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Пікірлер
@FukaNanbu 2 күн бұрын
Myth not busted. There are plenty of videos showing a large difference. Also, one reason you crank with open throttle on a carbureted engine is that fuel isn't being drawn into the engine vs. closed throttle is pulling fuel on the idle circuit. I've seen the muffler on a car full of a good fuel-air mixture compression testing, and then start the engine, blowing the muffler open...
@TheMarineDoctor 2 күн бұрын
You do know the test is done on a 2 stroke engine?
@FukaNanbu 2 күн бұрын
@@TheMarineDoctor Yes. And there's no difference in how a carburetor works.
@TheMarineDoctor 5 күн бұрын
Outside melting and being sent to Manitoba 😂
@kenkarpick 5 күн бұрын
Where is all the snow ❄️😁
@Nudnik1 5 күн бұрын
I picked up a 1979 mint Evinrude 85hp v4 power trim with controls fresh water use only motor on way to scrap. Perfect condition was in storage since 90s . I pickeled it for my grandkids to find .
@TheMarineDoctor 5 күн бұрын
@@Nudnik1 Great engines even if some TLC is needed along the way.
@Adrien-gm4dr 5 күн бұрын
I have a 1990 115hp 4cylinder. My engine only cold starts with starting fluid. And then it runs perfect and turns on normally. I’m thinking that this could be my problem. When I push the key in it makes a clicking noise but i don’t believe it is working. I just rebuilt all 4 carbs and it has had this problem before I rebuilt the carbs and now. Do you think it could be the primer enrichment. Should the plunge(black thing on top of the solenoid)on the enrichment system get pushed down when i push the key in?
@TheMarineDoctor 5 күн бұрын
@@Adrien-gm4dr Disconnect the hose that is not connected to the carb for the solenoid. Activate the primer and squeeze the bulb. Fuel should flow. If it does not, swap the hoses and try again. If it still does not flow...check the feed nipple for debris. Last resort...change the primer solenoid.
@julian15516 22 күн бұрын
Can it be fixed
@TheMarineDoctor 22 күн бұрын
@@julian15516 No. It can be cleaned, but will keep happening.
@randytricker8585 22 күн бұрын
Made by the same company. Decals are the only thing different.,edit. Same motor same parts. But I think parts as they come out are graded. Tohatsu makes Nissan even. Tohatsu is what you want
@timothyschulz4730 24 күн бұрын
What's your thoughts on a Yamaha 30 dmhl 30hp? My cylinder two drives the fuel pump. Cyl 1 &3 plugs are clean, but cyl 2 is wet, and black.... Would diagram be bugged.... I am also down on power at wide open throttle...just doesn't seem to go
@TheMarineDoctor 24 күн бұрын
@@timothyschulz4730 Remove the pump and squeeze the primer. If fuel come out the back of the pump its a fail. Compression and spark need to be tested. You could also trim the engine up at idle and see if the engine cleans up. The would mean a flooding carb.
@kenkarpick 27 күн бұрын
Where do you get slap shot.
@TheMarineDoctor 26 күн бұрын
@@kenkarpick Construction Fasteners in Saskatoon. But I think Amazon carries it too.
@ct1762 27 күн бұрын
it looks like it has a pad! could hang some serious power on it if the transom isnt rotted:) cheers
@billljones979 Ай бұрын
Ouch that's why I'm bringing my 75 merc motor in for winterized properly, I'm not risking it with how much they cost these days
@austindarvai Ай бұрын
I have a force outboard. Came to this video seeing if this could help me fix it.
@TheMarineDoctor Ай бұрын
@@austindarvai What is going on with it?
@austindarvai Ай бұрын
@ we don’t know how to acsess the lower unit. It’s in the shop getting I diagnoses. If you think you could help I’ll fill you in when I get the results back.
@TheMarineDoctor Ай бұрын
@austindarvai Still a certified Force Tech. Just let me know.
@austindarvai Ай бұрын
@@TheMarineDoctor it sucks having a extinct motor because not many know what to do with it.
@austindarvai Ай бұрын
@@TheMarineDoctor it is a force f-5 150hp. We bought it with a boat. Look up “1990 bass hawk” and it should come up with a listing for an auction on “repocast” that’s the listing if you wanna see if you know what the motor is.
@ct1762 Ай бұрын
It shoul be noted you MUST use the rod alignment fixture on these ground rods. 1984-up for these V4 crossflows! hand sanded older ones you dont use the tool. i also noted your seal rings and center main bearing retaining rings are misplaced. maybe just set up for the camera but thought id mention it. 0 rings and bearing housings need grease and sealant as well.
@andronclock1 Ай бұрын
Great advise! Owners manual explains that the connecting rods are made as a single piece and then fractured in the line between the rod and the cap , so they are a perfect fit to each other!
@OscarAdolfsson-y9x Ай бұрын
Hi! Swedish viewer here :) I made a carburetor upgrade on my 15 hp to get 20 hp and it runs nice until I have driven 5 -10 minutes. Then it starts taking in to much air and when I pump fuel from the tank it overflows and (ofcourse) gets impossible to start. The thing is that it runs good again when I swap back to the original 15 hp carb. Somewhere it is leaking. Do you know what the problem could be?
@TheMarineDoctor Ай бұрын
@@OscarAdolfsson-y9x The needle valve is not holding the fuel at the correct level in the carb. Take it apart and look for an obstruction or reset the float height.
@OscarAdolfsson-y9x Ай бұрын
@@TheMarineDoctor Is it not correctly installed when I get it from the manufacturer? We (me and the mechanic on the workshop) have tried with two different ones and have had the same problem both times.
@OscarAdolfsson-y9x Ай бұрын
Thanks for the answer btw :)
@TheMarineDoctor Ай бұрын
@@OscarAdolfsson-y9x Its possible something went through the fuel system and is causing issues.
@OscarAdolfsson-y9x Ай бұрын
@@TheMarineDoctor Hm. Yeah, might be. Just saw a clip on how to adjust the float level. I will try that. Soon night time in Sweden. Appreciate your help :) Thx!
@buck9739 Ай бұрын
Woodard marina charged me 900 bucks I’m gonna risk it and do it myself
@thefloridaredneck Ай бұрын
Pretty sure its just launch control.
@kenkarpick Ай бұрын
Cool system 🎉
@TonyaandBartWagner Ай бұрын
Un tarp it off camera
@TITANONICEvibes Ай бұрын
It runs good on top end. But idles rough and rpm bounces mid throttle around 2000. It’s only smooth on top end
@TheMarineDoctor Ай бұрын
@@TITANONICEvibes Start with compression. Then possible remove and rebuild that carbs.
@TITANONICEvibes Ай бұрын
I have black coming out and draining before my prob. Is this caused by flooding. I have the 90hp 2stroke v4
@TheMarineDoctor Ай бұрын
@@TITANONICEvibes Black is unburnt fuel. Flooding
@Nudnik1 2 ай бұрын
Old mercury has these on ignition to cut motor off if inverted or hit objects under water at high speed in 1970s.
@TheMarineDoctor 2 ай бұрын
@@Nudnik1 They sure did.
@hyungyongchoi1718 2 ай бұрын
Check the sencor...
@TheMarineDoctor 2 ай бұрын
The cyls will needs to be measured and oversized to possibly those numbers.
@Artseventy6 2 ай бұрын
I guess then that 75 ish is not good??
@TheMarineDoctor 2 ай бұрын
@@Artseventy6 Nope. Rebuild time.
@Artseventy6 2 ай бұрын
@@TheMarineDoctor ok, thanks! Can it be done with stock size pistons? or do they need to be bored oversize?
@TheMarineDoctor 2 ай бұрын
The best way is new pistons.
@Artseventy6 2 ай бұрын
@TheMarineDoctor ok, thanks. So does that mean bored out by .020 or .030 maybe? Or just new factory size?
@clintonlamar1503 2 ай бұрын
Stabilizer bar. Keeps the axle from rotating. Not a bad looking unit all together. Hope there's no soft spots in the floor.
@TheMarineDoctor 2 ай бұрын
@@clintonlamar1503 Hey, thanks for that. Now I know what they do and can relay it to the customer.
@chrisrainville6324 2 ай бұрын
I need this for mine! Thanks for sharing!!!
@MrInsanityflea 2 ай бұрын
A "Mercury" switch, haha, This is a great idea. Thank you.
@TheMarineDoctor 2 ай бұрын
Super simple and easy to install.. Just google Mercury tilt switches...bunch on Amazon.
@Nudnik1 2 ай бұрын
Lol Fresh water relic wow!
@Nudnik1 2 ай бұрын
VRO ruined so many good OMC motors . I always convert to premix
@mjodr 2 ай бұрын
JFC
@thefuzzbutt 2 ай бұрын
I have a 100 version of that motor and can concur that a motor that makes 137 in the other 3 holes and suddenly 90 on the 4th is not running good at all. Time for a rebuild.
@andronclock1 2 ай бұрын
Videos are great, everything you say sounds reasonable and helps us DIYers! Thanks a lot!
@chrisrainville6324 2 ай бұрын
They don’t run great at 110!
@michaelcolicchio7172 2 ай бұрын
When upgrading reeds should you jet up a size as well?
@kenkarpick 3 ай бұрын
Runs better than you do Doc
@michaelhamilton3778 3 ай бұрын
Force on a Bayliner. Whoever would’ve thought. 👍🏻
@aidanriccitelli385 3 ай бұрын
You’re a scammer you could’ve just fixed it and a whole boat he could’ve got for that price
@rainerneumeister5239 3 ай бұрын
What difference would this make on the water. ? In mph ? On a small 2.5 meter inflatable.
@TheMarineDoctor 3 ай бұрын
@@rainerneumeister5239 Very minimal. Maybe 1-1.5 mph
@rainerneumeister5239 3 ай бұрын
@@TheMarineDoctor ok. I thought these motors were suppose to rev between 4500 and 5750 rpm. ? We're your readings 2380 and 2750 rpm.
@filipsvendsen3679 3 ай бұрын
What does the reeds do for the engine?
@TheMarineDoctor 3 ай бұрын
@@filipsvendsen3679 The reeds act as the valves for a two stroke engine.
@toddmaersch7200 3 ай бұрын
I really got a lot out of this video. The commentary and detail of your discussion is very helpful. It would be great if you could do more of these longer more in depth videos. The shorts are fun to watch, but to me the more in depth diagnosis and execution of the work is what I come here for. Thanks for sharing your knowledge. Todd
@mjodr 3 ай бұрын
Seems like cooling system water is getting into the block or the combustion chambers. When you shut it off it has enough time to heat into steam which leaks out the carbs. This would cause some loss of power at high RPM, but also do damage long term to everything, including rusting the spark plugs out.
@TheMarineDoctor 3 ай бұрын
@@mjodr It is quite possible that the 3rd gasket has failed under the exhaust plates.
@Nudnik1 3 ай бұрын
Pistons melt if overheat or advanced timing lean carbs ... Reed valves would fail crack off wipe piston cylinder out .Trigger in distributor failed ,power packs yikes .. I built so many of these on Long Island NY America salt water corroded them out in 1980s inner water exhaust covers blocks corroded . Nice running when running Motors. Excellent channel Thank you. Brings back memories.
@curtisolson6417 3 ай бұрын
If i have a 24 gallon fuel tank and fuel injected outboard; is it better at end of season to fill up the tank all the way with fresh fuel with stabilizer or run the fuel tank as low as possible before putting it away for storage and put stabilizer for the remaining fuel? thanks!
@TheMarineDoctor 3 ай бұрын
This is a debate that has been going on for a long long time. Either will work, but the preferred method in the service manuals is this (Mercury). Drain as much fuel from the tank as possible and treat what is left. (Note...they are saying DRAIN not operate the engine and get it as low as possible) This means disconnecting the engine from the fuel supply and removing the fuel from the tank. Obviously not really for the DIY person. As the fuel system on EFI engines is sealed, there is no need to treat the fuel already in the engine. But as a personal recommendation. It would not hurt to add and ounce of two stroke oil to a full tank of gas to help keep the pumps lubed for the following year....especially if water gets into the system.
@samsquires2877 3 ай бұрын
Those 3.0L mercruisers have always been junk.
@mikea8828 3 ай бұрын
this is a product video. get to the point. thats why i chose it.
@MattPetersen-wm5uo 3 ай бұрын
Them damn varments
@Nudnik1 3 ай бұрын
Yikes ...not that motor . I rebuilt so many of them since 1981. Disaster motors .