Excessive fuel consumption

[jonboy]

I brimmed my duet tank only ridden about
7.10 miles
Filled it to today for a trip tomorrow and it's
Taken 5 litres of fuel
No leaks so can't work out why

[garry inglis]

My 3ltr Capri was like that

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[holty]

maybe its overjetted, what carb, cylinder, and tune is it ?

[mick1]

I'm assuming a duet tank is the same as a dual tank ?

These double tanks can get air locked and you may think you have filled it when you haven't. I suspect you "filled" the tanks but didn't let them settle, the level then drops suddenly when riding.

A lad who rides with us has dual tanks and his fill ups vary considerably to the rest of us.

[jonboy]

Mikuni tmx 35
Avanti 225
Standard tank

Is it possible one of the jets has vibrated out
of its place

[HxPaul]

I've known some Lambrettas that are a bit thirsty,but just over 7 miles per gallon takes some beating.

[Toddy]

My 3ltr Capri was like that

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[drunkmunkey6969]

My 3ltr Capri was like that

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Just spat my beer out.....lol


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[Tractorman]

I brimmed my duet tank only ridden about
7.10 miles
Filled it to today for a trip tomorrow and it's
Taken 5 litres of fuel
No leaks so can't work out why

Put a Wal Phillips fuel injector on and I got about 18 mikes on 5lts.

[ktmh5]

I'm assuming a duet tank is the same as a dual tank ?

These double tanks can get air locked and you may think you have filled it when you haven't. I suspect you "filled" the tanks but didn't let them settle, the level then drops suddenly when riding.

A lad who rides with us has dual tanks and his fill ups vary considerably to the rest of us.

+1...most likely what has happened.