Hi i got a 50cc 2004 Peugeot speedfighter 2 lc the temperature is going in the red after riding it for about 10mins iv checked the rad and the filler tank the water is circulating ok anyone got any ideas also when pulling away you need to rev the bike slightly more than normal for it to start moving
hope someone can help
thanks

shaun, May 2010

cheers mate i will do iv just put 7gm rollers in the bike but it still seems to rev more than i would expect before it pulls would the jat in the carb make any differents if i changed it

shaun, May 2010

no mate go for the polini, they are excellent stuff and i would definetely reccommend them, thats a good price though aswell

m, May 2010

thanks for your help with everything m ill give them a call iv found a pollini 70 kit for £60 new i no pollini do the sporty stuff for these bikes would you recomend it or am i best to stick with mitaka one
thanks again m

shaun, May 2010

shaun, the crank will take a 70 kit ok and the oil pump will cope, a good cheapo kit is the athena which you can get from ve there are cheaper chinese versions but there crap. i definetely think your head gasket has gone on your current engine, as the lc versions of speedfight were normally always very good! a company in liverpool called grampions does the big bore kits and are not bad, they are mitaka,and a pretty good quality. their contact number is 0151 931 5009 they have all gaskets available etc,

m, May 2010

ok cheers adam ill give it a try
thanks

shaun, May 2010

hi m no excessive smoke it revs up a bit before it starts pulling away but iv orderd some 7gm rollers to try as i got a feeling the ones in there had a flat spot so im hoping that will sort the pulling away out but the over heating i aing got a clue i was thinking of putting a 70 bore kit on it but im just not sure about weather it will knacker the engine any advice m
cheers for your help on this

shaun, May 2010

wait until the bike is cold then take off the header tank cap and then start it and get it warm and look for bubbles coming up uinto the header tank.if it does then its definately going to be as m says the head gasket.theres niot alot of reasons that can make it run hot.either head gasket letting burnt fuel/air into the waterjacket or lack of lubrication or lack of coolant or circulation due to a malfunctioning thermostat/waterpump or a blockage of some type.

adam bike doctor, May 2010

sorry mate was thinkin of a runner 50 then, i would still do the head gasket though any excessive smoke etc???

m, May 2010

hi mate it dosent have a fan on the bike the rads at the front i think its just the air that keeps the rad cool aint it

shaun, May 2010

sounds like your head gasket has gone change it its really easy and it comes in 2 pieces, also make sure the fan works

m, May 2010