predator 212 dies when letting off throttle

[idontlikedylan]

hey guys i have a problem. my bike starts fine and idles fine, but when i give it a lot of gas it dies out when i let off the throttle. if i use the throttle gently and still give it gas as i’m slowing down it doesn’t die. i have a chinese pwk 24mm carb 38 pilot and 125 main. it wasnt doing this before, but i changed the jets out to fix a certain problem and now i have this. is it my main jet, my pilot jet, or my needle position?

 

[DaddyVox]

try 42 pilot and 140 main silver needle in middle position that works for my build
27/25mm valves
champion rockers
308 camshaft
billet internals

It sounds like your running lean on main jet - try the jets I recommend, and see if that helps. It definitely will.

 

[Davis]

Rod locking on the crank when hot.

 

[sparkwizard]

Rod locking on the crank when hot.

I don't understand.
Please explain?

 

[Davis]

I don't understand.
Please explain?

The stock rod in a clone will hot seize and feel like a higher rpm jetting problem and will die from drag sometimes. Then you let it cool off and it will start and idle and run but is just a matter of time before it blows up.

 

[sparkwizard]

Thank you for the explanation.
It makes sense.

 

[ole4]

sounds like a possible lean or perfect idle mixture try richening the idle a bit and see if that helps. And hope it's not the rod!