Crazy Idle

Hey everyone...im new to motorcycle mechanics and just got a 79 KZ650 for free in semi decent condition.

I threw a new battery and some fresh gas in it for starters and it fired up...but theres a few problems..

It only wants to run with the choke all the way on and when it is running and you give it a little throttle it takes waaay off and sometimes the idle wont come back down...

I got it running good enough to take it down the street and back, and it did okay in first but as soon as i shift into second it doesnt want to let me give it any gas...it just stumbles until i release the throttle..

Im thinking i just need to rebuild the carbs...like maybe something is sticking in there as the bike has been sitting for a while...but im not too savvy on carb problems...

Any ideas?

Thanks!

if the rubber intake runners/carb holders are cracked they can suck in air and produce these symptoms.

How long has it been sitting? Carbs could be way plugged up. Little more history on the bike please.

Well...I know its been sitting for at least 3-4 months for sure...thats when my friend got ahold of it...but before that im not sure...but the registration is from 97 so i can only assume that was the last time it was on the road.

And i looked around on some other topics while waiting for responses and found some similar questions so i went and checked out the intake boots and found some electrical tape wrapped around them....so thats probably problem #1...and im betting the carbs are pretty plugged up...

Now im trying to decide whether to rebuild them myself or to pick up one of WG's shiny new sets....hmmmm:blink: