Running on one leg

[Korix]

Hello again.

some time ago i was working on my gf's bike to make it safe and pretty.
all went well, costs weren't too high and she was happy. during winter
i put it in my livingroom untill today. i tried to start the bike quickly before
putting it back on the street. and everything went well. yay.

now later today i wanted to take it for a ride and then it only fired up only one
cylinder. so yeah...
i don't know what happened, i did nothing in particular in the few hours.
if the problem isn't the spark plugs what could be the cause ?

just a few pics because i didn't post the make over results yet.

 

[xschris]

Plugs or carbs. I would clean the carbs ( take completely apart!) and put a in-line fuel filter between the tank and carbs.

 

[Korix]

but could it be ? the motorcycle has only been inside for maybe 3 months max.
they were cleaned out before that. thats awfully fast to need a complete breakdown again

 

[drewpy]

but could it be ? the motorcycle has only been inside for maybe 3 months max.
they were cleaned out before that. thats awfully fast to need a complete breakdown again

if you leave fuel in, yes they will gum up even quicker in a heated area.

you need to drain them before storage