"Moped bike engine oil" Can you exchange it yourself?Check out how to ride for a long time![May 2021 version]

"Bicycle with a motor (moped)" with a displacement of 50cc or less is useful as a daily foot, but daily maintenance greatly affects its life.If you want to continue riding for a long time, you want to replace the engine oil regularly.

In this article, the engine is easy to explain how to replace the engine oil in general (such as scooters), which is equipped with 4 -stroke engines such as "Super Cub" (Honda Motor Kogyo) and "Let's" (Suzuki).Here are some recommended products based on how to choose oil.

原付のエンジンオイルを点検、交換しよう！目次

Why is engine oil necessary in the first place?It has the following roles in the broad division.

Performing an engine oil regularly not only prevents the failure of the moped scooter, but also is very important for riding longer.

自動車や原付のエンジンオイルには大きく5つの役割があります（出典：日本自動車連盟）

The engine oil is defined by the model of the moped scooter.As mentioned earlier, engine oil has a role in enhancing the inside of the engine.From that point of view, it means that the amount is basically too large or too small.

The specified amount of engine oil and inspection method are described in the instruction manual (owners manual).The specified amount may be presented on the sticker of the body.

The inspection method may vary depending on the model, but in the case of a general moped, it is as follows.Use gloves or gloves with gloves or heat -resistant when you work.

( * 1) Many models use it as a cap of engine oil filler (engine oil filler).

オイル量の点検方法は取扱説明書に記載されています（画像はホンダ「トゥデイ（2005年モデル）」の取扱説明書）原付の多くは、エンジンオイルフィラーのフィラーキャップがレベルゲージを兼ねています。その場合、ゲージ部分の網掛けの範囲内のオイルがあるかどうかを確認してください

As a result of the inspection, replenishment is required if the amount of engine oil is close to the rower.When replenishing, replenish the same as the current engine oil as possible.If you can't procure the same thing, replenish the same standard / classification engine oil.However, even if the standard / classification is matched, it may not be suitable for your model depending on the oil component and characteristics.

If you are requesting engine oil at a motorcycle shop, etc., the "maintenance record book" and the sticker pasted on the vehicle will include oil brands and types.If you do not have a description (record) or if you do not know what oil you are using, it is better to replace the full amount of oil from the viewpoint of maintaining performance (the method will be described later).

Many of the 4 -cycle engine motorcycles (including moped) engine oils are the "SAE J300", mainly set by SAE International, and the gasoline engine engine oil standard specified by the API (US Oil Association), JASO.) The three standards "JASO T903" are specified.Similarly, mopeds sold in Japan are specified in these three recommended engine oils.

As mentioned earlier, if you want to replenish the engine oil, use the same oil you are currently put in.However, even with the same oil, model changes may be made (product characteristics change), so be sure to check before buying.

In the SAE J300, two numbers describe the viscosity characteristics of the oil.The value with the "w" in front indicates the viscosity in winter (cold season), and the lower the value, the lower the viscosity (≒ is resistant to cold).On the other hand, the back numbers indicate the viscosity at high temperatures (100 degrees), and the higher the value, the higher the viscosity (≒ engine protection performance).

The general moped is recommended for "10W-30" or "10W-40", but if you change all oils, we recommend that you choose according to the area where you live.

SAE規格の「W」の付く前方の数値は、冬季における粘性を示しています。極寒地でない限りは、多くのメーカーが推奨する「10W」でよいでしょうSAE規格の後方の数値は、液温が100度になった場合の粘性を示しています。ヘビーに乗る原付のエンジンは粘度の高め（固い）エンジンオイルがおすすめです

The API gasoline engine engine oil standard is shown in the combination of "S" and the alphabet that represents the grade, and the higher the alphabet on the back, the higher the performance.At present, the highest rank is "SP", but many mopeds recommend the "SJ" grade and the grade 1-2.

The JASO T903 standard includes performance standards required for motorcycles that are not considered in the SAE J300 / API standard.Broadly speaking, it is divided into the following grade.

The recommended grade varies depending on the moped model.Make sure you choose something that is perfect for your moped.

4サイクルエンジンを搭載するバイク用に販売されているエンジンオイルには、外装にJASO T903規格に基づく等級が記載されています。エンジンオイル選びの参考にしてください

When applying oil, prepare engine oil and oil mug.In the case of a moped scooter, the amount of oil is about 700-800 ml for many models, so if you have an oil mug for the moped oil, a capacity of about 1L is sufficient.If it is difficult to prepare an oil mug, you can use "Jogo" and "Measurement Cup", but please prepare an oil -only one.

After supply, measure the oil amount again according to the procedure mentioned above.Due to the structure, it is difficult to remove the oil a little later in the moped, so please replenish it little by little.

原付のエンジンオイルを補給する際は、オイルジョッキがあると便利ですAmazonで詳細をチェック！（古河薬品工業）Amazonで詳細をチェック！（キタコ）

If the engine oil is reduced, replenish ... but the oil will gradually get dirty.Therefore, the engine oil must be replaced regularly.

Looking at the instruction manual, it is often written that "Please consult with the dealer to replace the engine oil."It may take time and effort, and it may be difficult for the municipality to dispose of the extracted oil (waste oil).

However, once you know the procedure, you can do the replacement work itself.The exchange timing and the required amount of engine oil are described in the "Spec (main / specification)" column in the instruction manual or the "Service Data" column.Depending on the model, there is a similar description on the body sticker.

The oil change is about 1000 km for the first time (after the purchase of a new car), and after that, it is set to be performed every 2000-3000 km (or a year) after that.However, it is recommended that you replace it as soon as possible if you often drive long distances, or if you are on / off frequently on the engine.

交換に必要なエンジンオイルの量は取扱説明書のスペック欄、またはサービスデータ欄に書かれています（画像はホンダ「トゥデイ（2005年モデル）」の取扱説明書）

However, the tools and procedures required for oil change are not listed in the normal instruction manual.You may think, "What should I look at?"If you need a service manual, consult a nearby motorcycle dealer.It is also possible for individuals to purchase for a fee ( * 2).Some manufacturers also sell online through subsidiaries.

( * 2) At the time of purchase, the moped "model name", "year", "model", "frame number (manufacturing number)" may be required.In the case of old models, copying may be provided, or sales may be refused.

ヤマハ発動機では、子会社を通して一部モデルのサービスマニュアルを通信販売しています。ここで購入できない場合は、販売店に相談してみてください（参考リンク）

When replacing the engine oil, you need a new engine oil, an oil mug, and a cloth that wipes off the oil.

In addition, if you have a part cleaner, it will be easier to wipe off the oil on the engine or drain bolt.

Depending on the structure of the moped, the prepared wrench and spanner may not fit well.When purchasing a new wrench or spanner, be sure to check the current car visually before choosing.

ドレンボルト（オイルの排出口をふさぐボルト）は、口径が大きめな傾向にあります。モデルごとに合ったサイズのレンチ／スパナを選びましょう。回している様子を目視できるものを強くおすすめしますAmazonで詳細をチェック！（大橋産業 ソケットレンチセット）多くの原付では、ドレンボルトとエンジンの間に「シーリングワッシャー（ドレンパッキン）」を挟み込みます。再利用は不可能ではありませんが、繰り返し使うと役割を果たせなくなるので、可能な限りオイル交換ごとにワッシャーも交換してください。原付のモデルに合致する口径のものをあらかじめ用意してください（写真は使い古したものです）オイルを処分する場合、画像のような廃油ボックス（処理箱）があると捨てやすいです。ただし、先述の通り、自治体によってはゴミとして出せない場合があるので、自治体のルールをよく確認してくださいAmazonで詳細をチェック！（パルスター ポイボックス 2.5L）

The specific procedure for changing the engine oil varies depending on the model, but it is generally as follows.

The more engine oil is, the easier it is to extract, but it becomes easier to burn.Please be careful about burns when working.

Also, if you put too much effort when installing the drain bolt, the engine will be damaged.If you have a torque wrench (a wrench that can adjust the strength of the twist), it is OK to tighten it with the torque as described in the service manual.If you do not have it, try to tighten with some strength, which does not cause oil leakage.

オイルドレンのボルトにレンチ（またはスパナ）をかけて取り外すと……エンジンから出た汚れを取り込んだオイルが勢いよく出てきます。廃油受け（廃油ボックス）でしっかり受け止めましょうオイルの交換量はモデル（エンジン）ごとに異なります。しっかり規定値を量ってからから入れることを強くおすすめしますオイルフィラーからエンジンオイルを入れる際に、急にたくさん入れようとするとあふれます。ゆっくり入れましょう

There are various engine oils that can be used with the moped of the 4 -cycle engine.Here are some recommended ones.

It is a genuine engine oil of Honda (Honda Mitsuken Kogyo).1L items are sold for the general public.

The ULTRA series is a genuine engine oil brand for Honda's motorcycle, and G1 is a standard oil for various motorcycles excluding the company's scooters.The new package version released in 2021 has changed to the composition of the base oil, and has been switched to "partial chemical synthetic oil", which is strong in cold regions (the old package version is "mineral oil").

（出典：Amazon）Amazonで詳細をチェック！（新パッケージ）

It is a genuine engine oil of Yamaha Motor.1L items are sold for the general public.

YAMALUBE is a genuine oil brand of Yamaha Motor.Like Ultra G1 in Honda, this oil is a reference oil for motorcycles except for some Yamaha mobilizers.It is a mineral oil that emphasizes cost performance, and is perfect for various "ways of running".

（出典：Amazon）Amazonで詳細をチェック！

MOBIL (mobile) brand motorcycle engine oil sold by EMG Lubrikants.1L items are sold for the general public.

The base oil is mineral oil, but it contains advanced additives to enhance the performance of the engine cleanliness and protection.Rust / corrosion suppression effect is also high.

（出典：Amazon）Amazonで詳細をチェック！

It is a genuine engine oil for Honda moped scooter (50-125cc).1L items are sold for the general public.

The base oil is a mineral oil, and is finished in a characteristic that is suitable for scooters by blending frictional reductions.When used with a moped scooter, it is also attractive that it is more affordable than the above G1.

（出典：Amazon）Amazonで詳細をチェック！