[northcoastbob]

Guys,
Any help is appreciated, , I troll a lot at idle speed on Lake Erie and I'm having problems with my 1990 70 hp Evinrude stalling out. I have new fuel, new plugs and it still stalls. Looking for suggestions, what else to look for/do for the problem. Engine starts easy and runs OK in WOT, doesn't stall in neutral at idle, only under load. Thanks guys.

Bob W

[tashasdaddy]

if this has just started this season, when were your carbs last cleaned. it is either low idle speed, 650-750 in gear, or clogging low speed jets in carb, fuel starvation. also check you spark on all 3.

[northcoastbob]

Thanks TashasDad,, yes it did start this season, matter of fact this is the first fishing outing this year trolling, trolled fine last fall. I dumped the old gas for fresh, put in new plugs and I'm doing the de-carb procedure today, just printed it matter of fact.
Bought some XD-50 oil from a Evinrude dealer, he says if you use XD-50 you won't need the Carbon guard cause its already in the oil, is that true? I hope he is right because the carbon guard is almost 15 bucks for a 12 oz bottle and the diff in price for XD-50 over XD-30 per gallon was only 2 bucks. Also I'm running 89 octane gas cause I read somewhere that mixing oil in the gas knocks the octane down a little and 2 cycles will run better on a little higher octane, is that fact or fiction?
Also he suggested testing the compression, any idea what is a range of readings that indicate good compression, I know big differences from cylinder to cylinder like +, - 10 to 15 psi or greater are not good. Any idea what is a good reading for a 1993 70 hp? Also since I am a novice mech how do you check compression, can it be done at the spark plug hole? Thanks for all help.

BobW