Cool Mornings....No start

[cavry]

Cool mornings here  (high 50's -mid 60's).  The '02 300 Bayou has a replacement Chinese Carb that starts first or second hit at temps over 75 or so.  It wont start in the cool mornings.  Choke at any position, Throttle positions, turning over with the compression relief open a few turns, grinding for 20-30 secs, None helps.  Temp goes up, NO Problem.  Ideas?

 

Edited September 22, 2019 by cavry

[Frank Angerano]

Don’t like the Chinese carbs, never have. Any chance the machine has a warmer for the carburetor? Two wires that go in the back/bottom of the carburetor?

[Frank Angerano]

Chinese carburetors are not casted like a name brand carburetor. Things internally do not flow like they should.  I know for a fact that they do not perform like a name brand. They will start the machine and it will run at half throttle and brake up a bit and have problems starting etc. 

Your better off locating a used oem and rebuild it per spec including the jets and slap it on. Your chances of finding a used one in good shape is good. 

 

[cavry]

Yep, it has the warmer built in.  I'll have to wire it to use the warmer.   OEM was out of my price range when I need it.  That is a target project though.

Thanks for the input.

[Frank Angerano]

They do sell the Chinese one with the warmer on it as well. 

[cavry]

Sorry for my confused answer.  Yes, the Chinese one has the warmer. My KLF is not wired for it.  I can probably handle doing that.  This replacement has been perfect to this point.  Runs well at all speeds and idles like a champ. 

[Frank Angerano]

Oh ok got it now.  The warmer works well from what I hear but the temps you are talking about I don’t think warrant the warmer.   

Just curious have you pulled the plug to check the color ? Make sure your not having a blackened plug that may take a crank or two in order to get spark if that plug is oiled or rich it’s in a foiled state and could be your problem.  That could be from a rich mixture or bad valve seals or rings?  Heck I would even do a compression test to be sure.