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K&N RK-3929 HI FLOW AIR FILTER.

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  #1  
Old 04-01-2008, 03:34 PM
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Default K&N RK-3929 HI FLOW AIR FILTER.

Need some advice, just imported ths filter from the USA to the UK for my 07' 1200C.

Enountered a problem when fitting the the filter.

I disassembled my filter, removed the stock breather bolts, and began to assemble as per the K&M instructions I'm good at that ask my other half...!!)

I inserted the new breathers assembled the filters back plate and velocity stackand then offered the assembly to the body of the carb.

I loosely fitted the stock breathers and then methodically screwed in the hex bolts to the carb and then eventually tightening the breathers to secure the plate.

My problem is i have a gap between the back plate and carb body, I cant overtighten as this will bend the aluminium backplate.

My guess is this shouldt exactly... I have done something wrong..? I dony have any 'left over' pieces... I'm at a loss..

Any suggestions...?

Brigger
 
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Old 04-01-2008, 04:17 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Are you using these instructions? Just checking.
http://www.kandn.com/instructions/RK-3929.pdf
 
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Old 04-01-2008, 04:29 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Yes.. I even re-used the stock discarded gasket and it still has not seted properly

BRIGGER
 
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Old 04-01-2008, 04:32 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

How big is the gap?

Just looking at the "destructions" I would say to check that you only used 2 washers on the breather bolt extensions (not 4) and that the velocity stack is installed correctly (from the front, not the rear). Otherwise you may be needing a thicker gasket.
 
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Old 04-01-2008, 04:37 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Yes to the above, and have you made sure the velocity stack is fully seated? (step 18)
 
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Old 04-01-2008, 04:57 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

I guess the thicker gasket is probably the right route. I actualy removed the two washers from the fit - still didn't give me a flush seating.

Apologies for the poor grammar and spelling mistakes, riding the last train back from Charing Cross (London) to rural Kent its a bad line we call this train the 'Vomit Comet'... too many drunk city types...

Brigger
 
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Old 04-01-2008, 05:53 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Hey Brigger, if you can get your hands on the april 08 issue of American Cycle, you can find a Tech article on installing the K&N air cleaner filter , starting on page 28. Shows step by step installation of the cleaner on a sportster with lots of pretty color pictures. Good Luck mate
 
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Old 04-01-2008, 06:04 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Cheers Bud, I will see if I can track the Magazine importer down. I have American Iron on subscripton from US.

Brigger
 
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Old 04-03-2008, 01:28 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

Hey Darkrider, unable to get copy of magazine. can you email me the photos of the installation...???

Cheers M8

K
Brigger

 
  #10  
Old 04-03-2008, 02:51 PM
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Default RE: K&N RK-3929 HI FLOW AIR FILTER.

I had the same problem. The gap is about 1/8 of an inch and it's because of the two metal cylinders that stick out of the filter. You can grind them down a bit with a dremel. I didn't yet... I just got the cheap $24 stock filter. I know.. I'm lazy...


 


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