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Yearly Jet Motor Maintenance?


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What should I check on my outboard jet for yearly maintenance so I don't have problems during the season when I use my boat most? I know I need to sharpen my impeller, what does it cost to have this done or can I do it myself easily? Is there anything else that I should check out or have replaced yearly?

Just wanting to make sure my boat stays in good working condition since it's my first one and I don't know much about them yet. :goodjob:

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Floyd at Bear Skin Marine told me the best thing you can do is grease after each use, this chases the water out with fresh grease.

Remove the gasline and run the carb dry each time you use it.

Also if storing the motor use foggin oil.

The impellor made need sharpening every two years. Unless you run lots of gravel and sand.

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Floyd at Bear Skin Marine told me the best thing you can do is grease after each use, this chases the water out with fresh grease.

Remove the gasline and run the carb dry each time you use it.

Also if storing the motor use foggin oil.

The impellor made need sharpening every two years. Unless you run lots of gravel and sand.

What is foggin oil? Is this the same thing as Stabil?

I'm definitely going to sharpen the impeller this year. The guy I bought it from hadn't done it for a while I don't think.

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I have a jet boat that I got new from Perry's Marine in Bourbon Mo.It has a 90 hp Yamaha 2 stroke motor.

Mike Perry told me if I run it at least once a month,there is no need to winterize.

He does advise adding Sta-Bil to the gas,as well as Yamaha's Ring Free fuel additive,year round.

After each use,lube the bearing of the jet pump to purge water out!

Be sure to check and adjust the shims on the impeller for proper clearence,and operation.

Be sure to check the sleeve that the impeller sits in,if it is badly scarred,it is only about a $50 dollar replacement.

Here is another resource,these are the guys who have the patents.www.outboardjets.com

The only good line is a tight line

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Appreciate the help guy. I need to get my jet shimmed and sharpened I know for sure. I seen where it's recommended you replace the water pump impeller every year too. Does anybody do this and is it easy to do on your own?

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i havent had a jet for a few years but regardless,replacing the impellar every year seems a bit excessive to me. unless you use it one heck of a lot,i dont see the point. just be very aware of you tattle tale and keep an impellar on hand in case your motor quits spitting a steady stream from it. i may be wrong and wont be mad if someone can dispute it,but to just replace the thing every year seems like throwing money down the crapper.i check my boat every year before i take it out and fix whatever needs fixing before i hit the water.i ve only replaced my impellar once in 15 years and the motor is stronger than ever. i suppose the use that a jet gets may dictate

more wear and tear on an impellar but i dont think id just replace em carte blanc every year. maybe some of the regular jetters could shed some more light on this

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Appreciate the help guy. I need to get my jet shimmed and sharpened I know for sure. I seen where it's recommended you replace the water pump impeller every year too. Does anybody do this and is it easy to do on your own?

Are you talking about the pump for the cooling system?If so I don't think so.I trust Perry's Marine for jet boat info,He has been in the biz a long time.Perry's Repair 573-732-5563.

.I see you are in or near Owensville,Perry's isn't too far away.You could stop by or call him with questions.He's a good guy.

Another note on impellers for your jet drive,when pulling a holeshot or jumping up on plane.If you feel the boat "slipping"and sharpening your impeller doesn't help you might have some other issues going on causing air to get to the impeller.A good fix and upgrade in performance(but expensive to the tune of about$500.00 bucks)would be to buy a stainless steel impeller.They are thinner and cut through the water better.Harder,resisting nicks better than stock aluminum.And they are a 4 pitch rather than 3 pitch(4 blades)

which draws a lot more water per rev,therefore pushing more water.

I got one and will always use them,not to knock the stock stuff which has worked perfectly fine,I'm admittedly a gadget freak.

Bruce

The only good line is a tight line

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I was referring to the water pump assembly and impeller, not the impeller in the lower unit. On this website, http://www.scottandjenn.com/etomite/index.php?id=22, they recommend replacing the water pump assembly and impeller yearly too. This site was recommended to me for learning about maintaining my motor.

I read where the stainless impeller just increases the life of it on smaller outboards. The bigger motors are the only ones that have a noticeable performance increase. I'm not sure how big your motor is, but I only have a 50hp Yamaha on my boat.

What are the price differences between aluminum and stainless impellers?

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