Hello, we have a 1999 Honda BF90 4 stroke with a very frustrating problem. Cold start is fine. But warm starts are problematic. Makes the motor undependable and has put us in danger twice.<br /><br />The problem happens after running the BF90 some miles and then shutting it off to either troll around with a 8hp or anchor up.<br /><br />When you attempt to start it - it turns over, sputters just slightly and that's it. Cranking more it just spins, no pop. Seems like it's not getting fuel. Originally, because of the initial pop I thought I was flooding the engine but I don't think so.<br /><br />I was told to disconnect the fuel line from the 90hp if we were going to troll ahwile, to stop the vacuum of the trolling motor from sucking the fuel back out of the 90. The last time we had this problem we forgot to disconnect. (The two motors share a common fuel line, that goes to a T-fitting, where it is split into a fuel line for each motor. Each motor's line has a fuel bulb in it.)<br /><br />We did however, pump up the fuel bulb of the 90 real good before trying to start it.<br /><br />Generally if we wait 15 - 30 minutes after the initial starting failure, and after considerable cranking we can get the 90 to start. Any ideas?<br /><br />Can some sort of vacuum lock be created if the trolling motor did suck the fuel out of the 90?<br /><br />Really look forward to your ideas!<br /><br />PS. of course the dealer has had the motor back a number of times and can't diagnose a problem.
