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Old 10-15-2010 | 01:38 AM
  #23  
nakman8
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Default RE: Walbro carb venturi specs

I bench tested the engine again today at the local flying field. Thought I'd give the neighbors some slack.Motor started easier than last time,I just wasn't advancing the throttle enough. CDi worked fine but it does have a tick coming from the box itself. Was able to hold an idle around 2200-2500rpms. WOT was around 6500-7000 with 18X6 MAS prop. I was following Walbro's tuning directions. Set low end first and then high end.If I leaned out the high end it ran faster but starting smelling hot. 1 turn open on HS needle was really fast but no 4-cycling was present. I need to hook up a servo so I can better control over throttle.
Will keep at it. Hoping to install motor on Balsa USA 108" 1/4 scale.