Page 1 of 2
Burning excessive fuel
Posted: Mon Jun 23, 2014 12:08 pm
by Mr Ed
Well at least I think I'm burning fuel. I have a standard lambretta fuel tank, 8 litres I believe. From empty I put exactly 1 litre of petrol in it and got about 11km(7miles) before I ran out. So that would suggest on a full 8 litres I'd get 88km(55miles). I haven't changed anything apart from tightening the nuts that secure the exhaust u-bend to the engine. SIL 200 engine, 24 mil Dellorto PHBL Carb.
So, is that normal fuel consumption or is it excessive? I think it's a little excessive. Opinions please, and possible causes if it is excessive.
Cheers.
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 2:03 pm
by Cereal GY
Is the engine kitted or tuned at all?
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 2:07 pm
by Timbo
Is the carb open mouth?
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 2:41 pm
by Shipleystevep
My sx200 rapido classic 225 top end with 26mm delorto and 48mm clubman does exactly and consistently 70 mile on a standard tank brimful before going to reserve. I haven't measured but I think reserve is 3 litres so I reckon on 70 miles to 5 litres.
My sx150 mugello 186 26mm jetex and 42 mm clubman does exactly 60 miles to same amount of fuel.
Both breathing through the airbox
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 2:58 pm
by Mr Ed
Engine not kitted, open mouth with remote air filter on carb.
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 3:50 pm
by Spanish Fly
Mr Ed wrote:Well at least I think I'm burning fuel. I have a standard lambretta fuel tank, 8 litres I believe. From empty I put exactly 1 litre of petrol in it and got about 11km(7miles) before I ran out. So that would suggest on a full 8 litres I'd get 88km(55miles). I haven't changed anything apart from tightening the nuts that secure the exhaust u-bend to the engine. SIL 200 engine, 24 mil Dellorto PHBL Carb.
So, is that normal fuel consumption or is it excessive? I think it's a little excessive. Opinions please, and possible causes if it is excessive.
Cheers.
So the fuel tap was set to reserve before you started the 7 mile journey?
SF
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 4:01 pm
by Mr Ed
Yep. I have a habit, be it good or bad, of just sticking it in reserve.
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 8:12 pm
by DigDug
Mr Ed wrote:Engine not kitted, open mouth with remote air filter on carb.
Bit of an oxymoron there Ed?
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 8:19 pm
by sean brady scooters
Mr Ed wrote:Engine not kitted, open mouth with remote air filter on carb.
so NOT open mouth then at all in fact
Re: Burning excessive fuel
Posted: Mon Jun 23, 2014 8:20 pm
by Adyonekenobi
Hi.
My 225cc TS1 on 30mm VHSH gives me about 10 miles per litre, more if I can stick to the speed limits
Ady