I just bought a 1977 Glastron with a Johnson 1976 115hp outboard. Took it in to the shop in Big Bear Lake, CA (6,750 ft altitude) for re-propping was 19 now is 15 pitch. Motor runs well but sometimes stalls at low idle for trolling and Always stalls when trying to pull a 100 lb wakeboarder out of the water. Many times will stall with nobody in the water from a standstill or slow, trolling idle.<br /><br />Have changed and/or tightened all fittings on fuel line and bulb. Same symptoms from main tank or two different portable spares.<br /><br />Next steps - Plan to rebuild carburators and fuel pump. Gasket to air intake is torn and section missing. Any other thoughts?<br /><br />jk