Yamaha Lower Unit Oil Yamaha Lower Unit Oil
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    Yamaha Lower Unit Oil
from Jwjr (67.140.249.227)  
1/2/2005 6:10:00 PM

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 I am a rookie boat owner. Need some advice.


I have a 2004 Yamaha VMax 200 OX66. I am wanting to change the oil in the lower unit.


1. What type / brand oil is best?


2. Is there a secret to getting the drain and vent plugs out of the motor?


Any advice would be appreciated.


Thanks,


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   No Secret from SWaynePoole (64.136.27.226)  1/2/2005 7:36:00 PM
  Very simple. Go to Wal Mart and buy the Lubri-Matic Pump Kit[make sure you get the 1 that fits Yamaha] for this operation. The Pump fits a 1 Quart container of Oil which you can also get at Wal Mart either in Lubri Matic or Pennzoil,either will do. Place pail under engine,remove lower plug with screwdriver then upper plug and let drain. Screw fitting on pump to lower plug hole and pump until it comes out the top plug hole. Replace top plug and remove fitting and replace lower plug. You will loose a drop or 2 but not to worry it is still good and you have saved yourself some money and your pump kit is reusable and a Qt will do 2 times.


   Lower unit oil from Cutout (65.176.137.192)  1/2/2005 7:36:00 PM
 Jwjr I think that Amsoil makes the best lower unit lube on the market.And should out perform any of the O.E.M. lower unit lubes.I not only run Amsoil in my boat but also run it in everything I own.If you would like to look at or purchase some online go to lubedealer.com/bdstacey. The product code is ALU-QT for the marine lube.

Not really any tricks to geting the plugs out other than getting a BIG flat head screw driver and I mean 12 to 14 inches long.When you are ready to refill to lower unit pump the fluid in thru the bottom hole untill it come out the top.Then put the top screw in first,this will help keep the oil from running out the bottom hole as fast when your pulling the hose off. Good luck

Brad


   Lower Unit from Mel in NC (24.211.211.115)  1/2/2005 8:40:00 PM
 I strongly suggest you replace the o rings that are on the upper and lower screws. The most common reason water gets in the lower unit is through the o rings. You can get them at any boating supply place and they are cheap. Change them every time you change your LU oil. I also recommend Amsoil lower unit oil. I don't sell it, I just use it.


   There is no from Danco  1/3/2005 8:36:00 AM
 such thing as performance in a gear lube. All the claims of increased rpms are pretty much a myth. If you use very light lube you can potentially pick up a very few R's but at the expense of the gears. Stick with a good 90wt lube made by any of the manufacturers mentioned by SWaynepool.


   lubri matic pump from rich (68.1.104.196)  1/3/2005 6:28:00 PM
 I bought one of those lubrimatic pumps and the threads are to big for the yami. It says for most lower units but doesnt give a name of builders. So if you cant use that how do you know you got enough oil in there. it seems to come out the top after I put some in but that might just be pressure built up in the lower unit and its burping. Any suggestions


   Lubri-Matic Pump from S.Wayne Poole (64.136.27.226)  1/3/2005 6:49:00 PM
  Rich they make 1 with a fitting for Honda and Yamaha Engines. You need to check to make sure you get the right 1


   Performance from Cutout (65.176.161.59)  1/3/2005 10:07:00 PM
 A 90 wt. is a 90 wt. one is not lighter than the other.And no parafin and a better base stock( PAO esters) = better performance. Stay away from dino oils if you want your engines to last longer.


   Yammie lower unit oil from DonH  1/4/2005 11:33:00 AM
 Another vote for Amsoil. Use it in my 150PROV and like it. Get the pump kit noted above. Works greats. Last to get the screw out go to sears and get the largest flat bit (screewdirver head to use on a rachet wrench)they have for a 1/2" ratchet. Using the ratchet and bit works much better than a foot long screwdriver.


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