Engine noise coming from a motorcycle can be a cause for concern for any rider. It’s essential to pay attention to these sounds and take the necessary steps to diagnose and fix any issues that may be causing them.
For some motorcycle manufacturers, like Ducati and Harley Davidson, the engine noise is a trademark of the brand. This distinctive sound is often achieved through the use of specific engine components and design features. However, if you start hearing a new or different engine noise coming from your motorcycle, it could be a sign of a problem.
If you notice a change in the engine noise coming from your motorcycle, the first step you should take is to have it inspected by a mechanic. The mechanic will be able to diagnose the issue and recommend the necessary repairs.
The motorcycle engine noise when accelerating
There are several potential causes of engine noise, including worn pistons, bearings, valves, engine chain tensioners, and gears inside the engine.
The specific components that may be responsible for the noise can often be determined by the circumstances under which the noise occurs.
For example, if the noise is heard when the engine is in an idle position, it is likely to be related to components involved in combustion, such as the piston, valves, connecting rod, crankshaft, valve chain, and also the clutch because it connects to the crankshaft.
On the other hand, if the noise is heard when the engine is running at high speeds, it is more likely to be caused by bearings, gears, or the gearbox. When the noise is heard during acceleration, it may be difficult to pinpoint the specific cause without disassembling the engine and inspecting each component individually.
Clicking/Ticking Sound
When we hear a clicking or ticking sound from a motorcycle engine, we usually start by checking the valves and adjusting the valve clearance. We also check the chain tensioner to see if that might be the cause of the noise.
However, before we go any further with these potential repairs, we first check for other possible causes, such as loose exhaust bolts or cylinder head bolts, or a leak in the air intake system.
These issues can also produce a clicking or ticking sound and should be addressed before we move on to more complex repairs.
A worn piston
A worn piston can create a larger gap between it and the cylinder block, which can cause loud engine noise. To fix this issue, you may need to rebore the cylinder and use a new piston and ring size. You can also just replace the ring, but if the engine sounds too loud, you’ll likely need to rebore the cylinder block.
Troubleshooting Connecting Rod Failure and Its Impact on Motorcycle Engine Noise
Another potential cause of engine noise is the failure of the connecting rod. This component is responsible for connecting the piston to the crankshaft, and if it fails, it can create a loud, rough noise. If this is the issue, you’ll need to replace the connecting rod to fix the problem. If you ignore this issue and let it go for too long, it could result in fatal engine damage.
Oil engine levels
In some cases, engine noise can also be caused by low levels of oil. Make sure to check the oil levels in your engine regularly to ensure that it is properly lubricated. If you’re unsure about the cause of the engine noise, it’s always a good idea to bring your motorcycle to a motor shop for further inspection.
Overall, it’s important to pay attention to any changes in the noise coming from your motorcycle engine. If you notice a new or different sound, have it checked out by a mechanic as soon as possible to prevent any further damage to your engine. By taking care of these issues early on, you can help ensure that your motorcycle is running smoothly and safely.
