Does anyone know the best way to diagnose a bad front motor mount on a 2013 SG? Motor sings when rpms are 2000 for greater but absolutely chatters my teeth at a stop. What else could it be if not the mount? Doesn't feel like a miss at all. Thanks for your help in advance.

 

I would re torque the mounts first, including swing arm.
It being a 2013 year model I would take it to the dealer and let the warranty cover it.
Why spend the time to find the problem then pay for it and do it your self when it's free.

 

Did you try to google it?

 

google what?

 

The motor mounts on the newer framed bikes rarely go bad.
If you are getting excess vibration (and most will tell you it's normal at idle) check that your header/exhaust is lined up and not touching the frame and that your drive belt is at the proper tightness.

A lot of the time people force the mufflers into the hanger mounts during installation. This will cause a ton of vibration.
If you find this to be the case, loosen every bolt in the exhaust system (header included/trans bracket mount too) and check for bound up parts.
Work your way forward rear to front tightening everything back up.

 

Another thing to look for is an object stuck between the frame and the engine. I had a similar issue so I took it to a dealer where they replaced the motor mount and a did couple other things just in case but it was still vibrating bad when I got it back from the dealer. PO'd of course but when I got it home I started digging around and found a 1/4 x 1 hex head screw between the frame and the primary.

 

Good catch!


OP. I have observed vibration and shaking while tuning, the closer I get to target on the individual cylinders, the more it smoothes out. just a possibility to entertain if the mounts turn out to be a dead end. Good luck and stay after it, if it was right once it can be right again.

 

When you sings...

It makes me think of a dry top front motor mount.
It just a ball bearing Heim joint, they come with no lube.

I took mine off and soaked it in some oil, then worked it until a couple tiny air bubbles came out, then wiped off. It's been quiet ever since.

 

all good suggestions....thanks so much. I will look at all of this and report back to historical sake.

 

ok, turns out a heat shield was resting on the floorboard bracket. Had a pretty good groove worn in it to boot. Was obvious from the groove that this is where the issue was. Thanks for all the suggestions everyone.