2 STROKE WONT START! Peugeot Speedfight 100cc

[halle1643]

Hi guys need help! The wife's speedfight 2 stopped whilst riding to work. The bike was in great condition, had half a tank in it and just stopped, and now won't start, it try's to turn over and sounds like it's gonna go any second but nothing. Things I've checked then;

spark plug was sparking, changed it anyway still sparking, and it ends up black and wet?

Compression read 100psi

Battery good starter mood good really wants to start!

Full clean fuel

Carb stripped and clean looked fine

Tried easy start, still nothing, carb is getting fuel

Air box is clean tried with it off

Checked the cylinder and piston looked clean and tidy rings were good


So it's getting fuel got compression got spark, anything else? Thinking maybe the timing for the spark is out??? Help it's doing my head in! Cheers guys!

[1cyl]

Perhaps too much oil and not enough fuel entering cylinder? or to much fuel?
You absolutely sure the carb jet is crystal clear and its fueling properly?
Did you turn it over plenty of times with the plug out, to purge the son-bitch.
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The SMC | The Pit | Stable

[halle1643]

[quote="SliMC"]Perhaps too much oil and not enough fuel entering cylinder? or to much fuel?
You absolutely sure the carb jet is crystal clear and its fueling properly?
Did you turn it over plenty of times with the plug out, to purge the son-bitch.[/quote

Cheers for the reply mate! Carb is gleaming checked it all over and Had the plug out whilst turning it over I thought it may be to much oil as its self mixing so I disconnected the oil feed and just mixed in the fuel can, as for to much fuel If it was it should at least fire up once? It's annoying because there such simple engines and I can't think of anything else to check and it's not worth enough to take it to a shop it's only a little run a around,

Thinking maybe the spark isn't sparking at the right time?

[Clutchy]

Intake/exhaust ports all clear?


I don't actually know what I'm talking about bear in mind!
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Malaguti F12 Phantom-Dead, Suzuki AY50- Dead, NRG power DD LQ, CBR125.
*33 BHP restriction up on 10/12/14* Current bikes/car: SV 650 S/ MKIV GOLF
Guide to pass your test with no lessons!

[Clutchy]

On a serious note, is there a kill switch or any form of cut out switch?


Such as side stand switch all crudded up?
____________________
Malaguti F12 Phantom-Dead, Suzuki AY50- Dead, NRG power DD LQ, CBR125.
*33 BHP restriction up on 10/12/14* Current bikes/car: SV 650 S/ MKIV GOLF
Guide to pass your test with no lessons!

[andym]

If the spark plug is wet could it not be too much fuel in the cylinder?

Have you tried leaving the spark plug out for half an hour or so?

Also is it a nice blue spark or orange (not that I've ever had a problem with orange sparks and starting a bike).

As for the timing issue, I wouldn't have thought it would 'just stop' if the timing was out, it would get more and more difficult to start surely.

[Nobby the Bastard]

Sounds like a failed seal somewhere. Black and wet soulds like gearbox oil.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[bypass2]

Have you tried a new spark plug.does it have a fly wheel if so what about a worn woodruff key.

[Nobby the Bastard]

[Nobby the Bastard]

On second thoughs, just it is a failed woodruff key, check that the flywheel with the ignitiion pickup beside it doesn't move independantly of the crank.

It's very unlikely that this is the issue because the chances that you will get any spark at all is very slim.

Had a woodruff key fail on my X5 but this was probably caused by cackhanded putting together after crank rebuild on my part. The bike never even got as far as starting. I really can't see one failing on a running bike.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[bypass2]

[quote="Nobby the chihuahua"]

[Nobby the Bastard]

[andys675]

was it raining when it failed?

I used to work on them, had a few fry the ignition due to rain ingress shorting it out, they would then fire at the wrong point

also HT coils are quite a common failure, honda vision uses the same coil
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