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Feb 12th, 2024
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 Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Fooshman]
#5940151
09/22/15 03:13 AM
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Guy
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Are you giving it any throttle in the video or is correcting itself? Idling on its own, not touching the throttle.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Navasot]
#5940305
09/22/15 10:06 AM
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wal1809
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When you did that wal what did you do with the vacuum port? I left the old pump in place and just ran new fuel lines.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5940307
09/22/15 10:16 AM
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wal1809
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Is your boat still under warranty?
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: wal1809]
#5940393
09/22/15 12:16 PM
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Guy
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Is your boat still under warranty? Been just under 1 year, so probably so. Don't think it helps though with fuel related issues, learned that with my other motor.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5940455
09/22/15 01:17 PM
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wal1809
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If the fuel pump is failing I would suspect it would be under warranty. I am not so quick to jump on a "Fuel gone bad" theory right now. The main reason is I know you have had blue stabil in it the whole time. The second reason is your boat is doing exactly what mine was doing. Mine started like that and then progressed to where it would lose rpms and then just choke itself all the way out. It was a long slow death for that fuel pump. It got weaker and weaker over time, to where I didn't notice the depleting performance. When I put the pump on it was an "Its alive" type of moment.
I don't know if the factory has changed these pumps since I ran a mud motor. The pump was never designed for that kind of head. Head meaning the vacuum needed to draw the fuel from the tank, through a filter and up to the engine. In the application on my boat it was way too much and wore the pump completely out. That problem started at about 130 hours and became severe at 150. I got on MMT and they all said "Read this thread Dumb @$$". I didn't believe it but tried it. Done deal! The boat came alive and I never had an issue.
Also anyone considering an electric pump, put two on when you do. If one fails you need only hit a switch and you're back in business.
Last edited by wal1809; 09/23/15 01:53 AM.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: wal1809]
#5942796
09/23/15 05:48 PM
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bhunter
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If the fuel pump is failing I would suspect it would be under warranty. I am not so quick to jump on a "Fuel gone bad" theory right now. The main reason is I know you have had blue stabil in it the whole time. The second reason is your boat is doing exactly what mine was doing. Mine started like that and then progressed to where it would lose rpms and then just choke itself all the way out. It was a long slow death for that fuel pump. It got weaker and weaker over time, to where I didn't notice the depleting performance. When I put the pump on it was an "Its alive" type of moment.
I don't know if the factory has changed these pumps since I ran a mud motor. The pump was never designed for that kind of head. Head meaning the vacuum needed to draw the fuel from the tank, through a filter and up to the engine. In the application on my boat it was way too much and wore the pump completely out. That problem started at about 130 hours and became severe at 150. I got on MMT and they all said "Read this thread Dumb @$$". I didn't believe it but tried it. Done deal! The boat came alive and I never had an issue.
Also anyone considering an electric pump, put two on when you do. If one fails you need only hit a switch and you're back in business. Easy way to troubleshoot a fuel pump; one gallon of fuel gravity fed to carburetor. Easy way to tell if carburetor; runs dam good with choke on.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: bhunter]
#5942853
09/23/15 06:22 PM
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Joined: Aug 2005
Posts: 11,788
wal1809
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If the fuel pump is failing I would suspect it would be under warranty. I am not so quick to jump on a "Fuel gone bad" theory right now. The main reason is I know you have had blue stabil in it the whole time. The second reason is your boat is doing exactly what mine was doing. Mine started like that and then progressed to where it would lose rpms and then just choke itself all the way out. It was a long slow death for that fuel pump. It got weaker and weaker over time, to where I didn't notice the depleting performance. When I put the pump on it was an "Its alive" type of moment.
I don't know if the factory has changed these pumps since I ran a mud motor. The pump was never designed for that kind of head. Head meaning the vacuum needed to draw the fuel from the tank, through a filter and up to the engine. In the application on my boat it was way too much and wore the pump completely out. That problem started at about 130 hours and became severe at 150. I got on MMT and they all said "Read this thread Dumb @$$". I didn't believe it but tried it. Done deal! The boat came alive and I never had an issue.
Also anyone considering an electric pump, put two on when you do. If one fails you need only hit a switch and you're back in business. Easy way to troubleshoot a fuel pump; one gallon of fuel gravity fed to carburetor. Easy way to tell if carburetor; runs dam good with choke on. This man should be the brains of this outfit! He is talking some sense.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: wal1809]
#5942899
09/23/15 06:52 PM
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Guy
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I do not think it is the fuel pump, gravity does feed fuel to the motor, and you really only notice a difference (the surging) when it is ideling. My 7hp last year when it got messed up, it was surging bad, full throttle it was surging. So the mudbuddy has a small case of the surging. I'm run it this weekend with some seafoam and see how she does. Got my fingers crossed.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5942901
09/23/15 06:55 PM
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wal1809
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: bhunter]
#5942944
09/23/15 07:32 PM
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Fooshman
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Easy way to tell if carburetor; runs dam good with choke on.
You just solved my four wheeler problem. 
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5943003
09/23/15 08:17 PM
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duckbill
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I do not think it is the fuel pump, gravity does feed fuel to the motor, and you really only notice a difference (the surging) when it is ideling. My 7hp last year when it got messed up, it was surging bad, full throttle it was surging. So the mudbuddy has a small case of the surging. I'm run it this weekend with some seafoam and see how she does. Got my fingers crossed. Are you troubleshooting with fuel tank elevated higher than engine? If the tank is still in the front of your boat, you're not troubleshooting as has been recommended.
Yeah, don't listen to me. I'm just an idiot.
Lol. Duckbill that was funny! The dude up top has already taken lots of bone before this deer, both mule and whitetail.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: wal1809]
#5943674
09/24/15 03:06 AM
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Guy
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: duckbill]
#5943702
09/24/15 03:15 AM
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Guy
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I do not think it is the fuel pump, gravity does feed fuel to the motor, and you really only notice a difference (the surging) when it is ideling. My 7hp last year when it got messed up, it was surging bad, full throttle it was surging. So the mudbuddy has a small case of the surging. I'm run it this weekend with some seafoam and see how she does. Got my fingers crossed. Are you troubleshooting with fuel tank elevated higher than engine? If the tank is still in the front of your boat, you're not troubleshooting as has been recommended. I have not tried that yet.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5944578
09/24/15 06:08 PM
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wal1809
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I do not think it is the fuel pump, gravity does feed fuel to the motor, and you really only notice a difference (the surging) when it is ideling. My 7hp last year when it got messed up, it was surging bad, full throttle it was surging. So the mudbuddy has a small case of the surging. I'm run it this weekend with some seafoam and see how she does. Got my fingers crossed. Are you troubleshooting with fuel tank elevated higher than engine? If the tank is still in the front of your boat, you're not troubleshooting as has been recommended. I have not tried that yet. You're killing me.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: wal1809]
#5944652
09/24/15 06:44 PM
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Guy
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Why? I haven't done anything yet, been working all week and been busy after work. But my next thing I'm going to do is burn a tank of gas with seafoam in it and see if that fixes it. I may try that idea to see if it is the fuel pump first if it is not too much trouble, but have not even looked at it yet.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5944763
09/24/15 07:58 PM
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duckbill
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If you just hold out a little bit longer, Wal will get to a point where he can't stand it anymore and he'll come over and fix it for ya.
Yeah, don't listen to me. I'm just an idiot.
Lol. Duckbill that was funny! The dude up top has already taken lots of bone before this deer, both mule and whitetail.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: duckbill]
#5944765
09/24/15 08:01 PM
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Guy
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If you just hold out a little bit longer, Wal will get to a point where he can't stand it anymore and he'll come over and fix it for ya. Ha ha, I really wish I lived close to Wayne.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5944767
09/24/15 08:02 PM
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Guy
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Really appreciate all the feedback. 
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5949774
09/28/15 02:55 AM
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Fooshman
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Fooshman]
#5950137
09/28/15 01:54 PM
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Guy
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Nope, messed with it a little bit but ran out of time. Momarsh running like a sewing machine, so she got the nod this weekend. I'm going to take it out scouting and run a tank of seafoam thru it and see how that works, if that does not solve the issue I'll dusccoect the fuel line and test to see if it is the fuel pump as reccomended, but I'm not messing with that if I don't have to. I'll let you guys know how it works out.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5951655
09/29/15 02:22 AM
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Charlito
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That damn boat needs a duck lease...
the thing about baiting is, even a rookie hunter could have a 170 bird season if they bait holes
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5960117
10/04/15 03:52 PM
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Guy
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Been running the blue sta-bil in it from the start. Have had it for a year now, just under 50 hrs. I did not take it out April thru August, but I started it once a month, but when I started it in September, it was probably a month and 1 or 2 weeks, it was then it started not running so good. It would spitter sput, but it runs, and after I took her out and ran her a few times she started running better. It would not idle, for the first time yesterday I tried to turn the idle up, 1 minute video below, you can see it idles, but rpms drop to 1,000, then go to 1500... Carburetor messed up from ethanol? http://i46.photobucket.com/albums/f143/F...zpsiik27ymi.mp4 Mohunter's hunting buddy saw this, he does not post on here, but he text me and said motor runs fine, put the idle back (that's messing it up), and check for the idle spring. That seems to be the problem. When I put the idle back, it runs great , it just will not stay idling, which was my original problem. Video below I'm not touching the throttle, but when it starts to die, I reach around back and tighten it up acting like the spring would do...Seems to be the issue, or at least a possible solution. He said on his go-devil, he had the spring, his mudd buddy it does not, so he put a spring on it. His motor is just like mine. I just find it strange it idled fine before without the spring, but all of a sudden now it needs it after 50 hours? http://i46.photobucket.com/albums/f143/F...zpsskohugoc.mp4
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5960176
10/04/15 04:38 PM
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Guy
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Yesterday had a lawnmower mechanic tell me it could be the idle jet is clogged.
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Guy]
#5960377
10/04/15 07:28 PM
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Fooshman
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Is your's a cdi engine?
I'm betting jet. Did you try to seafoam?
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Re: Mud buddy 35 hp not running so good, what you think she needs?
[Re: Fooshman]
#5960389
10/04/15 07:37 PM
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Guy
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Is your's a cdi engine?
I'm betting jet. Did you try to seafoam?
Yeah pretty sure cdi, and I have not tried the seafoam, that might be next. It runs good enough for scouting next couple weekends and running some sea foam through it, might as well try that. It is running better, I can get it to idle by turning up the idle screw, but when I do that it does not run as good, when I punch it and let off gas, takes a while for rpms to drop. Vs if I have idle set low (so low it will not idle), when I punch it and let off, RPM's come down fast, and revs better.
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