spark plug burnt!!

[mojito]

Hi all, Please advise me on this issue... my bike suddenly died while i was turning into my carpark.. tried to start in vain but bike simply would not start! luckily i have already reached my carpark.

 

Before that on the way home, a few times while in gear 1 i started to feel the bike have no power to move off when i trottle. Thinking of sending the bike to shop tomorrow, suddenly it "died"

 

Took out the spark plug, and saw that it has turn black!! can someone tell me how come the spark plug will get burnt? i just had my carb serviced as i just got the bike 2nd handed. Is it the way i ride? or is there problem with the carb? please advice.......... :cry:

[SparkerS1]

maybe ur spark plug is wet cos of the damp conditions nowadays?

or u idling too high or idle too long?

[KeraKing]

carb wrong setting?

spark plug is aredi used up?

[aRcHeR]

plug will be black after using..

 

if can't start, try changing a plug. if still can't, means somewhere spoil.. could be magnet coil..

[panclanrider]

Maybe you can post the pics of the burnt plug for us to see if something is wrong?

[zell_teo]

that time my bike die half way in cte... tow to shop, shop say n show me that the spark plug split into 2 thats y can move.. so got the spark plug change can run again..

[nebulaz]

black means its too rich...alot of burnt carbon la...not burnt by fire type..hehe..probably not the sparky at all...try to check other factors too like petrol still have or not or sumthin...

[spaiduhz]

Its always nice to have a spare plug with you, as well as spare bulbs. If unker Tian Po is in a bad mood he wont listen to "excuses" that your bike bulb only just blow.

[humveexl]

Something similar happen to me after my EX mechanic service my carb.. the only different is that my plug didn't turn black.. Anyway below is Ah Beng's conclusion

1) Carb timing out (Lost Power when moving off, got problem starting bike everytime engine cool off)

2) Plug too wet, carb have white fume out (Plug wear off easily+EO drain faster) due to Piston having problem

3) If can't live with problem 2 then need overhaul......