skikman Posted June 16, 2013 Share Posted June 16, 2013 my 95 gpx250 will start and idle no problem when cold but take it for a 5-10 mins run i have to work at the throttle to keep it running at traffic lights ect.then when i stop it,its hard to start it again.turns over for a good while until it starts.whats the first thing i should look at?valve clearance?carb?any ideas? Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted June 16, 2013 Share Posted June 16, 2013 condition of air filter might be good place to start sounds like it could be choking up Quote Link to comment Share on other sites More sharing options...
Guest Posted June 20, 2013 Share Posted June 20, 2013 take the plugs out and test for good spark...if ok could be fuel blockage...take carb bowls off and clean em out if socould be a couple of things but generally looking at your plugs is a good place to start i would say..oh also air filter as suggested have a nice day!!! Quote Link to comment Share on other sites More sharing options...
Tango Posted June 20, 2013 Share Posted June 20, 2013 Could be the coil breaking down when it gets hot....... Quote Link to comment Share on other sites More sharing options...
Joeman Posted June 20, 2013 Share Posted June 20, 2013 What happens if you put the choke on a bit? Does that stop it dying?? Quote Link to comment Share on other sites More sharing options...
Guest Posted June 23, 2013 Share Posted June 23, 2013 Can also be a sign of worn Piston rings..AS the engine gets hot and the cylinder expands, worn rings wont expand all that much to keep the compression.Thus, making it a b'tard to start when warm..Cold is fine because the cylinder has contracted around the rings.. Quote Link to comment Share on other sites More sharing options...
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