Is this the right block offs to get - Wrist Twisters
 
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post #1 of 29 Old 08-03-2010, 07:31 AM Thread Starter
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Is this the right block offs to get

Honda CBR919 CBR 919 Exhaust Smog Block Off Plates Kit: eBay Motors (item 230502522881 end time Aug-21-10 17:54:19 PDT)

its for the CBR919 i could not find one for the CB919 specifically


I love in Australia so I need to make sure the sellers sends here as this seller does,


Thank you for the help in advance.

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post #2 of 29 Old 08-03-2010, 07:45 AM
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shape doesn't look right

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post #3 of 29 Old 08-03-2010, 07:53 AM
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Send a private message to semi_gray. See if he will ship you the blockoffs he makes.

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post #4 of 29 Old 08-03-2010, 08:43 AM
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Quote:
Originally Posted by zaq123 View Post
shape doesn't look right
The first line in the description says the plates for a particular bike may appear different than the ones in the picture....so, it's impossible to tell by this whether they are the "right ones" or not.

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post #5 of 29 Old 08-03-2010, 08:57 AM
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They're more like this:

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post #6 of 29 Old 08-03-2010, 12:39 PM
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Those are the exact ones I just orderd from ebay...there not bad but dident come with any hardware like it says it should.

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post #7 of 29 Old 08-03-2010, 12:45 PM
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Quote:
Originally Posted by HondaJim View Post
Send a private message to semi_gray. See if he will ship you the blockoffs he makes.
+1. semi_gray is the man. His plates are what you want.

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post #8 of 29 Old 08-03-2010, 12:47 PM
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NO.... ebay ones suck anyway ... SEMI gray has way better ones mine where from Semi but my roommate bought ebay and they were a pain and really thin and cheap.

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post #9 of 29 Old 08-03-2010, 01:55 PM
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semi_gray FTW!!!

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post #10 of 29 Old 08-03-2010, 01:58 PM
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just a shame he doesnt make any more... might have a set go up for sale.... nothing's confirmed just yet. keep your eyes peeled.

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post #11 of 29 Old 08-03-2010, 02:15 PM
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kyle racing cbr plates on my 919...

also, there's no such thing as a cbr919 so these will fit a 919.

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post #12 of 29 Old 08-07-2010, 09:37 PM
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Question about PAIR Plates

I got my pair plates from Dan Kyle racing. They were not machined to account for the valve screws (like semi-gray's plates) so I used a dremel to machine a groove in the bottom of each plate to accomodate the depth of the screw head. Installed the plates; made sure that they were snug; started the bike; and immediately noticed an increase in noise coming from the front of the engine. Almost as if the screw heads were banging against the plate?
My question is this increase in noise normal? If not, any ideas on what it could be? Finally, should I just remove the reed valve assemblies; apply a liquid gasket to the edges on the pair system and reinstall the plates?

Thanks in advance.

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post #13 of 29 Old 08-07-2010, 09:44 PM
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There's another ebay seller that sells for 19.99, and provides a bag of vacuum block-off caps. I used that kit. I took the screws out of the reed valves, which released the reeds, re-installed the housings so the gaskets would be useable, and it works great. If I hadn't read so many posts about the difficulties of doing this, I would have never suspected anyone would have any troubles with it. It's very simple.

No noise....there should definitely be no noise associated with doing this correctly.

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post #14 of 29 Old 08-08-2010, 05:20 AM
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hey ya'll, bucky made an appearence
Hey duders!!!





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post #15 of 29 Old 08-08-2010, 02:41 PM
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Thanks for the response, blackheart. I decided to remove the reed valves as well and replace the plates. Result: no more knocking noise.
As best as I can determine, the noise was probably the result of the plates not being completely flush, as a result of my imperfect dremeling skills,with the valve cover although after the first installation, it certainly seemed that way.

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post #16 of 29 Old 08-09-2010, 09:33 AM
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post #17 of 29 Old 08-10-2010, 02:55 PM
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I dont mean to ask this question as IM sure you have all heard this a million times! But is it worth it to do the block off plates? Its the small plates on each side of the head by the spark plugs right?

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post #18 of 29 Old 08-10-2010, 04:53 PM
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Not necessary. Not a total waste of time, though.

I like the less cluttered area, so that if I ever do have to do an emergency plug swap in a parking lot some night, I'll have less difficulty doing so. Plus, it MIGHT help keep your pipes from blueing as much. It's so easy, if you like doing things like this, I say it's worth it. Don't sweat it if you don't choose to do it though....your bike will run just fine....

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post #19 of 29 Old 08-10-2010, 05:55 PM
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Thanks a lot! Well, I do like working on the bike, so it might be worth it, and why the hell not!! Do you have to take the tank off? Thanks again

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post #20 of 29 Old 08-10-2010, 06:58 PM
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Quote:
Originally Posted by TeamZ View Post
Thanks a lot! Well, I do like working on the bike, so it might be worth it, and why the hell not!! Do you have to take the tank off? Thanks again
Nope...just raise it up. If you loosen the rear bolt that runs through the "slide", you can move the tank back. Then, the front lifts up. Don't even have to disconnect any fuel lines or anything. Put a piece of wood or something under it to hold it up, and you'll have plenty of room to work. You will need a swivel socket though, as mentioned above, to access the inner-most bolt on the right side plate. I plugged the airbox with some RTV inside a vinyl cap, pushed on the opening where I pulled off the big hose. IF I would have really felt froggy, I would have also put a zip-tie around the cap. Doesn't matter, though, I can't imagine it leaking.

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post #21 of 29 Old 08-27-2010, 10:28 AM
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Quote:
Originally Posted by craftywidget View Post
I got my pair plates from Dan Kyle racing. They were not machined to account for the valve screws (like semi-gray's plates) so I used a dremel to machine a groove in the bottom of each plate to accomodate the depth of the screw head. Installed the plates; made sure that they were snug; started the bike; and immediately noticed an increase in noise coming from the front of the engine. Almost as if the screw heads were banging against the plate?
My question is this increase in noise normal? If not, any ideas on what it could be? Finally, should I just remove the reed valve assemblies; apply a liquid gasket to the edges on the pair system and reinstall the plates?

Thanks in advance.

Uhm... When you install the block-off plates the PAIR check valve and flame arrestor assembly are supposed to be REMOVED before putting the plates on...

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post #22 of 29 Old 08-27-2010, 10:29 AM
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Oh & that ebay ad is full of Shit... Not only are the pictured plates the wrong ones for the 919, but the claim that the PAIR system detunes the 919 is also bogus...

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post #23 of 29 Old 08-27-2010, 01:12 PM
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I got these

...and just put a coat of high temp black paint on them (will get them powdercoated next batch I do). I think they look great!

This seller actually DID included everything I needed in the kit, and the machining was fine on the parts. Screws were perfect, and the little cap ends fit the hose just right (added a zip tie to be sure).

I also used another one of the caps (with zip tie) on the flapper mod. Worked great!

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post #24 of 29 Old 08-27-2010, 03:30 PM
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Quote:
Originally Posted by g00gl3it View Post
I got these

...and just put a coat of high temp black paint on them (will get them powdercoated next batch I do). I think they look great!

This seller actually DID included everything I needed in the kit, and the machining was fine on the parts. Screws were perfect, and the little cap ends fit the hose just right (added a zip tie to be sure).

I also used another one of the caps (with zip tie) on the flapper mod. Worked great!
Same one's I got. No doubt Semi-gray's were much nicer looking, but, these work just fine.

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post #25 of 29 Old 08-29-2010, 01:49 PM
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Thanks g00gl3it for the link. I'm in for a kit.

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post #26 of 29 Old 08-29-2010, 02:44 PM
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The plate shape in the picture isn't right but that probably isn't what they look like. Usually the sellers that sell TONNES of stuff just use a generic picture with a description. The ones I ordered look the like ones Tom posted.

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post #27 of 29 Old 08-29-2010, 03:27 PM
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I know I've already posted regarding this topic, but...

IMHO, the BEST place to get block-off plates for a 919 are right here on this site. A user manufactures them in small batches. PM semi_gray for details.

His plates are of excellent quality and are machined to fit using the reed valves as the gasket. His kit includes everything you need from the acorn head bolts to the caps required to block off the airbox.

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post #28 of 29 Old 08-29-2010, 03:33 PM
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One of the posts in this thread says that semi_gray doesn't make them anymore.

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post #29 of 29 Old 08-29-2010, 06:19 PM
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Quote:
Originally Posted by kb13 View Post
One of the posts in this thread says that semi_gray doesn't make them anymore.
Correct. I don't believe he does...or, I would have bought his version.

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