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Old 06-01-2011 | 07:03 AM
  #221  
1QwkSport2.5r's Avatar
1QwkSport2.5r
 
Joined: Oct 2006
Posts: 10,530
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From: Cottage Grove, MN
Default RE: TT .46 Pro problem.

This is getting a bit... frustrating. I seem to be getting a lot of conflicting information. Bubbles are not a problem. Fuel draw is. I have to have the idle needle out so far to draw fuel, it drowns the plug and the engine quits. The last time I ran the engine, I dialed in the needles and had it singing really nicely but on that particular day I had to leave a glow driver on it because it would quit otherwise. I tried 5 different brand plugs with the same result. (The TT will not even run on the fox hot idle bar plug I have) Since the needle is open so far. The pump advocates say you can put the tank anywhere using a pump. So I bought a pump. The VP30 has a regulator built in. If the pump advocates are wrong and I can't , I think the plug is getting drowned by the extra fuel. That day I had to pull the plug 3 or 4 different times to clear the flooded cylinder. I have never needed to prime the engine since fuel will not stay up to the carb anyway. Cranking the engine brought fuel up to the carb rather quickly. The "drag the tank behind the airplane" kind of statement that I've seen some people use in reference to using a pump is what convinced me to use a pump. Several people have said a bubbleless tank will not promote fuel delivery; merely provide bubble-free fuel whereas others have said a bubbleless tank is the miracle from beyond the cosmos that will cure the need for a pump. The last time I checked, an 6oz tettra tank from Darryl Cady is about $22. That is the biggest tank he has listed. 6oz would probably be okay, but thats over half the cost of a pump and it means less run-time. Jett has more sizes and are a little bit cheaper, but I dont see how this is going to make a difference with providing proper fuel draw without using a pump. The engine ran fine on the test stand, but not on the boat because the tank is farther away than on the stand. (not much, but enough to make a difference.)



Maybe I need to go electric with it and say the heck with it. The boat will probably end up being lighter and probably plane out..

(edited for content)