Morris Minor Owners Club

Front silencer[frame][/frame]

Looks like it's hard against the floor!

It was in that shot taken a few weeks ago, wouldn't cause high mpg though

I suspect you actually mean LOW mpg.......

Yeah that's it

Well, if there are no baffles in it I think it could be the cause.

No baffles?? Got me 'baffled' there!!!

baffles 3rd person singular present, plural of baf·fle
Verb
Totally bewilder or perplex: "an unexplained occurrence that baffled everyone"; "the baffling murder of her sister".
Noun
A device used to restrain the flow of a fluid, gas, or loose material or to prevent the spreading of sound or light in a particular...

It has baffles although straight through. Checked Plugs they are black

So - weaken the mixture!

Yeah done that, hope to take it out for a run this weekend

Is the air filter a K&N one?
When properly cleaned and oiled it should be possible to see tiny holes in the surface if you look at a light through it.

Air filter is one of those chrome pancake type. Went into town today, it feels much better especially when pulling away from sitting at a set of traffic lights. Before I had to rev the engine a little first, now I can just pull away normally

Checked the plugs again & they're as black as the Ace of spades! I can't screw the mixture nut up towards the carb any further. Do I need a different needle? If so what one & where from? Thanks

You need to check the fuel level in the carb, remove the bell and look down at the jet/bridge - any evidence of over flowing? - and is the needle fitted with the shoulder flush with base of piston? Do you know what needle is in there at the moment? And are you sure the 'choke' is going off completely? If the carb is old - the jet could be worn. Have a look at the top face- is the hole round - or slightly oval??

Needle is ABB, I've took the carb off & refitted the original for now so I can check the 1 1/2" carb