Outboard Motor Repair Outboard Motor Repair  

Outboard Motors

Power Heads

Lower Units

Props

Repair Manuals

Controls, Steering

Trim/Tilt

Power Tilt/Trim

Parts

Outboard Motor Repair


Chrysler
Evinrude
Force
Honda
Johnson
Mariner
Mercury
Minn Kota
Nissan
OMC
Suzuki
Yamaha
2 Cycle Outboard Motors
2 Stroke Outboards
4 Cycle Outboards
4 Stroke Outboards
Aftermarket Outboard Parts
Boat Wont Plane
Bolts
Brackets
Carburetors
Cavitation
Choke
Coils
Compression
Condensors
Controls
Cooling
Cowling
Crankshafts
Cylinders
Diagrams
EFI
Electrical
Engine Cleaner
Engine Smoke
Exhaust
FICHT
Fins
Flywheel
Fouling
Fuel Pumps
Fuel Systems
Fuel Tanks
Gaskets
Gauges
Gear Cases
Generators
I/O
Idle
Ignition
Impellers
Inverters
Kill Switch
Leaks
Lower Units
Lubrication
Manuals
Oil
Oil Injection
Oil Mixture
Old Outboards
Outboard Engine Blocks
Outboard Inboard
Outboard Maintenance
Outboard Motor Prices
Outboard Propellers
Paint
Parts
Pistons
Power Loss
Power Packs
Powerheads
Primer Bulb
RPM
Repair Tools
Reverse
Running Lean
Running Rich
Runs Hot
Sea Drives
Sealants
Shafts
Shifter
Skegs
Spark Plugs
Specs
Spring Maintenance
Starter Motors
Starting Problems
Stators
Steering
Synthetic Oil
Tachometers
Tillers
Tilt Trim
Timing
Trim Tabs
Twin Outboards
V6
Voltmeter
Water Pumps
Winterization
Wiring
Year

35 evinrude won't idle

signfinder I replaced fuel pump,all fuel lines and rebuilt carb. The thing just won't idle. If I can act fast and get it out of the high high idle and ram it in gear and throttle it up quickly it runs fine until I go down about 1/3 throttle. I also have fresh gas.This was doing this a week ago for a few days and cleared up and now it is doing it again the same or worse. pleas help I am running out of ideas. thanks ahead of time 2001-11-17
J.B. Cornwell Ahoy, Signfinder. When you rebuilt the carb, exactly what did you do? Did it include replacing or bore-cleaning the low speed jet? How about the orifice into the carb throat? Did you do a link-n-synch to get the throttle and spark properly synchronized? Are you using a manual or wrench's instinct?

By the way, what year is your 'Rude? there have been several in that size range over the years.

Let us know about the above.

Red sky at night. . .
JB

2001-11-17
signfinder yes i do have a OMC manual and i did it by it but i did no sync. what is that? this is a 1982 remote evinrude. I put a new carb. gasket kit and I didn't get a new mid range neddle with it but mine looks good as new. I did soak my carb. in some carb. cleaner for 3 or 4 hours.Then I blew all ports of the carb. with compressed air. I have to have this idle lever on my remote lever all the way up to start it and as soon as I lower it even doing it slowly it falls on its face. I even switched tanks. ANY HELP WOULD BE VERY HELPFUL. THANKS 2001-11-18
petryshyn Waaasssuup signfinder....
>how's compression?
>have you decarboned it lately?
>have you squeezed the primer ball at idle?
>does Idle improve if you carefully cover the carb air inlet with your hand?
>have you check for spark quality?
>how does it start?
>if you add a little WD-40 while its attempting to idle, does it help?

all this might point us in the right direction.....

2001-11-18
signfinder compression is 150 top and 155 bottom cold motor carb. throttle wired wide open-----then I squirted oil in top cyd. and it read 180----- bottom cyd. with oil squirt 205----- I did this 3 times and this was the average. I then cycled the motor to clear the 2001-11-18
petryshyn >have you squeezed the primer ball at idle?
>have you replaced the plugs?(don't care if they were new)
>To check ignition quality, Pull plug wire off of 'engine plug' and install it on an old plug. Widen gap on old plug as wide as you can(b
2001-11-18
J.B. Cornwell Ahoy, Signfinder. With Schematic's help you have proven that the idle circuit in your carb is plugged. Using your manual, find the low speed jet and run a wire through it, then find the orifice through which it feeds fuel into the carb throat and clear that in the same manner. I don't have the manual on your engine, so I can't be more specific than that. If there is a low speed (idle) adjustment back it out about 1 1/2 turns from the seat and fine tune it later.

Red sky at night. . .
JB

2001-11-18
J.B. Cornwell Hmmm. Schematic and I were answering at the same time, so we didn't see one another's post. Ignore any apparent disagreements and do all that is recommended.

Red sky at night. . .
JB

2001-11-18
petryshyn JB
Sorry about that!! I even double check before I hit 'reply' but it still happens...

One thing I don't like about his problem is that it was intermittent, and didn't change after carb overhaul. Still suspect ign.

I'm not sure whats inside those inline spark testers. Did you ever take one apart?
I'm from the old school and like to hear the snap and see the color of an arc when testing available voltage......LOL

2001-11-18
signfinder I squeezed primer bulb at idle and it didn't change a thing.
I replaced plugs.
Took electrode off old plug and did as you said and had a good blue spark on both cyds.
When I sprayed wd40 in carb throat it idled smoothly.
When I partialy blocked carb intake it idled but rough.
I also had a extra power pack so I tried it and had the same results.
The plate ass. under the flywheel lines up with my carb roller like the book says. roller isn't even worn.
I believe I did it right??
I turned by hand counterclockwise and set my carb linkage to it.
I even moved it while it is running to get it to work.When I do this the motor revs up....
Yes I think it does leave a film on the water??/
2001-11-18
petryshyn sounds lean alright.........

>As JB says, what happens when you adjust idle mixture screws?
>As JB says, be sure the timing is correctly set. What bothers me is that you said it speeds up when moving timing plate under flywheel. Does it smoothen out? or just speed up.
>Take some WD-40 and spray the joint between crankcase housings while running. Any effect?
>the part that bugs me is that you say the problem was intermittent. Is that for sure?
>If so how often?

2001-11-18
signfinder When I adjust idle mix screw it starts to sputter when I let it down to that proposed idle speed and when I screw it in it will act worse.
When I turn the timing plate by hand the motor will accelerate and smooths out.
I sprayed wd40 between crankshaft case halves and did not appear to make a difference.Like I said on the water if I can get it going long enough and ram it in gear it has good midrange and full rev. no miss or nothing.
Thanks for all the help again.Have you got anymore ideas? Could it be the stator?
The intermittent problem I was talking about is I'd go and use it FOR 2 DAYS and it ran fine then I go today and it might be ok it is not heat related.<cause it worked ok yesterday till noon and then I brought it home and started working on it. And here I am working on it again and it is acting the same as yesterday, terrible
2001-11-18
petryshyn >If it was a stator problem,you should see a weak or intermitent spark. You said you had good spark, but was it acting up when you checked it?
>When you did carb, was there dirt in float bowl?
>Is it possible that dirt or rust is floating around and blocking off idle ports intermittently?
>take idle needle out of carb. blow in needle bore GENTLY with compressed air from atleast 1" AWAY. If you get too close you could damage fuel pump valve and filter assmy. Reinstall neeedle > adjust as per JB's post and retry. If better, dirt, rust scum is your problem.........
2001-11-18
signfinder took jet out and also took hose off at pump coming from the carb. then blew air thru the needle jet opening . I even put right up to it to blow what ever is there if anything out. It ran the same afterward. also when I did have the carb. off yesterday it was all clean as a pin . As far as yesterday afternoon and today it has not idled on it's owe attire. Anymore ideas? Why does it run ok spraying wd 40 in the throat? Do carbs ever go bad? I did look under a magnifing glass at the carb. when I had it off yesterday to look for cracks in it or anything abnormal. thanks again anymore ideas??????/ 2001-11-18
petryshyn I for one have never seen a carb fail beyond repair, but thats me. I guess its possible. I've replaced shafts, machined and rebushed housings and even repaired cracks. If you cleaned it thoroughly, and blew air through each passage, I can't see it being b 2001-11-18
J.B. Cornwell Hmmm. The intermittent nature of the problem has me confused, too. It seems that there has to be a loose something somewhere that moves to one place and allows an adequate idle mixture, then moves somewhere else and causes lean-out.

You need to pull the carb again, Signfinder, to inspect the reed plates and to run a wire through the low speed fuel passages.

If you have reeds standing partly open, take them off, burnish both sealing surfaces flat with very fine sandpaper, turn them over and reinstall.

Your low speed fuel passages are probably clean from the air, but your symptoms still scream "plugged!!", as Scematic points out. Give particular attention to the tiny hole in the throat that is just behind where the throttle plate seats.

Good luck.

Red sky at night. . .
JB

2001-11-18
signfinder pulled carb again reeds look like they are sealing good.
ran a torch tip cleaner thru all the holes in the idle circuit in the carb, then squirted sea foam thru the idle speed adjuster hole and it came thru the carb. body venturi. It was not plugged...I then blew air thru it...
seems like problem is getting worse!!!!!But it could be because I am not getting the mixture screw set right...
2001-11-18
J.B. Cornwell I sympathize with your frustration, Signfinder, but you are making progress every time you eliminate another suspect.

To be honest, I am out of ideas right now. Maybe Schematic has thought of something else.

If I get any new ideas, I'll post. Meanwhile, good luck.

Red sky at night. . .
JB

2001-11-18
petryshyn Hello again....

>while maintaining the lowest idle speed possible, back out idle mixture screw as far as needed to get best idle.Slow speed a little more and re-adjust idle screw. Try to achieve the best and lowest idle speed possible. While maintain

2001-11-18
signfinder thanks for the reply
maybe you don't understand the whole story
This motor won't even idle on it's own. Ihave to manualy throttle it up back at motor or it will die if it even get's 8 to 900rpm from idle speed. Keep throwing things at me cause I need all the help I can get. Can I spray wd40 before it is running on the spots you discussed or do I need to do while it running? cause I am going to have to get help from my wife if I got to do it while it is running cause I have to play with the carb all the time just to keep it going. thanks again
thats it for me today I am going to toy with this motor again monday night!!!!!!!
2001-11-18
petryshyn >monday night do the suggested in the above post. It must be done while engine running or you won't see the difference.

>one last technique

-turn idle screw in till just bottoms
-back out 3 full turns
-start engine and rev up to around 2000-3000rpm keeping it there
-with your hand, quickly and totally plug off carb air inlet until engine dies.(must be done quickly) I'm hoping this will either dislodge dirt, or aggrivate the problem to the point of easy detection. Remember....we are going on what you tell us, so best to re-evaluate (don't want to find bad ignition this far down the road)

2001-11-18
PurpleDragon I may be way off base here, but is there an inline fuel filter? Maybe it's clogged enough to the point that at low speeds, there's not enough pressure to pull the fuel through the filter, but at higher speeds it can...

Just a thought.

Rex

2001-11-19
signfinder >ran compression check again tonight 145 and 150 on the other
>spark quality seems to be good??
>does have fresh fuel
>carb to timeing sync. o.k.
>brand new plugs
>both look the same blackish color
>reeds look fine<>
2001-11-19
petryshyn >take a timing light and connect to top cylinder plug wire. Check timing mark at slowest speed possible. While watching timing mark, does the mark appear to move back and forth erratically? Try this on both cylinders.
>does it miss a flash now and then?
>what is the advance at slowest speed?
2001-11-19
signfinder put timeing light on motor I have an old light and it really wasn't flashing it pretty well just stayed on at that rpm but this is what I got
>top cyd. 8 degrees
>bottom couldn't even see a mark it is about 1/2 a turn off.
>both of them seemed like they didn't fluctuate much.
I can get a different timeing light tuesday if you think it is needed.....
thanks again and let me know if these figures mean anything......
by the way I am guessing the rpm was 2000 to 3000....
2001-11-19
petryshyn get a better light,(maybe light OK and ign bad) slow the speed till it starts misbehaving, then observe...... 2001-11-19
signfinder tried new timing light and the #1 top cyl. is 6 to 8 deg. is steady then every now and then moves 1 to 2 inches and does about the same on the other cyd. also bottom cyd. is about a 1/2 distance around flywheel where it times. My book doesn't tell me what this should time at except at full load and rpm... Does these symtoms mean anything to anybody?????? I am getting real desperate to get this fixed. Should I just go buy a stator ????? I know it isn't the power pack because I put a new one on I had. Or is it not the ignition??? Could it be coil bad???
thanks again and I hope this rings a bell for you
2001-11-20
petryshyn hi
You say every now and then it moves 1"-2"
>When it is steady, is the idle still bad?

You said previously that it had a good consistant spark
>consistant spark=good pack, coil, stator

You said before engine ran smooth on WD-40
>

2001-11-20
petryshyn Get a second opinion..... 2001-11-20
signfinder I finally found the problem!!!!
It was the rubber seal around the idle jet was shot... I was messing with it and it dawned on me it felt loose after you mentioning about this seal. so I took it out and installed a new one and it came right to a nice idle the first starting of the motor.Thanks one and all that have helped me stab this problem in the ass. This one really stumped me. And thanks goes to schmatic for the great support in this great struggle
2001-11-21

If you would like to post your own question for the experts just click on
the Boating Forums tab at the top of the page or click here!

Disclaimer: iboats.com provides this content for the education and benefit of all boating enthusiasts.
We cannot, however, take responsibility for individual postings, nor can we verify the accuracy of any posting.
Please use any information provided from individuals with great care and read any applicable manuals or safety instructions.
Also, if you determine that a posting is inaccurate or offensive in any manner, please use the Contact Us email form found below.

If you would like to post your own question for the experts just click on the Boating Forums tab at the top of the page!


Outboard Motors

Power Heads

Lower Units

Props

Repair Manuals

Controls, Steering

Trim/Tilt

Power Tilt/Trim

Parts

Outboard Repairs | Boats | Outboard Motors | Boat Dealers
Boat Covers | Boat Propellers | Boat Repair | Marine Engines | Outboard Forum Directory
Terms of Use | Privacy Practices | Legal Notices

1-800-869-1686 (Toll Free)
001-801-571-0071 (International Calls)
Copyright © 1999-2009 iboats, inc. All rights reserved.