1987 50 hp force bogging when turning at full speed

[bigshink]

All,

Wierd situation here My motor starts up and runs perfect no problems with the exception of when i am making turns during the run it usually bogs way down or else will speed up a bit mostly bogs way down I am wondering what could cause this. If it speeds when i turn when I bring it back to going to straigt it will bog down then come back up to full speed i would really appreciate any help you guys can give me on this. Thanks in advance for your help.

 

[MostlyHrmlss]

Re: 1987 50 hp force bogging when turning at full speed

How's your float level? If the fuel level was low in the float bowl, it might slosh to the side during a turn and the jet could suck air. Same thing might happen with water/crap in the bowls.

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

I will have to check it if the level is low what is the next step also I can't seem to find a idle adjust screw on my carb I have looked and can't seem to find it im used to messing with smaller outboards. Thanks again for your help.

 

[robms6]

Re: 1987 50 hp force bogging when turning at full speed

On my 125 my idle adjustment screw/stopper is on my timing link. I would suggest ordering a Manuel for tinkering.(i have a clymer... wish it had more pics) If you adjust the wrong part of the linkage towards the top instead of the bottom by the carb linkage it can/will throw your timing out of wack. Carbs tend to not perform well during turns like the last gent said. Also if your prop has to much pitch for your application the motor will naturally bog down anyway as you lose speed performing tight turns. Pull your plugs and see if they look burned. Maybe go 1/8 turn richer also. From what I have read at least on 125's when properly tuned they idle like shyt because they are supposed to be tuned rich so cyl's don't melt at 4700 rpm's for a hour straight.

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

Rob I will take a look at that when i get home. Could this also be cause be failing to open the fuel vent on the gas can? I just think that if the cent was closed it would perform terrible all the time not just during turns. Thanks again for your help.

 

[jerryjerry05]

Re: 1987 50 hp force bogging when turning at full speed

Fuel delivery sounds like your problem.Check the fuel pump diaphram and check valves.Look at soft hoses.Squeezie could be bad.J

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

Jerry I looked at the hose and squeeze pump and it's good also checked the line and it's fine also. I checked the fuel pump gasket and screen diaphram all looks good. I did relocate my fuel hose where it comes into the motor it looked like when i turned it was kinking the hose and not letting all fuel through the hose. I assume this problem could also be caused by not opening your vent valve on your fuel tank which i did forget to do however the only time i lost power was when turning. I will try to get the boat out on Thursday and let you guys know how it goes. I hope it was just as simple as relocating my hose. Thanks for everyones help on this.

 

[metor99]

Re: 1987 50 hp force bogging when turning at full speed

I might be way out. But this is your problem. You have to look at the surface area of your boat bottom. When going straight, you have alot of area in the water. Now in a turn you have alot LESS area in the water and alot more water friction/ drag. If you want to power through a turn you will need a bigger motor or change the prop pitch lower. That is just the way it is. My bout wath a 50 on it does the same thing.

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

Metor,

I understand what your are saying completley however I shouldn't go from lets just say 30mph to 5 mph. You have a great point and I appreciate your feed back. Take it easy.

 

[metor99]

Re: 1987 50 hp force bogging when turning at full speed

30 to 5 is not bogging down. it is dropping a cylinder or spun prop. is your motor too high on your transom and cavitating out in a turn.

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

The motor is the factory motor that came on the boat. It runs fine at full speed going straight. When i turn it drops way down and then catches back up withing 2 or 3 seconds. the rpms go was down when this happens as well.

 

[jerryjerry05]

Re: 1987 50 hp force bogging when turning at full speed

A boat normally slows in a turn.You don't have Trim/Tilt.Your motor is stuck in one position.If you could lower the motor in a turn it would help.
If you run at full throttle all the time that's gonna be what you get.
You just don't have the power to run with the big dogs.
You sure the motor is running right?Check compression and spark.J

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

I did notice when disconnecting my fuel line that i had forgot to open the vent for the fuel tank it was collapsed about half way im sure that could have been most of my problem am I right?

 

[geeco1]

Re: 1987 50 hp force bogging when turning at full speed

Having the vent closed on the tank will cause your boat to bog down and die while at WOT. However, it will do this regardless of if you are turning or going straight. I have done this several times especially if I switch tanks in the middle of the day, I sometimes forget to open the vent on the new tank. A few minutes into the new tank and the engine will bog down and die. Starts right back up and idles, but will bog down again when trying to accelerate.

By chance is it doing this while pulling a tube or skiier? My boat will tend to bog down when pulling a tube. It is a 2-3 person tube and I usually have 2 teens sitting on it, so around 200 - 225 lbs of body weight. In tight turns I will bog down because the engine(85hp) doesn't have enough ponies to carry all of that weight in a tight turn. Just a fact of life

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

Geeco1,

I am not pulling skiers just driving around with the family 3 little kids and my wife. Were not even close to the weight limit. I am going to try it out again hopefully today and see how it goes. I might just go ahead and replace the fuel pump and carb eventually. I am in the Navy and deploying for seven months real soon so I will do it when I get back.

 

[geeco1]

Re: 1987 50 hp force bogging when turning at full speed

Let us know how it turns out. And be careful while on deployment.

 

[bigshink]

Re: 1987 50 hp force bogging when turning at full speed

Geeco,

I will let you know how it goes and thanks for the kind words.

 

[jerryjerry05]

Re: 1987 50 hp force bogging when turning at full speed

Fill out the profile you might be close to someone who can help.
I always try to help the military and don't usually charge.J