1993 Johnson 140s / F233

[reelbrothers]

flabum, powerbout..now keep in mInd this is first outboard I've done anything more than plugs, and was following diagram in book, I got the dang intermediate and idle jets reversed.....I'm learning..
thanks for helping

[powerabout]

I love the easy fixes

[reelbrothers]

got home and swapped the air bleeds in the 3 other carbs,bolted the other back on, started up, idled 1100 until warmed then fell to 800, then stumbled and cut off, so to the lake this weekend hopefully to get it tuned in correct.
what a difference .030" makes..

[reelbrothers]

I love the easy fixes

I realize there are lots of caveats to this question but what is your thought on the sweet spot for cruise rpm on these looper v4s...4200?
mine is stock, just playing with prop calculator....

[phillnjack]

about 4800, any less and it will be labouring.. just watch the speedo and the revs.
4200 its got no torque, you too high for low down torque and too low for upper power.

best way is to just test on the boat with the load you will be averaging.

[flabum1017]

I realize there are lots of caveats to this question but what is your thought on the sweet spot for cruise rpm on these looper v4s...4200?
mine is stock, just playing with prop calculator....

It really depends on the boat and load. the easiest way to figure the best cruise is by where the boat planes off. A light boat can plane off at 2500 or so, so economical cruise would be around 3000 - 3500 (like my little Baja would cruise at 40MPH at 3000 RPM). heavy boats moight plane off at 3500 so cruise will be around 4000- 4500........... I usually go by the rule of 500 rpm after the bow drops. but if you don't really care about economy so much, then about 500 brelow WOT will do.

[reelbrothers]

Thanks guys , I'm trying to look for 30 at cruise, 2 mins /mile for running to the fishing grounds and exactly what ya'll implied on lugging is what I'm wanting to avoid. now that I know what rpm range I should look to maintain I can get a starting point, you guys are the best!

Thanks

[powerabout]

you need to look at this after you get the engine height fixed as it should be going lots faster at WOT

[reelbrothers]

hi all, Ive got a gremlin in one of the motors, so had boat running good, went up to 21p props and got all I was expecting,
shut motors off one day and one wouldn't fire, got in on one. pulled cover and checked and no spark period on any cyl. after heck of time getting flywheel off I replaced timer base with used one that tested good, replaced voltage regulator and power pack. I scotchbrited stator but didn't replace as it was charging.
it ran again..took out today , same thing, ran for maybe 30 mins, shut off and now no spark period again , I don't have neutral cutoff in line the black/yellow wire is only on a toggle, I had eliminated key switches. any ideas what to look at?
Thanks

[flabum1017]

Kills switch or ignition switch, but more likely the stator

[reelbrothers]

ok, problem solved. turns out the 2 wire connector on new powerpack. the male pins are not secure in the boot and instead of pushing into female of stator side the slid down, guess they were making contact by touch Initially and lost contact after a little vibration , decided to do ohm check and happened to look inside, slid em up, made sure had full engage and fires right up...

[reelbrothers]

Hope everyone's doing well, thanks for all your help in getting these motors dialed in, no expert for sure but have learned a lot bout these 2 strokes!
with the Carson reeds the response is great. One last PITA I'm having is Stbd motor cranks right up and runs great, just won't idle good, if I come off speed it may idle for 30 seconds then dies, doesn't cough or run rough just dies, will crank right back, Idle 30 seconds and die, no hesitation off idle when I throttle up, either hammering or easing up. timing, mixture screws ect all seem correct, no apparent hose leaks, any suggestions .

Thanks guys.

[flabum1017]

could be loding up, check your float levels.

[reelbrothers]

Took out Saturday, Port engine idles great, runs great to 5k, can get 5500 with trim. Stbd engine is a beast, it will hit 6200 rpm so toying around with trim ect saw 42 mph on gps, now remember this is with 2.25 ratio and 21p alum props, I'll upgrade props , didn't want to drop a bunch not knowing if they would push, I'll keep tweaking on the port side til I get full power, I found that the nut was loose on the timing stop screw and it was backed way out so I'm sure I had too much timing at wot , got nervous, check compression, still good at 120 all 4..if I can get both to run 6200 I think it will do 45, that's way more than I expected from 25 y/o engines!
Thanks again to all of you for helping me through this

[reelbrothers]

report from today, so port motor would RPM out at 5k at 80% throttls, runs great just dead after butterflies 3/4 open.
well, as it turned out the hose that comes from the pulse limiter was not tight at the fuel pump fitting ,guess it wasn't allowing the pump to operate fully,
only discovered because we decided to put a new pump on even though current one was only a year old, now the engine spins up 5700, we hit 44 mph
and we don't have to play with controls to get both engines cruising at 4500. I've seen several threads about engines not building rpm so maybe this will help others evaluate, I've had many issues since the spring, almost all have been fuel delivery,
Thanks to all the guys who've contributed to my learning about the good ole smokers!