300ex wont start when cold but...

[CrazyAngler]

Ok i have a 94 300ex, so here's the problem the bike wont start when its cold but it will pull start no problem, and after it gets warmed up it will start very easily. Is this a carb or electrical, problem, its still all stock. This is what i have done thus far, cleaned carb, verified getting spark and gas, checked plug and cleaned, charged and checked battery 12+ volts. however when trying to start the bike when its cold the voltage drops fairly quickly to less than 10volts as its trying to start?
Im starting to run out of ideas so any info would be greatly appreciated

thanks James

[dns1764]

mine is doing the same thing. i think its the battery. i'm not getting enough juice to turn it over when its cold. it works fine when it its hot

[shaungray89]

valves probly need to be adjusted mine was doing same thing until i adjusted them

[Pappy]

Originally posted by CrazyAngler
however when trying to start the bike when its cold the voltage drops fairly quickly to less than 10volts as its trying to start?


thanks James

Chances are your battery is in need of replacement OR the temperatures are low enough to cause the cranking voltage tod rop below the amount required to spin the starter fast enough to fire the engine (this is why it will pull start but wont fire off the battery)

[mikecancu812]

maybe the battery has a blown cell in it and won't handle a load put on it. A new battery would probably fix it

[Trxman300]

could also be the celinoid....... cheak battery first then the wireing and plugs and the celinoid.

[CrazyAngler]

thanks for the info im gonna replace the battery saturday hopefully that will take of the problem,

James

[rooster300ex]

the starter could be wore out

[Josh300ex]

thanks for the ideas, mine is a 93 and it does the same exact thing when the temp is 10 degrees F or like -12 Celsius

[riggsracin]

if it cranking over ok you may need to up the low speed jet a size or adjust the valves