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Post by zummerp on Mar 15, 2018 22:13:00 GMT -5
Yep - I bought a 50 pack of jets on Amazon and I’m gonna try a smaller main and a bigger pilot. For tonight, I’m pouring a small glass of whiskey and going to bed though ooh I might need to order me that, that would come in handy. if you have a link handy i’d appreciate it but no biggie if you don’t. And cheers to that, nice way to end the night 👍 ChinesePartsPro 90312 50 piece GY6 49cc 50cc 80cc 100cc CVK Carburetor Carb Main Jet 139QMB 139QMA www.amazon.com/dp/B078X2NKC7?ref=yo_pop_ma_swfGoodnight!
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Post by GrumpyUnk on Mar 16, 2018 14:27:55 GMT -5
... A better description of what I am experiencing with the WOT problems is I have to rev it over and over until I get the engine to rev up a bit and then I can hold it at around 1/2 to 3/4 open throttle and it’ll stay running but if I push it further or try to idle, it dies out. also I forgot to add, I did replace the intake manifold at the time also when I did the lines and everything else. To my mind, that description is a textbook fuel flow problem. If you got the gauge float out of the tank, that's good, but I doubt it did anything to restrict fuel flow. It would float(!! the name.._) on top of the fuel, and be out of the way of the outlet. The outlet on most is a tube sticking vertically up from the fitting on the bottom of the tank. It's plastic, about 1/4" in diameter, with sections that are made with screening, very tiny screen, acting just about the same as a filter. The screens can get clogged with crud, especially if the tank was left with 'some' fuel, which would turn to merde. The screens can also start to degrade, though I'm not sure if it is 'ethanol' related or just due to age. You can check for stuff by removing the fitting from the bottom of the tank and doing an inspection. Some of the fittings have both right- and left-hand threads so they will tighten the 'bottom' and the 'top' at the same time. Takes a bit of fiddling to figure out how to make them work when you go to put them back together. I would definitely do a flow check, using a suitable container to catch the fuel. I'd disconnect from the carb fuel inlet, and plop that hose into the container, and then apply suction to the diaphragm fitting on the fuel petcock. Fuel should flow freely for as long as you apply suction. It should flow 'full stream', filling the complete inner diameter of the fuel line. If the fuel flow slows, or stops, you may have found your problem. If you have fuel in the vacuum line, any at all, the diaphragm has a puncture, and will slowly allow the fuel petcock to close, blocking or slowing fuel flow. You can 'juice' it by changing engine rpm, which will create more vacuum in the intake when you let off on the throttle, and perhaps produce enough vacuum to pull the valve open once again, and then as you drive along for a while, the diaphragm slowly closes again as the vacuum in the intake drops at WOT. I'd check the diaphragm, suck on the line, and block with your tongue. Give it a bit of time, and if the diaphragm is bad, the vacuum will drop off even when the end of the tube is blocked. tom
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