450b fuel tank vent

[Brockway761]

Hello again, On our 450b I don't see any vent in the fuel cap, and each time that you remove the cap there is a strong vacuum. Is there a vent somewhere that could be plugged???

[tjdub]

When you take the cap off, you'll see a small diameter tube behind the dipstick tube. That tube goes out through the bottom of the tank. Probably plugged up with a mud dobber or some other bug. Just run a piece of wire down it to clean it out.

[Brockway761]

Thanks, I'll give it a try!