engine problems!!!!!!!!!!!!!!!!!!!

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

iv got a phantom f12 scooter 50cc, it run fine for the first day
come to it to day and when i full throttol it the engine starts to die and goes to very low revs, i checked the air filter an there was a strong smell of petrol coming from it pluss the air filter was wet so i cleaned and dryed it but that made no difference, there is also a drops of liquid comeing out of the exhaust when its running. please any suqestions Thumbs Up

Method · World Chat Champion Joined: 02 Nov 2004 Karma :

I dont know anything about scoots at all realy,

But by the sounds of it you are running very rich. Does it smell funny when its idling? Either a petrol or eggy kind of smell?

Check that your choke isnt stuck on... I know some have auto chokes but somehow check that it isnt on constantly?

Hope this is some help, dont realy have a great knowlege base about scoot engines at all, but its a start Thumbs Up

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meooo · Nova Slayer Joined: 23 Dec 2005 Karma :

is it air or water cooled............could be water from a head gasket.
If its fuel coming through the exhaust, possible broken reed valves. ive had this on a yamaha jogrr........wouldnt start, ran poorly.....the reeds were snapped.

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

iv just bought carb cleaner and going to put that in now if this doesnt work il have a look at the choke
thax

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

this may sound stupid but what is a reed valve.

rpg · Scooby Slapper Joined: 08 Jun 2005 Karma :

dont worry its not a stupid question Smile

A reed valve controls the flow of mixture from the carburettor. It usually gives better fuel economy as it only delivers the mixture to the barrell when its needed, theye give good throttle response and thats basically a reed valve!

veeeffarr · Super Spammer Joined: 22 Jul 2004 Karma :

This another bike you've stolen then?

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

no i dont steel bikes thank you very much

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

i tryed the carb cleaner but did not make a differene,well at least iv got a clean carb, i think that it is running to rich as there is a strong smell of petrol and the exhurst has drops of petrol coming out of it when it is running.

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

i dont think its the reed valves as the bike starts fine and there is good throtle response, the engine runs fine until it is being full throttles and then after a few seconds it cuts out and the revs go right down but the engine never stops

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Shager

Look at it like this. You had a CG125 that you wanted to sell that had no ignition. An NSR125 that you asked how to hot-wire, a DT125 with a contradictory story about how you got it that you wanted to know how to hot-wire. You've also advertised that you want a field bike, V5 not needed. Now you have a Firefox.

You've only been on the forum for a little over a month.

If you heard this how would it look to you?

Now I'm not accusing you of being a thief I'm asking you to look at your posts and understand why people may think you are.

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

whos got a firefox iv got a phantom f12 50cc do you want to see my v5 or something.

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

meooo · Nova Slayer Joined: 23 Dec 2005 Karma :

what air filter is fitted?
the standard one is restrictive and the carb is set up for it, but an after market (sporty type) lets through lots more air, same as if the original was removed, the carb cant cope with that much air (too lean) and wont rev up.
btw, to clean the carb properly you must remove it and strip it to access the jets, squirting carb cleaner into it wont do the job.

Chiz · Trackday Trickster Joined: 06 Nov 2005 Karma :

The air filter should be wet (if its a foam filter)- on a 2 stroke you can just get it moist with 2 stroke oil. Unless its a (paper) K&N style one. Then it should be dry.

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

i have took my carb apart (i wish i didnt) i took the float off and a little bit came off and i now dont no where to put it back the bit is only very small it is like a cy;inder with a spike on the end.
iff any ones got any diagrams that would help,

shager · Scooby Slapper Joined: 04 Jan 2006 Karma :

i managed to put the carb back together but now when i start the bike it revs but will not move far it goes about 2mph if that please some one tell me whats wrong

veeeffarr · Super Spammer Joined: 22 Jul 2004 Karma :