicker size.

3. Camshaft

It should also be noted that the camshaft on the Satria engine is different from other motorcycle engines. Knight camshaft, only uses outboard bearings that are in the gap between the cylinder head and the camshaft cover, and does not use bearing type bearings.

This results in an enlargement of the gap when the machine is running continuously. The enlargement of this gap is due to friction between the shaft and this gap. The solution, some owners make modifications to install additional bearings on the cylinder head. This addition is done by turning the cylinder head and attaching a bearing that has been adjusted to the diameter of the camshaft.

4. Reduced engine oil

Engine oil functions as a lubricant for engine components. If this engine component is not lubricated it will make a rough sound and cause wear. Components such as valves and camshafts often experience this, because of their position above the engine.

Normally, the oil will be distributed to all parts including the cylinder head but if this oil is lacking then the lubrication will not work 100%. So there are components that are not lubricated.

If that happens, you can imagine two metal components rubbing against each other without lubricant, resulting in noise and heat that trigger component wear. This is also what started cause number 3 related to the camshaft.

For that, check the oil stick to find out how much oil is in the engine. If it's not enough, then add the oil, but if it's not enough, it's better to replace all the oil with new oil. Because the lubricating properties will be better if it is not mixed with used lubricant.

Note: The 4 rough sound problems above, are often found on the Suzuki Satria FU version of the carburetor. While the injection version has not shown any typical symptoms. So for injection Fu owners, please be patient and wait for the update.

That's a complete article about the causes and how to deal with a rough satria fu machine, hopefully it's useful

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