20 Most Recent 2009 Gilera GP800 Questions & Answers

im not familiar with this model. Does it have a clutch for gears? Is it in neutral? Is it in gear? Does it have a kill switch connected to the kickstand? Also on my Yamaha I went nuts with same thing and found out I had a wire come loose, but it looked like it was still connected because it was inside the crimper/connector thing.

small jet in carb blocked, runs great on main jet it would seem

Most likely just the cold start system is still on when it happens. just leave the engine to reach operating temperature before you ride. This will also make you engine last longer and save you fuel as well.

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?

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