2006 crf450r cold starting

[hartman534]

I recently did a valve adjustment on my bike because it wouldn't start, turns out the left intake valve was completely closed, so I got that fixes but now when I try and start it cold I have to hold the hot start in and kick it for 5 or more minutes before it will start. Once its warm it starts first kick usually with out the hot start. I wondered if its something simply like my fuel screw because it has a little bit of a hanging idle now.

[FORMA MOTO]

What does 'got that fixed' mean regarding your valves. 

Shimming doesn't eliminate leakage.

Did you replace the intakes and do a 3 to 5 angle cut to match the new valves?

 

New Plug

New pilot jet

Adjust fuel screw

Inspect choke plunger

Inspect hot start plunger

Edited November 1, 2013 by Krannie

[JJRace]

like suggested start with measuring your clearances again

 

second make sure the carb is clean and adjusted properly with the fuel screw

 

when dead cold, I twist the throttle about 3 times to put a primer of fuel in the intake, with the choke on and starts first kick. 

[hartman534]

No I didnt do a revalve just a shim job, and my carb is clean with a new spark plug. I havent checked the hot start or choke plungers, what exactly would I be looking for to see if there not working?

Edited November 2, 2013 by hartman534

[FORMA MOTO]

You say your carb is clean, yet you have not looked at the hot start, choke, apump, or slide plate seal, fuel screw o-ring....I'll bet....

 

 

 

http://www.dirtrider.com/features/protips/141_0707_keihin_fcr_carb_rebuild/