Author name: Brina

In an engine, metal parts slide and operate violently against each other under high heat and hard conditions. Naturally, sliding (rubbing) parts are gradually reduced or deformed, even if they are steel parts. This is why lubrication is so important, and engine oil plays an important role. Even if you think you are taking good …

Cylinder Head Sheet Cutting and Head Surface Grinding! What does it mean? | News Read More »

Whether riding on ordinary roads or on a circuit track, the body and undercarriage of a motorcycle are subject to collisions with a wide variety of objects. In addition to insects crushed by the cowl, when riding in the rain, gravel, sand, and other debris will collide with the bodywork more frequently than on a …

Iron Powder Remover and Wax Polish are Effective for Roughness of the Paint! | News Read More »

Shrink the tire to warm it from the air inside. It is well known that before riding a motorcycle, one should warm up the engine, but many people may think that this is only for the engine.In winter, however, it is important to pay attention to warming up the tires as well. Tires do not …

Warming up in Winter is not just for Engines! Be Aware of Warming up your Tires as well! | News Read More »

During a normal engine overhaul, not a restoration, various parts are thoroughly inspected after disassembly and cleaning, and assembled while replacing parts as necessary. It is important to know that, instead of polishing thoroughly, it is better to refresh parts that are difficult to polish from the outside, so that the engine will look more …

If you have Gone to the Trouble of Disassembling the Engine, you will want to Polish it to a Beautiful Finish | News Read More »

The spark plug installed in the cylinder head is an important part of igniting the air mixture in the combustion chamber and needs to be replaced periodically depending on the mileage.Installation is done with a wrench as with ordinary screws and bolts, but if the plug is screwed in at an angle or if a …

Plug Holes are Finished when they are Nipped in the Bud! If it’s Bad, Fix with Dedicated Tap before it becomes Fatal! | News Read More »

Before the reverse-engine boom began, the models of our dreams were only seen in overseas reports in motorcycle magazines, but now they are coming back to Japan as reimported used models. One of the most popular models is the Z1 series, known as Kawasaki’s first air-cooled four-cylinder model.Here, we will discuss how the popular first-generation …

What’s the Difference between the first Kawasaki Air-Cooled 4-Cylinder Engine Z2 and Z1 with a Robust Design | News Read More »

Many of the latest models are equipped with genuine LED lamps.Therefore, it is almost unheard of to replace a lamp when the bulb burns out, and the procedure is to replace the entire assembly when the lamp no longer lights up or when parts need to be replaced. However, before the last model generation, it …

Tips for Replacement Work of Burnt-out Turn Signals and Tail Light Bulbs! | News Read More »

Whether it is a 4-cylinder multi-cylinder engine or a single-cylinder engine on a moped, the cylinder head is a major determinant of whether a 4-stroke engine is in good shape or not.We often hear the term “overhaul” used to describe the overhaul of the engine waist, but here we will focus on the internal combustion …

What is the Internal Combustion Machining of a Malfunctioning Engine Repair Point Cylinder Head? | News Read More »

The symptoms that often occur with out-of-print and old cars are “the engine runs well when the RPMs are high” and “the engine tends to stall at idle”, which is a problem that I have to be careful about. Unlike injection cars, which are compensated for by the computer, carburetor cars are very delicate, so …

Carburetor Motorcycle Idling Irregularities may be due to Internal Contamination. Let’s Disassemble it and Soak it in Cleaner. | News Read More »