Hi I have a gilera runner st 2006. The bike starts ans runs fine but when you rev the bike it seems like its misfiring, I can pull the throttle all the way back and it doesn't cut out. Have tried changing the carb but It still has the same problem. Can you help?

SOURCE: carb tune up gilera runner 50

on the carb you will find 2 screw one will be quite far in than the over thats the one you adjust this is the mixture screw which controlles the air and petrol together unscrew it say 1/4 a turns at a time and see if it improves if it gets worse screw it the oposite way and see if that improves good luck buddy

SOURCE: misfiring at speed on gilera 200 scooter

This sounds more like a lean fuel condition than ignition. If it was stored over the winter without the gas being drained or a fuel stabilizer being added, you'll likely have varnish build-up in the fuel system that is not allowing sufficient fuel flow.  If your engine is fuel injected, it's likely your injector is partially clogged.  If it's carbureted, your carb jets may be partially clogged or your carb float may be sticking and not allowing the needle valve to fully open.  Fill the gas tank with fresh gasoline, but leave enough room for a can of Sea Foam.  The Sea Foam may be able to break up the deposits and allow fuel to flow again.  However, there's no guarantee and the fuel system may have to be disassembled to be cleaned.

SOURCE: gear box oil my bike cuts out at top speeds

the gear box oil does not go anywhere.it helps to lubricate the gear surface.its located at the rear .pls check your carb and spark plug.if two item is o.k check your engine block is there any crack at your engine

SOURCE: Gilera runner 50sp 06 (New shape) keeps bogging out when acc

why is my gilera bogging out when i drvie it on the flat

SOURCE: Gilera Runner very difficult to start cold,then cuts out when hot

to check the electric choke..take it/off out of carb & unplug it. then get 2 short lenghts of wires, strip both ends...shove one end into the choke plug teminals(one in each hole) .then put one of the striped ends of thewires on a charged battery(one on the positve & one on the negitvie terminals) .keep them on for about 5 mins & you should see the choke head extend (you could always mesure it befor you put to battery & check in 5mis to see if extened!!) this will tell you if its working!!...if its not working this will explane why you have trouble starting from cold!!..it also sounds like the main jet is blocked...this is found by taking of the float bowl (as you may know!)it will prob be the small hole up the middle of the jet that is made up with muck!!...try sticking a strand of a wire brush up/threw it...also it sounds like the exhaust is leaking round the maifold..will have to take exhaust of & check if it need a new gasket..or resealing!!(does the exhaust blow?. this is good way to tell if it is leaking(put a rag/palm of hand over end of exhaust & you should beable to hear it blowing. ...hope this helps....Howard