Problems starting yamaha kt100

This topic has 11 replies, 6 voices, and was last updated 11 years, 2 months ago by Omar Calixtro.

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- June 8, 2015 at 2:13 pm #49555
  
  Peter Zambos
  Participant
  
  It’s really simple. Engage starter shaft. Activate starter. Blip throttle. Disengage starter. You might have to choke the intake for a second if you just put a fresh carb on it.
  If you have to do anything else, then something else is wrong. Does the clutch and axle spin easily while the kart is on the stand?
  - June 8, 2015 at 2:27 pm #49557
    
    Omar Calixtro
    Participant
    
    The clutch and the axle spin just fine.
- June 8, 2015 at 2:38 pm #49558
  
  Anonymous
  Inactive
  
  So it starts when you choke it? Do you then keep giving it throttle to keep it running and it still dies?
  - June 8, 2015 at 2:42 pm #49559
    
    Omar Calixtro
    Participant
    
    I haven’t tried going full throttle. I say I go about medium throttle. Should I give full throttle or very little throttle?
- June 8, 2015 at 10:19 pm #49575
  
  tony zambos
  Participant
  
  Omar,
  Was anything else done to the motor besides installing the clutch?
  How did you hold the crankshaft stationary while tightening the starter nut on the clutch?
  - June 9, 2015 at 4:29 am #49576
    
    Omar Calixtro
    Participant
    
    Tony, nothing else was done besides installing the clutch. I could check the carb. But I doubt thats the problem because if I choke the engine fuel does pump.
    - June 9, 2015 at 3:05 pm #49619
      
      Omar Calixtro
      Participant
      
      Also I am using the inbuilt fuel pump on the walbro wb3a.
- June 9, 2015 at 11:50 am #49609
  
  Walt Gifford
  Participant
  
  Clean the fuel screen and put in a new pumper. Also could be a fouled plug from running rich on the stand.
- June 9, 2015 at 2:58 pm #49617
  
  Omar Calixtro
  Participant
  
  I also noticed just now when I tried to start it again that the fuel had trouble getting up to where the fuel going in the carb. The fuel had problems going up once I stopped choking the engine
- June 9, 2015 at 7:36 pm #49624
  
  Patrick Haney
  Participant
  
  I had the exact same problem. When I cloaked the engine, the fuel would reach the carb. As soon as I took my hand off the intake, the engine would stall. Problem? Fuel tank vent was clogged.
  - June 10, 2015 at 5:10 am #49635
    
    Omar Calixtro
    Participant
    
    Thank you patrick I will take a look at the fuel tank vent later.
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