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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 03:56 #122345

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Vintin that’s good to know!! I had plugged one so I would have pulse rather than just full pressure. Unfortunately I had to go in and plug both because it was pressuring up hose I capped off like a yellow balloon.. put that yellow hose to the test it’s pretty strong.
if I can’t alter original transfer port cover I’ll have to go back in and pull one of the two plugs and order 3 line fuel pump unfortunately.
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 03:38 #122344

Ok yes I believe these are old pressure to pressure tank, when converting to a 3 hose pump (a in/out ant a pulse)you plug one in return getting a pulse.. I just plugged both as I’m using transfer port for a in/out fuel



Plugging those two small reeds like you've done should have zero effect on how the motor runs. Those are the ones that feed pressure to the pressure tanks. The may be identical to the crankcase drain reeds. 
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 03:33 #122343

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Ray yes that’s the stop you are mentioning.. so when that hits boss is this where the set screw on linkage should hit allowing throttle body to full open? Or should throttle fully open before/after armature hits this boss..
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 01:10 #122335

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And Ray my hugest apologies I just realized the function of that set screw though it’s been said!! That is why the last couple days I couldn’t figure out why butterfly wasn’t opening I moved today and finally had WOT..

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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 01:04 #122334

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Ok on linkage at one point that set screw was binding on mag plate because someone had put brass linkage to mag plate on top of throttle connection going to tiller handle. Wether this was right or not at 3/4 to full throttle it was catching and binding. I dropped brass connection to below which helped but a slight rub still. Diagram shows a spring washer or something there which was missing so all I had was Teflon washer which I used..
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 00:58 #122333

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Ok yes I believe these are old pressure to pressure tank, when converting to a 3 hose pump (a in/out ant a pulse)you plug one in return getting a pulse.. I just plugged both as I’m using transfer port for a in/out fuel
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 00:22 #122332

Yes, the screw you point out is set to push the carb linkage fully open.
I can’t tell from the other photo what you’re point out but there is a boss on the block that the armature plate should contact as a stop at full ignition advance.
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 00:19 #122331

Ray I wonder if when I did conversion I should’ve plugged both these reeds? 







Dan may be able to answer that question.
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 00:12 #122330

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You could always just put the port cover back on and gravity feed the carb out of a hanging bottle to run the motor in the barrel. Ok sounds good
You need to get the timing and throttle linkage issue sorted out first. Agreed!
Are you sure the armature plate is fully advanced against its stop at wide open? Not 100% I’ll add picture 
Can you adjust the set screw on the throttle linkage to make it fully open the butterfly when the armature plate hits the stop? Picture I don’t see set screw on carb but there’s a set screw on linkage
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1957 Ranger IV, Evinrude 30hp Lark 05 Sep 2022 00:05 #122329

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Ray I wonder if when I did conversion I should’ve plugged both these reeds? 
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