Pair plate fail - Wrist Twisters
 
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post #1 of 33 Old 01-04-2014, 07:22 AM Thread Starter
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Pair plate fail

Somehow I managed to F up my pair plate install. When starting the bike, it almost sounds like an exhaust leak or trapped air trying to get out the top of the engine and idles like crap.

The only thing I can think of is I bored out the inside of the plates a bit to make room for the screws so they would lay flush with the engine.

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post #2 of 33 Old 01-04-2014, 07:29 AM
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Is this a set of my PAIR plates?

As long as you didn't drill all the way through the plates you should be able to salvage them. Just remove the plates and the reed valves again .... then remove the screws and reed valves. I have a jig made to put the machined spots for the screw heads in the perfect location, odds are you are off center and they aren't sitting flush with the reed valve carrier gaskets.

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post #3 of 33 Old 01-04-2014, 07:30 AM
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Quote:
Originally Posted by HeliMech View Post
Is this a set of my PAIR plates?

As long as you didn't drill all the way through the plates you should be able to salvage them. Just remove the plates and the reed valves again .... then remove the screws and reed valves. I have a jig made to put the machined spots for the screw heads in the perfect location, odds are you are off center and they aren't sitting flush with the reed valve carrier gaskets.
Also the plates only go on one way, and can't be flipped .... so if you drilled the wrong side that would mess them up as well.

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post #4 of 33 Old 01-04-2014, 07:40 AM
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Just break the heads off the screws. It easier.

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post #5 of 33 Old 01-04-2014, 07:44 AM
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Quote:
Originally Posted by rickard919 View Post
Just break the heads off the screws. It easier.
Exactly. I just drill the the screw heads off with a 1/8" drill bit .... takes a few seconds for each one.

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post #6 of 33 Old 01-04-2014, 08:00 AM Thread Starter
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That would suck if they are upside down DOH! How do I check?

And no, I didn't go all the way through

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post #7 of 33 Old 01-04-2014, 08:05 AM
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There only 20 bucks so even if you did F em up its not that big a deal. I've made worse mistakes.

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post #8 of 33 Old 01-04-2014, 08:10 AM
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There is one corner that has a tighter radius, so they need to be drilled & installed as shown so that the corners match the valve cover and the screw heads will clear.




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post #9 of 33 Old 01-04-2014, 11:18 AM
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WTH, did you chop up a valve cover to make these plates?!

if you love your motorcycle, set it free.. if it comes back and hits you.. you highsided
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post #10 of 33 Old 01-04-2014, 11:31 AM Thread Starter
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I dunno, I'm at work right now, maybe I forgot to cap off a hose or something. The edges aren't totally plush around the edges so it's probably upside down. Should it be air tight?

I got them from Helimech and just bored out some room for the screws so it would sit flat on the engine.

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post #11 of 33 Old 01-04-2014, 11:34 AM
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Quote:
Originally Posted by beefsalad View Post
WTH, did you chop up a valve cover to make these plates?!
Yep!

I had a busted up valve cover with some damage and rash on one side. So I chopped it up and milled it down, then made some tooling plates that allow me to drill & counter sink the screw locations perfectly every time.

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post #12 of 33 Old 01-04-2014, 11:53 AM
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Quote:
Originally Posted by Ditch View Post
I dunno, I'm at work right now, maybe I forgot to cap off a hose or something. The edges aren't totally plush around the edges so it's probably upside down. Should it be air tight?

I got them from Helimech and just bored out some room for the screws so it would sit flat on the engine.
When installed correctly the plates should sit perfectly even and almost flush. The rubber seals on the PAIR valve holder should seal it up 100% around the edge and make them air tight, there is a port underneath them that will see + exhaust pressure ...... when they are done wrong it will sound like a severe exhaust leak.

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post #13 of 33 Old 01-04-2014, 01:17 PM Thread Starter
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So these ones didn't have room for the screws, does everyone either bore them out drill out the screw heads?

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post #14 of 33 Old 01-04-2014, 01:27 PM
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I drill the heads out. Whole job took less than one beer.

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post #15 of 33 Old 01-04-2014, 01:47 PM
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Quote:
Originally Posted by Ditch View Post
So these ones didn't have room for the screws, does everyone either bore them out drill out the screw heads?
Most will just remove/drill the screws off and toss the reed valve in the trash.

I had a few people ask for me to make them with the countersinks so they had one less thing to worry about during the install. Trying to pick up and free hand drill the screw head locations is tricky, plus you run the risk of drilling them reversed. The valve cover tooling jig & drill stops I made takes all the guess work out of it and gives me a repeatable result.

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post #16 of 33 Old 01-04-2014, 03:11 PM
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I removed the screws and tossed the reed valves in the trash.

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post #17 of 33 Old 01-04-2014, 05:18 PM
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Quote:
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I removed the screws and tossed the reed valves in the trash.
then how did the exhaust port seal?

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post #18 of 33 Old 01-04-2014, 05:22 PM
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Quote:
Originally Posted by nd4spdbh View Post

then how did the exhaust port seal?
The gasket is on the reed valve carrier. You drill off and discard the reed valve, then reinstall the carrier's and cap them off with the PAIR plate.

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post #19 of 33 Old 01-04-2014, 06:31 PM
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Quote:
Originally Posted by nd4spdbh View Post

then how did the exhaust port seal?
He didn't. He just can't hear the leak. :P

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post #20 of 33 Old 01-04-2014, 06:48 PM
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post #21 of 33 Old 01-04-2014, 08:46 PM
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Quote:
Originally Posted by rickard919 View Post
He didn't. He just can't hear the leak. :P
Exactly!

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post #22 of 33 Old 01-04-2014, 09:50 PM
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Sheesh, you guys know that one dude covered ALL this in his video, right??? I know he talks a lot, but c'mon....

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post #23 of 33 Old 01-04-2014, 10:29 PM
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i just say get two big vacuum caps and put them over the holes on the stock covers and call it good but thats just me.

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post #24 of 33 Old 01-05-2014, 06:57 AM
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Quote:
Originally Posted by nd4spdbh View Post
i just say get two big vacuum caps and put them over the holes on the stock covers and call it good but thats just me.
Dr. Jekyll, Mr. Hyde would say to stop wasting your time on PAIRS and get an Ohlins and a set of proper springs.

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post #25 of 33 Old 01-05-2014, 07:05 AM Thread Starter
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So I didn't have time to work on it but there's a damn tight seal on both of them and both sit quite flush and don't appear to be upside down. WTH?

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post #26 of 33 Old 01-05-2014, 07:22 AM
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Quote:
Originally Posted by marylandmike View Post
Dr. Jekyll, Mr. Hyde would say to stop wasting your time on PAIRS and get an Ohlins and a set of proper springs.
He already did. They've transformed his bike already, without being installed! Next he should a power commander and put it on the table so he can have the cold start issue.

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post #27 of 33 Old 01-05-2014, 07:25 AM
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There's mist be a small gap somewhere. I had the same issue on one of my bikes when I did it.

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post #28 of 33 Old 01-05-2014, 07:25 AM
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Quote:
Originally Posted by Ditch View Post
So I didn't have time to work on it but there's a damn tight seal on both of them and both sit quite flush and don't appear to be upside down. WTH?
Time for some pics. Something has to be installed wrong for them to be leaking, its just a blanking plate after all.

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post #29 of 33 Old 01-05-2014, 08:21 AM Thread Starter
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Agreed, I'll be able to tonight.

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post #30 of 33 Old 01-05-2014, 12:30 PM
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Depending on the bike, you may need to pull the reed valves out.

If not, the covers can not seal, due to a screw that sticks up enough to not allow the el-cheapo covers (like I use) to seal.

With the reeds removed, you'll need a gaskets, or some silicone.



Here is a shot of a 600RR cover, the screw that causes interference can easily be seen here -


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post #31 of 33 Old 01-05-2014, 12:39 PM
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Here is my PAIR as installed from the factory -



Removed the plumbing -



Plates w/silcone



Plates installed


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post #32 of 33 Old 01-12-2014, 07:04 PM Thread Starter
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So they weren't upside down, just not enough care taken to get an air tight seal. I buzzed off the screw heads, use some high temp gasket sealant and made sure they were down tight.

Before taking them off I believe I could visually see a small gap so as soon as it dries I'll check but I'm sure it will be fine. Thanks guys!

And Steve, those pics remind me of my Blackbird years! Such a great bike.

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post #33 of 33 Old 01-13-2014, 06:16 AM
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Quote:
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And Steve, those pics remind me of my Blackbird years! Such a great bike.
I've been very pleased with it, they are great bikes.

I wish my 919 had as much power, I might still have it.....

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