Low mpg

Post by **Trafalgar blue** » Wed Sep 25, 2013 8:01 pm

Front silencer[frame]

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Post by **bmcecosse** » Wed Sep 25, 2013 9:21 pm

Looks like it's hard against the floor!

Post by **Trafalgar blue** » Wed Sep 25, 2013 9:48 pm

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

Post by **bmcecosse** » Wed Sep 25, 2013 10:45 pm

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

Post by **Trafalgar blue** » Thu Sep 26, 2013 6:42 am

Yeah that's it

Post by **MarkyB** » Thu Sep 26, 2013 9:01 am

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

Post by **bmcecosse** » Thu Sep 26, 2013 9:48 am

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

Post by **MarkyB** » Thu Sep 26, 2013 5:07 pm

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...

Post by **Trafalgar blue** » Thu Sep 26, 2013 8:25 pm

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

Post by **bmcecosse** » Thu Sep 26, 2013 9:10 pm

So - weaken the mixture!

Post by **Trafalgar blue** » Fri Sep 27, 2013 6:36 am

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

Post by **MarkyB** » Fri Sep 27, 2013 8:28 am

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.

Post by **Trafalgar blue** » Sun Sep 29, 2013 11:09 am

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

Post by **Trafalgar blue** » Mon Oct 07, 2013 1:02 pm

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

Post by **bmcecosse** » Mon Oct 07, 2013 6:09 pm

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??

Post by **Trafalgar blue** » Mon Oct 07, 2013 7:06 pm

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

Morris Minor Owners Club

Low mpg

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