Nightmare of a bike

[Richards1234]

Hello all, recently got my first bike, a 125cc, since I got it it's been a nightmare, starts first time and sits happy, but after 15 mins or so of riding (or when hot) it cuts out and refuses to restart until cool, I've replaced and tuned the carb so fuel/air is fine, it seems electrical, any ideas? I've none, thanks everyone in advance

[skyrider]

Hi what make and model is it

[Richards1234]

It's a daelim roadwin

[Tiggie]

How about air filter? Is air free flowing to it? No blockages etc?

[Mississippi Bullfrog]

Ignition coils can breakdown when hot then work fine once they’ve cooled down. But I know nothing about your brand of bike.

[Marino]

Is it air or liquid cooled?

[Bender]

When it refuses to start your going to have to start looking, remove plug and see if it's sparking start somewhere and tick them off, you need spark, compression and air/fuel, one of them is not playing.

[Richards1234]

Its had a new air filter, got spark and compression, also its air cooled, everything mechanical has either been replaced or double checked, I believe it to be electrical, ignition coil is a good shout

[skyrider]

what year is the bike

[Richards1234]

It's a 2005

[Bender]

Its had a new air filter, got spark and compression, also its air cooled, everything mechanical has either been replaced or double checked, I believe it to be electrical, ignition coil is a good shout

 

It's got spark when it's running but when it's cut out and not starting, if it's sparking then why is ignition circuit faulty?

[WD-40]

I'd do as bender said when it cuts out check if it has spark. You could also open the drain screw on the carb and check if it's got petrol to the carb. Also when it's cut out check if it's got compression. If the valve clearance was too tight it could loose compression when the valve get hot

[Tankbag]

Does it have a kick start ? If it does try kick starting it after it refuses to start when hot. If it does start on the kick I'm going to go with low voltage in the system which will not give enough power for a spark.

If you have a volt ohm meter, hook it to your battery once the bike is warmed up. Hit the starter button and see what the voltage drops to. If it drops below 10 volts you probably don't have enough voltage for the coil to supply a hot spark.

[Guest Richzx6r]

As bender says check all these things when its refusing to run to get a true reference of what it could be.

[Guest Swagman]

Is the fuel tank breather blocked, if so would starve of petrol when, it cuts out open fuel cap and see if it restarts then If it does then there’s your fault.

[fastbob]

Hello all, recently got my first bike, a 125cc, since I got it it's been a nightmare, starts first time and sits happy, but after 15 mins or so of riding (or when hot) it cuts out and refuses to restart until cool, I've replaced and tuned the carb so fuel/air is fine, it seems electrical, any ideas? I've none, thanks everyone in advance

 

Coil .

[fastbob]

This is priceless .

[geofferz]

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https://www.amazon.co.uk/dp/B00FE3PHZ6/ref=cm_sw_r_cp_apa_i_MT.iFbH72SQPX

Wow

[geofferz]

https://www.amazon.co.uk/dp/B00FE3PHZ6/ref=cm_sw_r_cp_apa_i_MT.iFbH72SQPX

[Guest Richzx6r]

This is priceless .

 

love it

[Guest Swagman]

This is priceless .

 

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[fastbob]

This is priceless .

 

Excellently written piece of crap.

 

I'm thinking Chinese to German to English may have actually gained something in the translation .

[Guest Swagman]

This is priceless .

 

Excellently written piece of crap.

 

I'm thinking Chinese to German to English may have actually gained something in the translation .

 

Well at least it gained a bit of comedy in the translation.

[onesea]

If Carbs fuel filter and air filter all done...

1) Might be worth running with fuel cap lifted just in case its vent is blocked,

2) Electrical I would go: a) Timing sensor pick up, b) Coils,

[Richards1234]

Thanks for help guys, I fitted a new stator and pick up and all seems fine for now