Cox .049 Sure Start Throttle Conversion

Created on December 4, 2010 using FlipShare. Video describing just how easy it is to make the conversion from a standard Cox .049 Sure Start to a "throttle able" Sure Start. OEM getting results from 6,500 RPM to 16,000 RPM.

Category:

Science & Technology

Tags:

• FlipShare
• Sure
• Start
• throttle
• coxengines.ca
• Cox
• .049
• conversion
• International

[Mattcscania]

how do you normally control the throttle?

[BansheeFifteen]

@Mattcscania Well without the throttle conversion, the only thing you can do to adjust rpm is only with the needle valve. But that is only on the ground. Once a Cox .049 non throttled engine is launched, its running pretty close to peak rpm, until fluctuations in fuel amount, speed, fuel delivery has effect on it. So that's what neat about this throttle available from Cox International.  Cox .049 aircraft engines were generally released as non throttled engines. Hope that explains.

[jameshoffmandude]

where do you put the fuel?

[BansheeFifteen]

@jameshoffmandude with Cox .049 Sure Start engines, you need an external fuel tank. Checkout one of my other videos where I'm test running it

[BansheeFifteen]

@jameshoffmandude You run fuel tubing from your tank to a fuel entry nipple that is on the bottom of the tank just the opposite side of the needle valve.

[BansheeFifteen]

I have to add, make sure the bolts that go through the throttle/backplate and into the crankcase are fairly tight. In current tests I found mine had loosened and I experienced poor running characteristics. Any pressure leak is detrimental and will degrade performance. Not to mention it makes it frustrating to start and run.

[Mattcscania]

@BansheeFifteen cheers,one last thing, were do you put the fuel pipe in the engine from the fuel tank? i am thinking of getting one- probably from your shop on ebay, that is why i am asking these questions.Thanks

[ZKMX7]

Great video and very informative.

[MrTree1997]

thank you for this vid, this realy helped me fix on the throttle on my surestart

[Streamliner009]

I wonder if I can buy one Cox here in Spain..