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Loose Upper A-arm on Apex: Is it Normal?

xcsp

TY 4 Stroke Junkie
Joined
Mar 10, 2004
Messages
558
Location
Wisconsin
I had my Apex up on the lift checking it over and noticed the upper left a-arm is loose at the mounting point to the chassis. Checked the bolt & nut with a torque wrench and it's set to specs of 27 ft-lbs per the manual.

Any suggestions on how to correct other than a return trip to the dealer?

I have the sled apart to access the bolt(which means everything above the battery).

With a wrench on the nut or bolt, they rotate freely, checked the right side and that one turns, but takes some effort.
 

Normal play?

Sure doesn't seem normal to me. With 0 miles and the other 3 a-arms are fine, I don't buy it. Unacceptable!!!

I didn't measure the "play" for how loose it feels but if you hold the a-arm, it can be moved front to back maybe an 1/8th inch and where I really noticed it was if I grabbed the spindle (Yamaha calls it a knuckle?) at the bottom below the zerk and with the other hand at the top, it moves about the same distancein and out. The right side suspension has a very small, if any, movement.

Just doesn't seem right to me.
 
"Play" when on the ground?

Hey NB, good question, I will check it out. I did a bit more investigating and using a feeler gauge, there seems to be the same amount of space on both the left and right a-arms, about 1.4mm. Just that while the sled is up in the air, I can move the left arm forward and back, not the case with the right side-it won't move, maybe that'll change once I get a few miles on it?

Now to check it out with it on the ground.

"Update"-checked it with the sled on the ground, same thing. Looks like all the parts are there-bushings and all.
 
There are plastic washers at the ends of the arms on the rx. I don't know if they are still used on the apex but if one was not installed you could have the play you describe.
 


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