hey guys,,, a few questions, i just bought a new grizz ,, so far love it,, i've owned a king quad, also sportsman 600, this bike definetly rides nice,, question,,, i've heard that the grizz, use to boil the gas,, has that being taken care of. ?? is so it's doing it again,, i just went out sunday and rode hard all day, ( 4 hours), pulled back in drivway only to hear this wierd sound, found it comeing from the gas tank,, opened with a over heating sound , and the sound went away!!! i did ride it hard put i've never heard that from any other bike,, any idea's grizz 700fi thanks

 

What you are experiencing is discussed in great detail here...

 

I read some of the info on Highlifter. Most of it is wrong. The gas is boiling and Yamaha has a problem. It did it on my 700FI. The fuel system has no return line and the pump is in the fuel tank. So no pressure is required to get fuel to the pump. Fuel should not boil and it is do to getting to hot. Has anyone read about the turnover valve. Some of you will call it a check valve or vent valve. Read the service manual. As I get time I will locate info on the FI adjustments. Its in here somewhere. I think under Grizz cold start problems. The FI (MAP) can be changed. Grizz is set to "0" from the factory and can be adjusted to 120 or so. This will also run head temps and motor temps down some. (More fuel,RICH cools the head. Gas should never boil. Look back at the 660 it was recalled for the problem.

 

Read "Gizz 700 Spark Plug and Idle speed info". You will learn how to adjust the FI system and read and set RPMs on your display pod. Your dealer should give you updates to the service manual if you have one.