When I was working on my carb I noticed the little air filter on top of the carb, inside of it the styrofoam was all broken up. I dont want to get styrofoam sucked into my carb so I took the part off but left the little hose on it.
Anyone know what this air filter does, and can I ride without it? Im going to buy a new one but could I just stuff it up with cheese cloth til it comes in the mail, would that work?
Its pictured in the middle of this image:
(https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Flh6.googleusercontent.com%2F-Y1kPeHPVk54%2FUK3-Lq12tiI%2FAAAAAAAAAcg%2Fe0jFTuOLSYw%2Fs1600%2FDR_parts_large.jpg&f=1&nofb=1)
Its part 77 on this diagram: https://www.cheapcycleparts.com/oemparts/a/suz/506b32c0f870022ba8af9acc/carburetor
Thanks!
Not sure what it does but it might be for the vacuum on top of the carbs.
I have been riding around without one forever. I had it in a parts box and it too was missing a filter. I couldn't afford a new one so I recently took mine apart using a utility knife to find the seam and got it started using flexing pressure on the joint (not for the timid if you need this part). Most of the separation was clean except for a small section the was "welded" together but broke apart. I cleaned out the old residue and installed a piece of packing foam between the ribs that air could flow through. I used electrical tape to put it together.
It's not installed and if the weather doesn't clear up probably won't be until next spring.
You have '04+ carbs? I think that is the "vacuum damper" and has something to do with the added emissions equipment on the later carbs. If it pulls air into the carbs you probably want it functioning correctly.
If you remove all the emission equipment it could probably be capped off. I'm honestly not sure.
Quote from: Bluesmudge on October 22, 2019, 07:11:45 PM
You have '04+ carbs? I think that is the "vacuum damper" and has something to do with the added emissions equipment on the later carbs. If it pulls air into the carbs you probably want it functioning correctly.
If you remove all the emission equipment it could probably be capped off. I'm honestly not sure.
Thats a good point, though I dont want to spend 30 bucks on something that costs them 30 cents to make.
Was thinking of buying this https://www.ebay.com/itm/New-Genuine-Suzuki-Air-Filter-Foam-Cleaner-Element-DS80-JR80-See-Notes-Y189/232015805392 and cutting it into a circle so I can put it in the black canister and save 20 bucks. Looks like theyre both air filter foam and its made by suzuki, and I should have some left over.
Nevermind. #79 is the vacuum damper. Its a closed canister, not a cylinder.
I think the part you are talking about (#77) is a filter for the air intake required by the white caps on top of the carbs. These somehow effect needle height for emissions. You don't see any of these parts on the older carbs.
Any filter that fits the hose should be fine (or find a cheap used one off ebay). If you remove and cap off all the vacuum tubing and unplug and remove the throttle position sensor the bike should run fine, if not better. With the vacuum lines removed those white caps should be defeated and not pull any air through the filter in question.
I wonder if the caps from the older carbs would fit the '04+ carbs to clean everything up. There is much less to go wrong if the only vacuum line is the one running to the petcock.