Home › Forum › Ask A Member › 1958 envinrude 35 HP big twin running rough › Reply To: 1958 envinrude 35 HP big twin running rough
Did you use a Sierra carb kit along with Sierra points? Both are terrible, and could cause your symptoms. i made the mistake of trying Sierra points a few yrs. ago, mainly because I can by them dirt cheap. I found them to be of terrible quality, and went right back to OEM. Same goes for the carb kit, that does not come with a new float from Sierra.
Is your motor running a single line hose with a fuel pump? If so, and if you are using an aftermarket fuel line and bulb from Wal mart, or whatever, that will eventually be an issue. The inner barrier liner in those aftermarket fuel line will eventually come loose and clog the line shut. I’ve had to replace a truck load of those things. The motor will start and run for a short distance, then slow down and eventually stall out. Just a few things you may want to consider. Hope this may be of help.