1993 175 Evinrude Fastrike

[kulhndluke8]

I am new to this forum. I want to start out by thanking everyone who replies to my problem. I can start this engine in the a.m. and will idle fine. Get ready to take off and will run for about a mile or so and then sputter and die at speed. After I bildge the wall of water that comes in the back, sometimes it will start back up and sometimes it wont. When it starts you can take off and it will sputter and die again. If I try and take off slow it will eventually get up to plane and run fine for the rest of the day. I have replaced the primer bulbe 2 times and have run all new fuel lines from both tanks back to the front of the engine. I dont feel that the primer bulb is the problem. Its like once it works itself out it will run great for the rest of the day, then turn around and do it again the next day same problem.

 

[Dhadley]

Re: 1993 175 Evinrude Fastrike

Welcome!!

"Both tanks"? Are both going into a filter with one outlet?

How do you switch from tank to tank?

Is the bulb an aftermarket or a BRP / OMC bulb?

 

[kulhndluke8]

Re: 1993 175 Evinrude Intruder

Re: 1993 175 Evinrude Intruder

Man, what a quick response. Thank you !!! There are 2 tanks, a 17.5 gallon under the seat and a 35 gallon in the back. When I changed the fuel lines there was no filter anywhere, I did not put a filter on the line. I just ran the same length and diameter hoses and installed new clamps. The tank switch is like whats in the old ford trucks that you switch on the floorboard. It is located next to the drivers seat. As far as the primer bulb I bought it with a length of hose at a marina. I think it said Atwood. Blue package.

 

[kulhndluke8]

Re: 1993 175 Evinrude Fastrike

Let me add one more thing to this. After the engine dies at speed When I do try and start again and it wont fire right up I can chaoke a couple of times and it floods the engine quickly.

 

[Dhadley]

Re: 1993 175 Evinrude Fastrike

OK, I see a couple of potiental issues, probably none of which will solve our present problem but we'll work on it. First I'd get an OMC / BRP bulb. Nothing aginst Attwood but I've gone thru this before.

Next I'd take a real close look at that valve. The problem is the ID inside the valve itself. That motor requires a 3/8" ID in the whole fuel delivery system to the pump. Many times those valves have 3/8" fittings but inside they can be a s small as 1/4". A fuel restriction is not good.

Just for testing lets run a line from the 35 gallon tank right to the motor. Once we get the running issues fixed we'll address the valve.

How about spark plugs? Which ones are you running? What octane fuel?

If the motor floods that easily we might have carb issues. Are they clean? It might not hurt to clean them and put in new kits. Is this a "new-to-you boat or have you had it a while?

I know -- too many questions.....

 

[kulhndluke8]

Re: 1993 175 Evinrude Fastrike

I bought this boat last June from an older gentleman. He bought it new in 1993. and fished out of it around 5 times then put it in storage in 93. He got the boat out once a year and fished out of it a couple times each year. The rest of the time it was in storage. Mint condition. I'll bet the motor only had aprrox 20 hrs. on it when I bought it. The day I bought it I think that it probably had some bad fuel. Once we got it running it ran like a champ up until just a couple of months ago. I run Champion plugs QL77JC4 and I change plugs once a year regardless. I run mid grade fuel and about every 3rd tank I will use sea foam. I suppose that the carbs could be gummed up with all of the time this boat sat in storage but I dont understand why this would happen all of the sudden.

 

[Dhadley]

Re: 1993 175 Evinrude Fastrike

Well, if it were mine I'd clean the carbs. It's possible some crud broke loose and is floating around causing an intermittent problem. I'd do it as a preventave measure. The easy flooding always raises a flag to me on those type carbs.

Good choice on the plugs. The fuel choice is OK but I'd use 87 as long as it's not enhanced with ethonal.

When it starts to die does it pick up if you tap on the primer (choke)?

 

[kulhndluke8]

Re: 1993 175 Evinrude Fastrike

No, it just floods the engine more.

 

[kulhndluke8]

Re: 1993 175 Evinrude Fastrike

Heres one more question. I have had people talk about the fuel pump. Is this pump on the engine or in the tank. And what kind of fuel pickup is in the tank. Is the fuel pickup a hose and could it have a screen on the bottom of it that could be plugged up?
I really appreciate all of your help. I know it has to be something little it is aggravating. I dont want to get run over on the lake.

 

[Dhadley]

Re: 1993 175 Evinrude Fastrike

If tapping the primer (not pushing and holding it) floods the motor we may have a carb issue. If the motor floods that easily the fuel pump (which is on the motor) and the pick up should be OK. There is an anti-siphon valve in the fitting of each tank which can stick and cause a fuel starvation situation. But if that's the case tapping the primer shouldn't flood the motor because there wouldn't be enough fuel there to run it, let alone flood it.

 

[HighTrim]

Re: 1993 175 Evinrude Fastrike

Pay special attention to those carb jets during your rebuild. Follow Dhadleys advice, he's one smart cookie

 

[kulhndluke8]

Re: 1993 175 Evinrude Fastrike

Alright here we go. I drained & cleaned out gas tanks. Tanks were super clean. I checked both of the fuel pickups in the tanks and both were clean, no debris at all. I am changing the fuel lines which are 3/8" i.d. x 1/2" o.d., these lines are rather large. Can I use regular 3/8" i.d. fuel line or do I have to go back with the large i.d line.? Will this smaller line collapse when a vaccum is pulled from the engine for the fuel. I have also changed the plugs, which when I was changing them I had one plug that fell apart into two peices ( broke on the ceramic stem ). I pulled it out straight and did not break it, it just fell apart. Where it fell apart there was no sign of black or burned marks. After doing all of this I am going to the lake on Saturday to see if it works. I am really grasping for straws her. Thanks for all of your help.

 

[Dhadley]

Re: 1993 175 Evinrude Fastrike

3/8" ID hose is fine. Make sure all the fittings are 3'8" ID also. Try not to use any 90* fittings.