Yamaha 70 Hp 1989 Outboard Motor Manual

Yamaha 70 Hp 1989 Outboard Motor Manual Average ratng: 3,9/5 5360votes

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Your Yamaha 70 HP outboard takes you places, or at least it did at one time. Now the get up and go just got up and left. That is what we here at Boats.net call an easy fix.

Yamaha outboard manuals sold online. Service and repair your motor with a Yamaha outboard manual. Yamaha Outboard Repair Manual 1984-1996 2 to 250 HP 2 & 4.

Yamaha 70 Hp 1989 Outboard Motor ManualYamaha 70 Hp 1989 Outboard Motor ManualYamaha 70 Hp 1989 Outboard Motor Manual

Whatever the issue is with your motor, we stock thousands of OEM Yamaha outboard parts to solve any problem. Whether it's routine service or a bottom end rebuild, we have the parts you need at a fraction of retail pricing. So, what are you waiting for? Get that engine idling and get back on the boat. Here's how you start: Make sure you have the correct model number or use the handy reference chart to select the right diagrams and search our online parts fiche for the correct parts to fit your motor.

Even though they use some of the same parts through different models, it's not always the case, so confirming your model number will make sure the parts fit properly the first time to put it in. Now just confirm your order and we ship them directly to your door and we even have free shipping on qualified orders! Need assistance?

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There is not water coming out the pee hole, water is sputtering out of the exhaust (I hope this means ther is circulation of water and I do not need a water pump) but I stuck a match stick in the hole to see if a dirt dobber had clogged it. It appears clear, at least for about an inch and a half. There is not water coming out the pee hole, water is sputtering out of the exhaust (I hope this means ther is circulation of water and I do not need a water pump) but I stuck a match stick in the hole to see if a dirt dobber had clogged it. It appears clear, at least for about an inch and a half. What other things can I check? I am not a mechanic, these are the only things I know, clogging and water pump.

How can I tell if the water pump is working if sputtering out the exhaust does not mean anything? Best Answer: It is good you have a book on outboards, but that information appears very general. Yamaha Yfm 350 Service Manual.

The information in a workshop manual is copyright for fifty years from first publication, so naturally that info is not freely available. Second hand manuals are cheap and you could always try your local library. If you can hold your hand against the head while operating normally it probably has enough water flow. If the paint is discolouring and you get burnt touching the head there is a water flow issue - and imminent engine failure. If your water pump impellor has not been changed out for two or three years just do it - it is a normal service item, and cheap.

The impellor doesn't wear out normally with less than commercial use (it is a centrifugal pump at any revs over idle) but sitting for great lengths of time can 'set' the vanes, and dry running for mere seconds will fry them. There needs to be a huge amount of sand and grit through the pump before it is physically worn. The tell tale being blocked tends to suggest infrequent or lack of flushing after use.

Often a few salt crystals or a bit of sand is enough to block the flow - which is only a small percentage of total flow. If this becomes an issue and you find the tell tale often blocks you should check the thermostat for crud, and in some cases the water jacket itself will be full of salt and sand.

That can only be accessed through head and sidecover (in some types) getting pulled. That is when the workshop manual is really useful. First, if the tell tale hose is longer than 2 inches and can be reattached, disconnect it and check the hose for blockage. If you verified that the tell tale spot hose is not obstructed and neither is where it connects, there are only two possibilities: #1. Obstruction caused by improper installation of water pump impeller causing the blades to break or broken blades from a worn water pump impeller lodged in powerhead of the cooling system. Improper installation of an impeller usually occurs by 'do-it-yourselfers' who have no clue what they're doing.

Yfm35fgy Owners Manual. Weak or failing water pump impeller that does not proved sufficient water flow and pressure into the powerhead. Here I must highly stress that you buy a service manual for your model and HP of outboard. You might not be a mechanic, but you can study on how to troubleshoot issues involving your outboard with the service manual. That way you can troubleshoot and determine what issues you can confidently fix yourself and what issues will require a service shop to fix. Otherwise, you are completely ignorant of the issue and completely reliant on the service shops for providing information about the problem. Armed with a good understanding of outboards and basic troubleshooting procedures of them, you can help them find the problem faster and also avoid getting handed a shovelful of BS if you stumble into a bad service shop.

Straighten out a paper clip and put it up the hole with the motor running make sure u dont run it through the robber hose! The inpeller is circulating water or nothing would be coming out orf the gearcase. U wnt through shallow water and sucked up same sand.

Dont over complicate a simple problem man 5 years as a honda marine mechanic i saw this 10 times a week unless someone was stupid enough to run the motor out of the water! Which if u did u need a new water pump and housing cause u melted it and spun the liner. • Tell us some more • Upload in Progress • Upload failed. Please upload a file larger than 100x100 pixels • We are experiencing some problems, please try again. • You can only upload files of type PNG, JPG, or JPEG. • You can only upload files of type 3GP, 3GPP, MP4, MOV, AVI, MPG, MPEG, or RM. • You can only upload photos smaller than 5 MB.

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