| Subject | Date Asked | Expert |
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| 40 hp Evinrude tracker | 2/21/2008 | Jeff Grigg |
Q: This motor will idol ok but when I give it the gas it just acts like it runs out of gas and will not ...
A: Rick if the engine has been sitting any length of time I would suspect the carbs are gummed up. Also ...
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| ethinol fuel | 2/21/2008 | Jeff Grigg |
Q: I have 70,s & 80,s outboards and have seen extensive engine damage that I was told caused by ...
A: You should not have extensive damage from ethanol unless it is in greater concentrations than 10%, ...
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| 1985 Merc 170 2bbl carb dripping | 2/20/2008 | tyler boehner |
Q: I just bought this boat and after each attempt to start, the two venturis seem to be just dripping ...
A: You should be fine. Running under load for 35 min should show a lot more milkiness if there is a ...
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| 25hp boost | 2/20/2008 | Jeff Grigg |
Q: Jeff, i have a 2006 Mercury 25hp 4 stroke engine on my tracker boat. It seems to be struggling to ...
A: Tom to really get your boat running right you will need a tachometer. You need to prop the boat so ...
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| 1987 four winns | 2/20/2008 | tyler boehner |
Q: How expensive is a cracked exhaust manafold to repair? Is this a really bad thing?
A: It depends on the motor. The cost of the manifold itself will probably run around $600. Again, ...
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| Gear case bolts for 35 hp Mercury outboard | 2/19/2008 | tyler boehner |
Q: How many bolts attach the gear case to the upper power section of a 35 hp Mercury outboard? I can ...
A: I can't remember off hand how many bolts there are. If you are getting a little gap, you are ...
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| 45 hp classic 50 | 2/19/2008 | Jeff Grigg |
Q: I've been having trouble with rpm's and power. At idle can rev it up to 5000plus rpm but under load ...
A: Steve, NEVER, EVER rev the engine up in neutral, you can only damage it. First do a compression test ...
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| Transom Repair | 2/19/2008 | tyler boehner |
Q: I have a 1986 Searay Sundancer that I am in the process of having the transom and motor stringers ...
A: It may sound fishy, but he is right. Regular pressure treated plywood or even well sealed regular ...
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| 2002 mecury 200 saltwater outboard | 2/19/2008 | Jeff Grigg |
Q: what I believe is the oil buzzer is coming on as soon as I turn the key on, and stays on when I ...
A: The oil float should give you a beeping sound. You probably have one of two problems. Either you ...
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| 150 Johnson | 2/18/2008 | tyler boehner |
Q: Several years ago I bought a Ebbtide fish and ski. It had not been run in a couple of years. I had ...
A: Could be. A plugged filter or weak pump would cause that to happen. Another thing is if you have ...
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| 2001 merc 225 opti -making h2o | 2/18/2008 | Jeff Grigg |
Q: 23' whaler w/ 2001 225 optimax xxl (225 hrs) On plane running above 4000 rpm I noticed water coming ...
A: You can rinse the parts off with fresh water and soap then use an anti-corrosion spray. There are a ...
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| Over heating | 2/18/2008 | Jeff Grigg |
Q: How can I tell if the poppet valve is working prpoerly on my 1996 Mariner? ANSWER: It is a little ...
A: There should be some water all the time depending on the year of the engine. Basically it works like ...
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| johnson cuts out | 2/18/2008 | tyler boehner |
Q: I have a 1989 140 johnson vro with the oil disconnected. the problem is at full throttle it will cut ...
A: Does it cut out all of the sudden like it is loosing spark then regain it suddenly again, or is it ...
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| motor doesnt start | 2/18/2008 | tyler boehner |
Q: i have a 2000 mercruiser tahoe 220 it is injecting fuel and we also have spark but the engine just ...
A: First thing to look at is the kill switch. The motor will have spark with the kill switch off ...
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| Cable Steering Problems | 2/18/2008 | Jeff Grigg |
Q: After leaving my boat (old Haines Hunter) in the shed for 3 months, the steering has jammed. The ...
A: Steve, go back through my past answers, I have covered this in detail a number of times. If the ...
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| help | 2/18/2008 | Jeff Grigg |
Q: I have a 90 bayliner and a A 90 Force engine I want to put on but I do not have a wiring diagram. I ...
A: Jon, you really need to get a service manual. It will have all the wiring diagrams you will need ...
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| Primer bulb | 2/18/2008 | Jeff Grigg |
Q: Hey, I have an old 60 h.p. Johnson on a rebuilt lightning. We rebuilt it ourselves and used it for ...
A: If you have a built in tank, remove the fuel barb from the tank,in it you will probably see a spring ...
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| 1985 Merc 170 2bbl carb dripping | 2/17/2008 | tyler boehner |
Q: I just bought this boat and after each attempt to start, the two venturis seem to be just dripping ...
A: Can't really clean the carb without taking it apart. Best thing to do, is get a carb kit for that ...
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| Maybe fuel ploblem HELP!! | 2/17/2008 | Jeff Grigg |
Q: I bought a 16’ center console Key Largo with 50hp 2-stroke Yamaha. I purchased it Jan 2007. It ...
A: You may have more than one problem, you could have even scored a piston and cylinder running it with ...
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| Over heating | 2/17/2008 | Jeff Grigg |
Q: How can I tell if the poppet valve is working prpoerly on my 1996 Mariner?
A: It is a little difficult. If it is leaking out the weep hole the diaphragm is bad. If the water pump ...
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| outboard problems | 2/17/2008 | tyler boehner |
Q: Have a 79 evinrude lark just got the boat. It had been sitting up for about 6 months and was running ...
A: First of all, check the battery voltage at the starter when the starter is cranking. Make sure you ...
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| 100TLR79 - Evinrude | 2/16/2008 | Jeff Grigg |
Q: I have a boat that has been setting up for ±5 years. I cleaned carb's last year but it was still ...
A: I would rebuild the carb again with all new gaskets. Do a complete tune up including plugs, water ...
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| Wood vs Fiberglass Hull | 2/16/2008 | Jeff Grigg |
Q: I am in the process of buying a sailing boat to liveaboard and would love to buy an 50s/60s classic ...
A: While most of my experience is with outboards I do have some large sail experience. I lived on a 47 ...
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| omc outdrive shift cable | 2/16/2008 | Jeff Grigg |
Q: Jeff I forgot to ask you one more thing about the shift cable installation. after it is installed ...
A: Here too you will need a good service manual to follow the entire procedure. I'm sorry I can't help ...
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| 1986 OMC Cobra OutDrive Shift Cable | 2/16/2008 | Jeff Grigg |
Q: Jeff I hope you can help me with this problem. I have an Omc 4.3 cobra that I have To change The ...
A: Jim it is a job way beyond my being able to tell you on this site. The factory OMC Cobra service ...
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| Volt problem with the tps | 2/16/2008 | tyler boehner |
Q: I have a 2000 Mariah 244 jubilee with a Mag 502 EFI w/ a bravo 3. Lately ive been having problems ...
A: I don't know the specifics about the voltage readings of the tps. When it comes to anything with a ...
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| tilt/trim | 2/15/2008 | tyler boehner |
Q: I might buy a late 80's Seaswirl. The only problem with the boat is the tilt/trim moves very slow. ...
A: It is hard to tell without running some tests but I can tell you that when those motors go bad, they ...
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| 1975 johnson15hp outboard | 2/15/2008 | Jeff Grigg |
Q: I am having problems with cooling water. I replaced the whole water pump last season. I am getting ...
A: Jim, first of all check that the hose for the tale-tell is clear. Small insects like to crawl up the ...
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| XR4 - Low Water Pressure | 2/15/2008 | Jeff Grigg |
Q: I have a mercury XR4 which shows very little water pressure. 0-2 psi at idle and maybe 6-8 PSI at ...
A: Duke, I already answered your pump application question. You need to stop asking questions and do ...
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| Hard Starter/High Heat | 2/15/2008 | Jeff Grigg |
Q: I have an 87 Mercruiser 3.0L. It starts hard but runs OK after warming up. After the boat is warm ...
A: Jerry with a boat of that age you must make sure the engine is in tune and "up to snuff" before ...
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| fuel usage | 2/14/2008 | Jeff Grigg |
Q: I have a Johnson 140 about a 1984 model and it seems to use far more fuel than it should or used ...
A: Les, you got me with the metrics. The 140 was not a very fuel efficient engine, not bad but not good ...
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| Water in oil | 2/14/2008 | Jeff Grigg |
Q: I have just traded for a thundercraft citation boat. 4Cyl 3 LTR GMC OMC Cobra I/O 1988. There is ...
A: John the water would be sucked into the engine when the exhaust valves open. You could have both ...
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| 1975 evinrude 85 hp outboard motor | 2/13/2008 | tyler boehner |
Q: Ok, here is my problem. When starting the boat, everything seems to go fine, but it does not kick ...
A: If I understand the question, the starter isn't turning the motor fast enough to start. What you ...
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| Mercruiser Thunderbolt IV timing | 2/13/2008 | tyler boehner |
Q: How do you time a 454 with thunderbolt IV
A: You have to bypass the thunderbolt system or every time you change the timing, the computer just ...
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| Yamaha model 704 shift/throttle control | 2/13/2008 | Jeff Grigg |
Q: Shift is difficult to move to neutral from forward or reverse and also often overshoots to the ...
A: If you can move the shift linkage easily at the engine then you can rule that out. Similarly if the ...
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| XR4 - Low Water Pressure | 2/13/2008 | Jeff Grigg |
Q: I have a mercury XR4 which shows very little water pressure. 0-2 psi at idle and maybe 6-8 PSI at ...
A: When you run with a jack plate it totally changes the water flow to the lower unit. So it is good ...
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| 1989 Bayliner | 2/13/2008 | Jeff Grigg |
Q: My 1989 bayliner ran out of hydrolic fluid I filled it up and then we went out on the lake and then ...
A: James you didn't post what kind of engine, make, year, etc. so I will just guess. If you have an ...
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| interupter switch adjustment for mercruiser | 2/13/2008 | tyler boehner |
Q: I have a 1985 Blue Water 16 ft boat. When shifting from nuetral to forward or reverse the engine ...
A: If the motor is dieing, the interupter switch is doing it's job. You probably need a new cable. ...
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| 98 50HP Merc. Force Throttle issue | 2/13/2008 | tyler boehner |
Q: We just got this boat and motor a week ago. It has been running rough (skipping and such)so we have ...
A: If it is a broken cable, it isn't terribly tough to replace yourself but can be a headache if you ...
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| XR4 - Low Water Pressure | 2/12/2008 | Jeff Grigg |
Q: I have a mercury XR4 which shows very little water pressure. 0-2 psi at idle and maybe 6-8 PSI at ...
A: Duke, the lower units for that motor are interchangeable. Depending on year and which lower unit the ...
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