[rocketman007]

Hello to all! First, sorry, my english is not perfect, but i´ll do my best.I bought a used motor, evinrude 30hp, built 1990. The seller told my to use 1:100, but it seems, that the motor runs hot. What´s the rigt fuel-mixture? 1:100 or 1:50? Motor-Number: BE30BAESS.There´s no pdf-manual? Would be great!Thanks, Volker

[clanton]

I would use a 50-1 oil fuel mix. Check water pump first for overheat. If you still have overheat after waterpump replaced, remove head check water deflectors.

[Spidybot]

Guten Tag Volker!50:1 is way to go.Hopefully it hasn't been damaged by running 1% ??Use link bottom of this page to find a manual for the motor. You'll never regret getting one...

[rocketman007]

Thanks for answer...Because i did not want to damage the motor, i used about 1:75. Overheating was just a feeling. So you are sure, 1:50 is right?I asked for manual, eg. technical specification, to read it "black on white". And sure the dealer is interested too. To argue i would like th have something written in my hands.Bye, Volker

[Spidybot]

Yes. You can find a manual here Until you get it:2-cyl531 ccm volumeLoop charge22,4 kw on prop shaft at 5500 motor rpmMax rpm at wot is 5200-5800Gear reduction is 13:26One carburettor4A charging capacityS.L.O.W system for slowing down in case of overheatEasy-pull startWaterproof CD ignitionOptional AccuMix oilinjectionWeight 53,5 - 54,4 kgStd. prop was 3-blade alu, 10" dia 13" or 15" pitchFuel min. 90 octane RON

[CharlesW]

Johnson/Evinrude did recommend a 100:1 oil mix for a short time. They issued a service bulletin to use 50:1 after they burned up several motors. The original manual probably said 100:1 and that ain't good.Charles

[Spidybot]

Right - and some oil brands talk about 100:1 as well. Still , 50:1 (90 octane and TWC-3 oil) is way to go.

[rocketman007]

Thanks to all! That´s what I needed. The Dealer was sure and - he does´nt seem to be someone telling buls... - you told me the reason. For me it was hard to believe what´s right. In Germany we have some forums too, but the number of members is quite less. So the answers come - if the come - very slow. So again, many thanks and always enough water unter your boats! Volker

[andrewkafp]

http://www.goa-northcoastoil.com/tips/obmixing.html