20 Most Recent 2007 Gilera Nexus 250 Questions & Answers

Stop using until you find out as if it is a oil pressure problem Wear and a seized engine can happen not the sort of the thing you want to happen

well there could be a few diffrent things going on here. i would look into you coil and fuel pump, your model may not have a fuel pump on it if it does most likey a vacuum pump. in sure that all your hose are not cracked and in good shape. Coils can go out and it sounds like thats whats going on here. electricity cause heat, heat cause resistances, which causes more heat and so forth, as you run your bike the coil gets hot and may be braking down on the inside of coil where you cant see anything wrong. if you have any questions please feel free to contact me
M.Woodring
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Given continuous clicking and a fully charged battery, I would say you have a faulty starter -- needs replacing

Charlie

more likely a fuel hose problem.. could be a clogged filter, a pinched hose even a dirty carburetor .. it's not a tight clog it just slows the fuel enough to starve the engine then over time it drips enough fuel into the carb to allow start and run for a short while before clogging again

It sounds as though the mixture is way too rich. Is the choke stuck on or malfunctioning? With is dry spark plug but fuel in the carburetor, try turning the fuel valve and choke off and then with ignition on and holding the throttle at least 1/2 open, kick the engine over several times. If it starts under these conditions then perhaps the float(s) in the float bowel have leaked and are full of gasoline causing the fuel to flow continuously into the throat of the carb then into the engine. It probably is some sort of carb mixture setting, choke or needle valve/float problem.

CHECK THE CABLES THAT GOES TO THE SPARK PLUGS. IT MIGHT BE LOOSE OR BROKEN.

manual Brakes start 219 http://www.bellamoto.rs/upl/files/NEXUS/Nexus%20250%20i.e.%20E3%20MY%202006%20TEHNICKO%20UPUTSTVO.pdf

Possible warped/cracked head or cylinder wall.

Time to disassemble the engine again,,, you can see what is causing the problem ... proceed from there...

242 cc +/- 3 cc (8.2oz)

try some bradex easy start, down inlet.

still think you have a plugged carb passage somewhere maybe an idle air passage, you used carb cleaner and compressed air to blow this carb's jets out?