I have had my PC5 grounded at the left side subframe member for the past 5 years with no problems. There is an open bolt hole in that part and I just filed away the paint and tightened a screw in it through the ground wire eye.

Now I'm removing the subframe member permanently so I need a new PC ground. You can see my PC5 ground wire eye (wraped in blue tape) and where the wire is coming from in the pic below. The PC is installed under the seat and the ground wire is routed from there, under the fuel tank, through the frame and comes out behind the engine.

I could go with the lower coolant reservoir bolt (white arrow) but I would have to do the PC coolant reservoir ground mod to make it a reliable ground. Also, the wire would be stretched across the engine compartment with just barely enough length to reach the bolt.

My second choice is the eye that protrudes from the cylinder head gasket (yellow arrow) because it will not require the wire to be stretched. I'm not sure a metal gasket is the best ground though.

First choice is the rear bolt hole where the left side subframe member was bolted (black arrow). That would be the neatest ground but it has factory loktite. Does that look like a good place to ground if I sand off the paint around the bolt hole so the ground eye makes contact? I'm pretty sure this is what I will try but just thought I'd ask opinions.

* Last updated by: Rook on 11/16/2014 @ 2:55 PM *

Looks good to me.What are ya gonna do with that subframe?I mean....it IS part of the frame....which holds the motor as well......?Is it only there to allow the harness to attach along there?I'd be cautious about removing certain parts that work together.....if indeed these do.If it were ONLY a harness attachment rail...I'd think they would come up with something a little less restrictive for getting to the top of the motor.

I also think the 'eyelet' on that gasket is a poor place for a serious ground.

* Last updated by: Grn14 on 11/16/2014 @ 4:55 PM *

I'm sure it adds rigidity to the frame but I'm not sure how necessary that is. It did support a metal clutch line at one time and that would be reason enough to make it stronger than a usual wire bracket. I think they mostly decide to make it a piece of subframe because a flat piece of steel would weigh about as much anyway. I'll check carefully to see how it fits and recheck that after a couple thousand miles. If it starts to feel like the bolts are binding even a little....I guess it goes back on. Nah, if that was a vital part of the frame, there'd be one on the other side too. That's a half pound of useless junk, Green. ...but now that you mention it, I will need to figure out something to support the wire harness, won't I.

Yeah...I think you're right...probably just a 'stout' attachment point for the other stuff...

wellllll....it could be important. ..sorta. IDK. I'll need to ask some drag racer types and see what they say. If some of them do wheelies without that thing, I can sure get along without it.

I may ground the PC to the battery negative ground screw outside of the battery box. Alreday got two things there but I guess another won't hurt.

I was just doing bolt tightening myself. This subframe confuses me. I guess it's only necessary on the LHS of the motor!?

Is that subframe the ONLY attachment point for that engine mount?Other than where the mount itself attaches to the motor?Looks like it to me....I wouldn't ditch that piece if it were me.

What's the other side have there?Just the mount attaching to the engine and under that airbox frame part?I can't tell by looking at mine.I know there's a bolt somewhere in there where they mount the slider on the right side.

* Last updated by: Grn14 on 11/17/2014 @ 7:16 PM *

This subframe confuses me. I guess it's only necessary on the LHS of the motor!?

Is that subframe the ONLY attachment point for that engine mount?

What's the other side have there?Just the mount attaching to the engine and under that airbox frame part?I can't tell by looking at mine. I know there's a bolt somewhere in there where they mount the slider on the right side.

Yeah the bolt hole on the right engine mount is used to install a two point bracket for sliders. Same goes for the the hole on the left frame mount. The slider bracket bolts is on top of the subframe attachment. They are both held by the same bolt.

There's pics on this thread

http://www.zx14ninjaforum.com/messages.cfm?threadid=F2752D14-D56B-84E2-1A755F45566450C4

We'll see what the boys at Bikeland have to say. I made a thread there.

* Last updated by: Rook on 11/17/2014 @ 10:20 PM *

I don't know about the Gen2 but the Gen1 left side subframe has the only bolt hole that fastens down the left side fairing. I guess it has to stay.

I may ground the PC to the battery negative ground screw outside of the battery box. Alreday got two things there but I guess another won't hurt.

Rook I use a 14 gauge stranded wire from Negative side of Battery. This wire splits into two directions. Off this one wire I have a run to back of the bike and the other to the front. Anything and everything that requires a ground gets connected here. Even my chassis ground gets a second connection. This Insures bike is tied together. This is the only way for me. Done this way, If there is ever a issue with any of your electronics Ground can be ruled out. Hope this helps, cheers.

Thanks, Romans. I may go that rout. I see there is a hole in the battery box on the left side. a ground wire would pass through easily.