help! 70 hp yamaha

fuzzyzuk

Cadet
Joined
Apr 25, 2011
Messages
29
baught a new motor and am having some issuses
seems to be a water leak between the cylinder head and i think its some sort of water jacket? when replacin that gasket do i have to also replace the cylinder head gasket?
and another problem im having is fuel leaking from this top plate with the two screws (pictured below) on the middle carb does anybody know why its leaking from there and how to fix thanks!!
yam1.jpg

yam.jpg
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
9,282
Re: help! 70 hp yamaha

A new motor will have a warranty
Take it back and have them work on it
 

Pugetsound

Lieutenant Commander
Joined
Apr 5, 2009
Messages
1,824
Re: help! 70 hp yamaha

If you take the heads off to replact the gaskets under them,I suggest you replacce the head gaskets also and clean any deposits in the water passages. If the head leaking has deposits in it then do both sides cost is minimal and satisfaction great. Have fun
 

bloodylongair

Recruit
Joined
Aug 10, 2011
Messages
2
Re: help! 70 hp yamaha

Having the same problem with mine, the fuel is leaking out somewhere around the carbs and running out the back of the drain holes. Did u have any luck fixing the fuel leak?
 
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