Ran out of fuel, filled up and bike won't start?

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

Hey guys,

Basically I've got a 50cc moped, and as i was on my way to fill it up, i ran out of petrol. I pushed it to the nearest petrol station, filled up and it now won't start at all. Tried the electric start and the kickstart for over an hour and it won't start.

Any suggestions? Would be greatly appreciated.

Thanks,

Matt

deanoet · World Chat Champion Joined: 04 Jul 2007 Karma :

Did it definatly run out of petrol?

Does it have a kill switch (do scooters have these)

Does it have a fuel tap, and is it on
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CBT Passed 18th July 2007 : Previous Bikes> CG125 : Current Bike> Hornet 600 : PASSED DAS 30th Oct 2007
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neo680 · Nova Slayer Joined: 05 Jul 2007 Karma :

Possibility of shit being dragged through as the last drops of petrol came out the tank. Could need flushing through?

If you spent an hour trying to start it, have you flooded it?
Give it a rest & try again?
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Never ride faster than your Guardian Angel can fly & always as if you were about to meet yourself coming the other way!
And just remember: speed doesn't kill! It's the stopping suddenly that hurts.......

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

I'm 99% sure it ran out of petrol because I knew I was low anyway, and when I looked in the tank after, there was no fuel whatsoever (can normally see it swish around when you shake the bike).

I think it has a kill switch, not sure though.

Don't know about a fuel tap.

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

neo680 · Nova Slayer Joined: 05 Jul 2007 Karma :

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

Nufkamp · Traffic Copper Joined: 15 Jul 2007 Karma :

You aint been a plank and filled it with diesel have you? Laughing

alun111 · World Chat Champion Joined: 31 May 2007 Karma :

tryed a near spark plug?

It happened to me once, ran out of petrol - filled it back up and it wouldn't start again. Went through everything and then randomly decided to change the spark plug, and it fixed the problem.

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

Flooding is one of those 'Laymen's Words' for not sure what I've/you've done to it.

It means you have over enriched the air fuel mixture going into the cylinder/s.

The bike guy was almost right in what he advised as solution.

You need to open the throttle WIDE open and kick/crank it over a few times.
This has the effect of 'Blowing' the extra fuel through the engine.

It will not run if too much fuel as there is not enough oxygen present for the fuel to ignite/burn.

After a couple of turns set the choke if fitted and start as normal.

Do not phafh with the throttle this time.

There is no such thing as 'A knack' to start an engine.
This is just the engine saying fix me or start me properly. Laughing

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W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair

deanoet · World Chat Champion Joined: 04 Jul 2007 Karma :

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Walloper is right, if the air/fuel mixture is richer than around 10:1, your bike won't fire and run (depends on many variables etc). Normal is around 13.5-14:1.
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Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

matty49 · Two Stroke Sniffer Joined: 07 May 2007 Karma :

Was your ped sitting for a while before you took it out?? i.e months e.t.c?

Loaney010 · L Plate Warrior Joined: 21 Jun 2007 Karma :

alun111 · World Chat Champion Joined: 31 May 2007 Karma :

konsoli · Traffic Copper Joined: 24 Jul 2007 Karma :

Cigaro · World Chat Champion Joined: 28 Mar 2007 Karma :

A petrol engine won't normally run on diesel alone as it simply will not ignite from a spark - it's not flammable enough. You can drop a lit match into a bucket of diesel and it won't burn.

It won't fuck the engine either, although it may block things up quite badly.

Your mate probably had some petrol left in the tank.

konsoli · Traffic Copper Joined: 24 Jul 2007 Karma :

gadfium · Trackday Trickster Joined: 30 Jul 2006 Karma :

Walloper · Super Spammer Joined: 24 Feb 2005 Karma :

Diesel will not fcuk a catalyst, but lead will fukc 'em. As the catalyst is platinum which bonds with the lead making it instantly useless. Smothered.

Sulfur is in petrol too. You dont notice it but there is up to 2% in petrol. Since most cars never had catalysts the other aromatics in the exaust mask the sulfur pong.
Now lots of cars have catalysts so the only thing they do not burn is sulfur and you get the shitty smell.

Diesel will burn if heated enough and with as much energy release as petrol.
But atomisation is the crux of IC engines and diesel requires much more pressure and heat to atomise and ignite.
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W-ireless A-rtificial L-ifeform L-imited to O-bservation P-eacekeeping and E-fficient R-epair