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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Replacing foam filter with K&N or similar /cgi-bin/YaBB.pl?num=1713730189 Message started by DaveFromCanada on 04/21/24 at 13:09:49 |
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Title: Replacing foam filter with K&N or similar Post by DaveFromCanada on 04/21/24 at 13:09:49 2000 Savage, stock except the air breather box has been removed; instead, there is a grey foam filter. The filter is, I think, too large and is partially jammed against the frame. Can anyone suggest a K&N or similar that would work in its place? I can see filters that look like the right size on Amazon, but don't know enough about it, to know if they vary at all. Will I have to retune? Or would this be similar enough to the foam filter? |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/21/24 at 13:48:55 I'm interested to see responses to this. The outside diameter of the air intake venturi size is about 57mm (call it 2.25"). The inside diameter of the stock intake boot is about 56mm (cram it on tight over the 57mm). You may have to use a tube to locate the new air filter (whatever you decide) to behind the battery box (where the stock air box used to be). Here's a link to a 2.25" ID tube that's 8" long that you could cut to the needed length. This should open up the possibilities/options for your air filter. https://www.ebay.com/itm/392866039596?itmmeta=01HW16BSPM8DNJSHZRZX73T3Z0&hash=item5b78a4072c:g:uXMAAOSwVJRjSJh0&itmprp=enc%3AAQAJAAAAwFc5M2m04vpMzjyYnXI1zenb0IJJ7T8Y38aNLa5gHZUVOPsXjjK69R7MrbJ8pzeNpJlzkf3xtuIIEH6pwQ%2FP%2BEXZ42TVBZqz8Ge6EWGv8hyYYJWSJOlQPG5HpxLoLKMB4qlTIFDW0R0jXGGHY6AaPu3GQj1UVGVNh%2F1jR7d7TVLQefcOdOyPEJXDeHbzEybcvUyO2%2B2VrXelPVkPsAva3qJpHRmO1WuFWq%2B1dVhXk%2BttPXmIpjJbE2dL%2B4Z7HhyzCg%3D%3D%7Ctkp%3ABk9SR7ibr6bgYw I don't think you'll have to retune unless you do something drastically different. Might have to play with the air/fuel mix screw and idle screw a bit to smooth the idle. |
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Title: Re: Replacing foam filter with K&N or similar Post by LANCER on 04/21/24 at 17:44:39 That filter looks to be a Uni filter. I have one identical to that on my engine and it looks to be a bit squished but mine proves it functions just fine, which has significant engine mods. The Uni filters are excellent at flowing air and filtering the incoming air. Don't just assume that it’s hampering air flow unless you have identifiable symptoms indicating such. |
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Title: Re: Replacing foam filter with K&N or similar Post by Yoshi on 04/22/24 at 19:16:06 Perfectly fits above the battery box |
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Title: Re: Replacing foam filter with K&N or similar Post by zipidachimp on 04/22/24 at 23:53:54 +1 for RC1250 ! Just for fun, this year I'm trying the snorkel between the carb and the KN. Larger air capacity. Will report later! Cheers! 8-) |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/23/24 at 14:07:14 The K&N RC-1250 is a good fit at the flange. Good to know it clears the battery box. I’m just not sold on pricey K&N products. They claim 75,000 miles or 5 years between cleanings (really??)….based of 15,000/year on highway driving. I’m not sure if it’s still the case, but K&N filters were/are made by Hiflofiltro. I do use Hiflo products. Seem the same as K&N for half the price. |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/23/24 at 14:13:45 5B48514845404249484C51210 wrote:
You may have to get creative using the stock snorkel tube. It’s wider at the end that attaches to the stock air box. Its ID is 2.5” compared to the carb flange area which is 2.25”. Maybe you can shove the filter into the opening of the snorkel and put the clamp on the outside of the snorkel. If you set it up, share a pic! I like the idea to get the full surface area of the filter in some wider open space to breath. |
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Title: Re: Replacing foam filter with K&N or similar Post by zipidachimp on 04/23/24 at 14:57:36 I'll take a pic tomorrow. The wide end slipped over the carb, narrow end over the KN, both ends secured with zip ties, as clamps are too wide. Bike gets insured at end of month, for 6 month policy. Looks weird, hope it works! Cheers! 8-) |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/23/24 at 18:57:38 Cool. Yeah, finding the narrower band clamps is tough. You have to pay up and special order. But ya gotta do it. You can do better than zip ties. Cheers. |
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Title: Re: Replacing foam filter with K&N or similar Post by zipidachimp on 04/24/24 at 20:55:21 photos: Carb-Snorkel-KN : 1. https://www.flickr.com/photos/151017922@N02/53677477380/in/photostream/ 2. https://www.flickr.com/photos/151017922@N02/53676147657/in/photostream/ 3. https://www.flickr.com/photos/151017922@N02/53676147757/in/photostream/ 4. https://www.flickr.com/photos/151017922@N02/53676147857/in/photostream/ Cheers! 8-) ps: rainy here for another week, results will be delayed. Will try NAPA for narrow clamps. |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/25/24 at 04:59:20 I like the concept. Thanks for sharing the photos. Is the seat going to fit without it pushing down on the filter and possibly pushing it out of alignment and loose from the boot and carb? The band clamps for the air box boot (snorkel as you call it) are 70mm and 64mm. Both are 8mm wide. Parts 8 and 9 on the diagram link below (roughly $6 each). Is the flange on the K&N filter making a good tight fit in the boot? If not, the band clamp may not hold it in place since it’s designed for a specific size and it doesn’t let you crank it any tighter than designed. If not, you’d need a narrow worm gear clamp that gives you more adjustability/clamping. I think I searched the entire internet, hardware stores, and auto parts stores for the narrower 8mm worm gear clamps. I didn’t have any luck, so happy shopping and good luck. Holler if you find ‘em! I want some to have handy. https://www.partzilla.com/catalog/suzuki/motorcycle/2006/boulevard-s40-ls650/air-cleaner |
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Title: Re: Replacing foam filter with K&N or similar Post by DragBikeMike on 04/25/24 at 10:59:03 Hey Zipi, that's a pretty cool lookin installation. You will certainly get enough air. |
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Title: Re: Replacing foam filter with K&N or similar Post by zipidachimp on 04/25/24 at 23:15:20 Thump: The dip in the frame is now gone, and I'm using a flat seat, ie; a standard. https://www.flickr.com/photos/151017922@N02/53678582507/in/dateposted/ Thanks for the parts source! If this intake works, I may glue the filter to the snorkel. Natural fit without clamps is iffy. Cheers! 8-) ps: turned 80 in Feb., everything I do now is for fun and/or experimenting/goofing around! 8-) 8-) |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 04/26/24 at 05:21:02 Sweet ride, Zip!! Nice!! And happy belated Big 8-0! Heck yeah! Tinker away, but don’t lose the awesome character of that bike!! Does he/she have a name?! |
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Title: Re: Replacing foam filter with K&N or similar Post by DaveFromCanada on 09/02/24 at 11:52:24 I have been able to figure out it is a unipod filter. More detective work: I am replacing the petcock instead of the filter (all my 'carb' problems stopped on prime) But my understanding is that the Unipod filter has to be oiled. The bike sat for a lot of years before I bought it, so I would imagine it needs doing. Is this what I should use: https://speedzone-web.com/en-ca/products/uni-filter-unifilter-service-kit?variant=40711523467349 After all my questions and what I have learned from this site, I am buying the 'Support the site' T-shirt today! |
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Title: Re: Replacing foam filter with K&N or similar Post by ThumperPaul on 09/02/24 at 12:06:31 That's the stuff, but I use Fab 1 for $16USD per can. 1 can will last a very long time. I'm still using a can that I bought several years ago for a scooter I had with a foam filter. It's like the can is almost still full. I think I paid $12 for it; dang inflation... It only needs a very light coating. More is NOT good in this instance. https://www.amazon.com/Maxima-61920-FAB-1-Filter-Spray/dp/B000WK3NBG/ref=asc_df_B000WK3NBG?tag=bingshoppinga-20&linkCode=df0&hvadid=80401840125241&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4584001431135107&th=1 |
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Title: Re: Replacing foam filter with K&N or similar Post by DaveFromCanada on 10/02/24 at 04:33:48 Thanks, Paul. I went with the one with the cleaner just because I think the bike sat for so long. I'm not sure what the previous owners did. When I got it, the pulleys and belt were broken. I don't know how long it sat after that happened. I will spend some time fixing these things when it gets too cold to ride soon. Having not done bike repairs before, I see it as a learning curve; at almost 60, I try not to look at it as 'old dog new tricks.' I appreciate everyone's help here, and I have 'bought the t-shirt" |
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Title: Re: Replacing foam filter with K&N or similar Post by ohiomoto on 10/02/24 at 06:16:04 I like biodegradable products for filter maintenance. Easier to clean up and no solvents to dispose of. https://notoil.com/products/classic-aerosol-air-filter-maintenance-kit-3-pack http://https://m.media-amazon.com/images/I/51qGkt1kBzL._SR600,315_PIWhiteStrip,BottomLeft,0,35_PIStarRatingFOURANDHALF,BottomLeft,360,-6_SR600,315_ZA28,445,290,400,400,AmazonEmberBold,12,4,0,0,5_SCLZZZZZZZ_FMpng_BG255,255,255.jpg |
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Title: Re: Replacing foam filter with K&N or similar Post by JOG on 10/02/24 at 06:55:25 When I did r K&N I kinda regretted it. The cost for the cleaner,oil,and filter versus any gain that I honestly couldn't see,, whatever it was it was a lot smaller than the cost.. Whatever,, IF you're the owner of a cleanable ,reusable filter,I hope you kept the old paper one. Blow it out and slap it in. You don't have to wait for your other one to dry. I wouldn't do it again. Everyone knows how important exhaust is and that is where folks spend time and money. But at least exhaust is Forced, and our engine design isn't the best in that area. But intake theory is not widely studied. I found some articles on it and the one thing that really stands out is Having at least enough intake volume between the filter and carburetor to fill the cylinder is your friend. More is better. |
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