Ch. 8 · Motorcycles

Removing the muffler increases noise, so such modifications are prohibited.

[True / False · Easy]

Answer: ✓ True

Explanation

The text clearly states that "removing the muffler, cutting it, removing the muffler core, or drilling holes in the muffler increases noise, so such modifications are prohibited."

Driving school curriculumStage 1 – Topic 1: Driver's mindset

Momoka
Momoka
I mean, removing the muffler makes it louder, but is it actually against the rules?
Hikari
Hikari
Yep, that's true! Cutting it, removing the core, or drilling holes all increase noise, so those mods are prohibited.
Momoka
Momoka
Got it, so basically any muffler tampering is a no-go.
Hikari
Hikari
Exactly — keep the muffler intact and you'll stay on the right side of the law.

Source: Ch. 8 Motorcycles · Section (第６節 その他注意しなければならないこと) · １ 改造の禁止 - マフラーを取り外したり…騒音が大きくなるので、このような改造をしてはいけません。

🤖 Dig deeper with AI

Send this question's context to ChatGPT for a richer explanation. The prompt also asks the AI to point you back to this chapter's practice quiz.

🚀 Ask ChatGPT

If the button doesn't open ChatGPT, tap Copy and paste it into Claude, Gemini, or any other LLM you prefer. On a free plan, Claude (claude.ai) tends to produce more accurate explanations that respect this site's content.

← Back to all Ch. 8 questions

See the glossary for definitions of key terms.

Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.