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There could be a couple of reasons for this. But that’s not to say it’s a big problem.
1st, make sure there is enough fuel in it.
Some vehicles with a large fuel tank, won’t pick up when there’s only a small amount. So stick another Jerry cans worth in if you can.
Secondly, put a battery pack / jump pack or cables on it to give it a power boost and keep cranking it. It can take a while for the fuel pump to get the fuel back to the engine and fill the fuel lines.
Also, keep “priming” the fuel pump. * put the keys in the ignition, turn to position 2 so the car is ready to start and all the lights are on the dash, wait 10 seconds, then remove the keys, and repeat this process 2 or 3 times before trying to start”
This will get the fuel pump to prime up and push fuel down the lines.
Check the fuel jet and make sure it is clean. If there is any dirt in it even though you cleaned the carb the unit will not run properly if any at all. I use an air compressor to clean mine ore a real fine piece of wire.
-Every small engine that comes with the prim Bold. You need to prim (Press) couple time before start. This is normal and always.
-You say you have to prim before it can start. This is normal.
Your machine is good. No need to replace any thing.
When you switch it from prime to paint and it's still running: - If paint/water continues to come out of the prime tube, your prime valve isn't seating properly and needs to be replaced. - If you get a little pressure at the paint gun but it is surging, your packings, most likely the lower set, are damaged and letting most of the paint leak back past them. Packing/seal kits are available for your machine. Use all parts in the kit and grease/lubricate all of the parts well. Inspect the piston and cylinder for scoring or pitting that can damage new seals. They should be mirror smooth for proper operation and life of the seals.
1. Oil level is checked with the engine off and the bike on its center stand so that the oil level is even across the engine.
2. Without knowing the model and year of your bike, it's not possible to suggest the oil capacity for your engine. Some engines have the maximum oil capacity molded into the engine case near the oil filler; others do not.
3. Your fuel petcock is vacuum activated. When the engine is running, a small amount of vacuum keeps the fuel flowing when the petcock is set to "On" (main tank) or "reserve" (emergency dregs of the tank). "Prim" stands for "prime," which permits fuel to flow without the presence of engine vacuum. You'd use this if you ran the bike out of gas and needed to get fuel to the carbs so that the engine could be started again. You don't want to keep your petcock set to "prime" for very long when the bike is turned off (or even when it's on) so that the carbs can't overfill. In extreme cases, you can fill your crankcase with gasoline, which can lead to hydraulic lock and the potential for serious engine damage if you try to run your bike like that (I've had that happen to me).
4. Again, without knowing the year and model of your bike, I am not able to provide any information about the spark plugs used by your bike. However, if your bike has 18mm spark plugs, you'll need an 18mm deep socket to install and remove them. I recommend using a 6-point over a 12-point socket for this purpose--and spending the extra dollar or two to get a good quality, brand name socket. I have never seen an 18mm "spark plug" socket, but if you're really concerned, you can take the little rubber insulator out of an old spark plug socket and stuff it in an 18mm deep socket. I have never bothered.
It sounds like the fuel pressure check valve on the fuel pump has gone bad and your losing fuel pressure when engine is turned off. Try priming the fuel pressure twice, that's when you turn the ignition keys to the run position with out starting the engine for 10 seconds and then turning the key's to the off position and on again for 5 seconds. After the second prim the engine should start, to check this you can lone out a fuel pressure gauge and check the fuel pressure at the shredder valve. You should have 62 to 65 PSI during prim and once the engine is running, it should drop by 5 psi. As for your the accuracy on reading the right amount of fuel in your gas tank, the sensor is apart of the fuel pump sending unit and the float may have gotten bent and nothing you can do to fix it unless you take the fuel pump out again and replace the sending unit. Good luck and keep me posted.
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