My 89 240 appears to be having some problems. It just recently returned from the shop with a new fuel filter and a new brake M\C. That is really besides the point. It keeps stalling once it gets warm. When I come to a stop. It stops, unless I keep my foot on the brake and the accelerator. But now that does not even seem to work. It starts up on the second try, but stumbles for about 60 sec and the runs like a champ, until I slow down. i just barely made it home. Can someone help??