My gilera 125/172 cuts out sometimes I have to keep putting the revs on to keep it going otherwise it like just stals. amd wont start again until I keep revving it??and also the temperature gets really high when im going for a short ride what could this problem be??

check float chamber ,jet needles ,filter for clogging up.

overfuelling

coil lead plug cap needs replacing , no shield to protect spark plug from getting wet due to weather/water splash. electrical spray lubricant requires from damp start problem

its sounds like its the rollers in the drive system...they wear flats on them!!...& this is why you wont have drive...it will be trying to like set off in 2nd gear insted of 1st....should be farily easy to sort...& not that expensive

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

It sounds like the fuel pump is loosing it`s prime,replace the pump.

If you are requiring more fuel and it isn't getting there, look for a clogged fuel filter. Also check air filter and carb float bowl for crud build up from gasolin.

Has it been laid up for months? Did you leave any gas in it untreated? You may need to boil out the gas tank . Try a carb cleaner first that you add to the gas.Check the plugs.Are they black/oily (too rich / worn ring), Tan ( correct ).they tell a lot about the condition of the engine. Good Luck

hi mate on the carb there will be a screw get a cross head screw driver and turn this screw in a 1/4 of turns this is the idle screw which should bring the revs up a tad remember its the screw that is sticking out good luck

What type of air fillter have u got on if it is an racing filter try putting the orrignal back on and aslo have u tried chaging the sparkk plug