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Did the Block Off Plates Stop Your Backfiring/Popping

  • No, it did not stop the backfiring and I did not notice any differences after the mod

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  • No, it made the backfring actually worse

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Discussion Starter #1
I would like to hear from those who have used the block off plates. Did your backfiring/popping stop after doing the block off plates? Also, how long have you done it and have there been any negative repercussions? Thanks
 

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Mine still pops every now and again. Had them on for a year now. They only thing these do is get the tuner an accurate air/fuel ratio reading when you get your bike dyno tuned.
 

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Mine still pops every now and again. Had them on for a year now. They only thing these do is get the tuner an accurate air/fuel ratio reading when you get your bike dyno tuned.
I'm interested on this as well and have been inquiring about this mod. Did you vote on the poll Zak? Sort of like the OP, did the block off help at least a little bit?
 

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I'm interested on this as well and have been inquiring about this mod. Did you vote on the poll Zak? Sort of like the OP, did the block off help at least a little bit?
My bike never backfired to begin with. I had some popping on decel. After my tune I have a pop every now and again. Nothing crazy or loud though.
 

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You should do blockoff plates if you're planning to get a tune. The primary benefit of removing the secondary air system is to allow for a true AFR reading. In a roundabout way, the reduced 'popping' is just a bonus. Reduced weight and cleaning up the engine bay are also very small bonuses :tounge2:


Edit --

On another note, it is possible to do the same thing without having to buy "plates" .... by removing the valve [16126], connecting the two "air injectors" [11065] with a tube and capping the hole in the airbox -- you've eliminated air being injected into your exhaust. You can leave the reeds [12021] in place if you'd like.

http://www.partshark.com/oemparts/a/kaw/500b779cf8700223e4798ade/cylinder-head-cover
http://www.partshark.com/oemparts/a/kaw/500b779ff8700223e4798adf/air-cleaner
 

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You should do blockoff plates if you're planning to get a tune. The primary benefit of removing the secondary air system is to allow for a true AFR reading. In a roundabout way, the reduced 'popping' is just a bonus. Reduced weight and cleaning up the engine bay are also very small bonuses :tounge2:

On another note, it is possible to do the same thing without having to buy "plates" .... by removing the valve, connecting the two "air injectors" [can't find a good name for these] with a tube and capping the hole in the airbox -- you've eliminated air being injected into your exhaust.
Reed Valves :)
 

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I went with AGG. Requires a touch of grinding on the plate holes to line up to engine case. Super nice mod.
 

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Mine went away almost completely. During idling, I can rev it up and no popping/backfiring anymore. When I am riding, I still get the occasional popping but nothing like it used to be. Definitely worth the time, effort, and money (if you choose to go with actual plates).
 
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