this post was submitted on 26 Jun 2026
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Motorcycles

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My motorcycle smells strongly of gasoline at higher rpms (and still a bit for lower RPMs). Where do I start troubleshooting first? (lemmy.world)
submitted 1 month ago by dingus@lemmy.world to c/motorcycles@lemmy.world
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Hi all. Noob here back again. I got the screws out of the front master cylinder, but I have been having a different problem.

When under higher RPMs, the bike gives off a VERY strong fuel smell. It's still noticeable at lower RPMs, but not as bad. It didn't do this initially when I got it a few months ago, but I didn't ride it much initially.

Bike is a 2017 Honda Rebel 300. Fuel injected. No carb.

I noticed that the gasket to the gas cap was a bit cracked and distorted so I got a new gas cap. Didn't resolve the issue.

There are no visible leaks anywhere that I can tell.

The smell is very strong around the gas cap and engine, not so much the tailpipe. The bike seems to run great otherwise.

Unfortunately, googling seems to show this as a very nonspecific issue, so I'm a bit lost as to where to begin. I'm a huge noob when it comes to mechanical things.

Thanks!

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[–] dingus@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

Thanks for the idea! I'll be checking it next. atm I need to acquire some zip ties because there is an aftermarket bag zip tied to the area and I don't want to lose the functionality yet lol.

I did manage to try to pull up and inspect the hoses under the tank and everything seems ok. Rubber doesn't look messed up or cracked or anything altho idk what I'm looking for.