97 Sx oil pump

Yamahasrx700

Member
Joined
Feb 11, 2004
Messages
611
Age
57
Location
Channaho, Il.
My Sx 700 drinks oil. The oil pump is set to the recomended spec. The last time out it ran 25:1. Just as a reference my 2002 SRX runs between 75:1 and 100:1. Any body know what ratio its supposed to run? Should I adjust past the factory spec?
 

They are know to be hogs on oil. I thought my buddies sx pump was gone also with the amount of oil it was using. Upon further reading i found to set the pump a 1MM or 2 before the line as the factory ran them rich. Did this and the sled used about 50:1 on a tank of gas to oil. Much better and it ran a whole lot better also!
 
I believe that if the pump fails it pumps oil at the max level to prevent a lean condition. When this happened to my 1997 SX700 I replaced the pump and that solved the problem.
 


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