thread size?

infomac

Recruit
Joined
Sep 21, 2013
Messages
1
while changing leg oil in a Yamaha V6-4.3 unit and using a refilling lube kit/pump from Evinrude/Johnson is there a difference in thread size at the bottom plug not allowing the pump unit to connect? If so, can the leg be filled by slowly pumping new oil in through the top plug without any problems? B.
 

robert graham

Admiral
Joined
Apr 16, 2009
Messages
6,908
Re: thread size?

The Yamaha threads are different from Evinrude,etc....Walmart carries the pumps with the Yamaha adapter for about $7.00, so get one and fill it from the bottom for sure....it's the right way to do it!....good luck!
 

boscoe99

Lieutenant Commander
Joined
Aug 22, 2013
Messages
1,785
Re: thread size?

And don't be in a hurry filling the gear case. Fill slowly until air bubble free oil comes out the top hole. Then, take a five minute break. Come back and top it off once more.

The thick oil needs to find its way to sll of the nooks and crannies within the gear case.
 
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