02-23-2007, 10:27 AM | #31 |
Join Date: Sep 2006
Location: COLUMBIA, SC
Posts: 973
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Ours are on the bottom position with the K&N type filters with 2 1/2 turns out on the air/fuel mixture screw.
Jason
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2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000) |
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02-23-2007, 11:55 AM | #32 |
Join Date: Jan 2007
Location: Northern Vermont, USA
Posts: 1,271
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Jason, have you pulled a plug with those setting to see how she's burning? I'm getting ready to do t.eeh filter mod this weekend. Kinda like to do it right the first time, if you know what I mean. Thank Bud!
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First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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02-23-2007, 01:33 PM | #33 |
Join Date: Sep 2006
Location: COLUMBIA, SC
Posts: 973
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No, but there is no stumble on rolling acceleration and no backfire from WOT to zero thottle on decel. If it could run any better, I guess a dyno would be the only way to know for sure. But I've only got my seat of the pants to go on.
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2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000) |
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02-23-2007, 02:19 PM | #34 |
Join Date: Jan 2007
Location: Florida USA
Posts: 196
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With all the talk about air filter replacment, I decided I wanted to experament with the Pod/Cone/K&N style filter.
I just ordered one from Bike Bandit http://www.bikebandit.com/partsbandi...ion_Path~3.asp The link is for the 200cc honda replacement. I have a Zongshen so I ordered the Yamaha part but it looks exatly like the Honda one. the part numbers are different by one digit. Anyway I will document how it goes. |
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02-23-2007, 03:16 PM | #35 |
I kinda sorta agree with OB1. The small filters are great for high performance engines, but for everyday use I'd stick with the larger foam type (UNI) if running with out the air box. Think about riding down a dirt road following your buddy and eating his dust with no goggles or eye protection, imagine how much of this it getting flitered by your engine....
BTW....RESPECT YOUR ELDERS... :wink:
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2004 KAZUMA CHEETAH 200 2001 Yamaha Big Bear 400 1986 Honda ATC 250ES 1983 Honda ATC 200X 1974 Kawasaki KE100 |
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02-23-2007, 03:41 PM | #36 |
Join Date: Jan 2007
Location: Florida USA
Posts: 196
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Is thist the type you are talking about?
http://www.bikebandit.com/partsbandi...ion_Path~3.asp They cost 3X more but I do belive you get what you pay for. I knew getting my China bike at 1/3 the cost of a Yamaha I would be making some sacrifice in quality somewhere. So far I am very satisfied with the compromise. I just wonder if the Uni filter is; 1 worth the extra cost to protect a $500.00 engine 2 better performing than OEM or Pod (likely) 3 going to fit, with or without modification. I might get one just because I like to experiment and I am willing to spend $30.00 to find out. If the pod type shows any HP gain I will try the Uni too. |
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02-23-2007, 05:03 PM | #37 |
Join Date: Jan 2007
Location: Bradenton, Florida
Posts: 1,200
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Is there really a significant amount of HP increase with the pod filter?
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02-23-2007, 08:00 PM | #38 |
There will be some power increase, but you will need to do some exhaust mods to get the most noticeable increase, I drilled several holes around the inner tip before I did any filter or carb adjustments.
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2004 KAZUMA CHEETAH 200 2001 Yamaha Big Bear 400 1986 Honda ATC 250ES 1983 Honda ATC 200X 1974 Kawasaki KE100 |
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02-23-2007, 08:15 PM | #39 | |
Join Date: Sep 2006
Location: Cuyahoga Falls, Ohio
Posts: 267
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How would you attach the UNI Pod filter (referenced below) to the Carb?
Quote:
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The destination is merely a by-product of the journey. '06 KLR650 '06 XT225 '92 XT225 Serow ( MBD.... Multiple Bike Disease...) |
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02-23-2007, 08:15 PM | #40 | |
Join Date: Jan 2007
Posts: 124
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Quote:
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Roketa DB-07A 200cc |
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02-23-2007, 08:27 PM | #41 |
Join Date: Jul 2006
Posts: 499
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Mods will pay off when coordinated. Done as single items, increases in power will be less, sometimes to the negative!
My powertrain mods are Uni filter, filter firescreen stripped to one layer, port matched intake manifold, port matched exhaust port, White Bros CDI and Cobra exhaust. While mine is geared specifically for offroad, with a smaller rear sprocket, I would be a betting man! Next time I have the exhaust header off, I will be doing some grinding and polishing in the exhaust port. |
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02-23-2007, 09:19 PM | #42 | ||
Quote:
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2004 KAZUMA CHEETAH 200 2001 Yamaha Big Bear 400 1986 Honda ATC 250ES 1983 Honda ATC 200X 1974 Kawasaki KE100 |
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02-24-2007, 11:41 AM | #43 | |
Join Date: Sep 2006
Location: COLUMBIA, SC
Posts: 973
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Quote:
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2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000) |
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02-24-2007, 03:20 PM | #44 |
Join Date: Nov 2006
Location: Lawrenceburg, KY
Posts: 178
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Just a little "scientific" data to throw into this discussion:
http://www.roadkill.com/~davet/moto/air.filters.html http://www.bobistheoilguy.com/airfilter/airtest1.htm |
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03-02-2007, 08:55 AM | #45 |
Join Date: Feb 2007
Location: W. Massachusetts USA
Posts: 25
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For my JetmotoGY-A200 I use a uni filter#NU-4037ST (Honda ATC200 81-82). Cut the length to fit the stock cage (you can use your old filter as a pattern), you can get two double filters from each one.
If you choose to only run a single filter you can get four filters from one uni...I would use the single filter set-up only in zero to minimal dust situations.( these filters are of different densities.) To me the big thing with the stock airbox is the base sealing of the filter cage against the airbox itself. Be sure that it is air/leak tight or the filter issue is mute! Jetting didn't change and I used a filter oil to lightly!! impregnate each sleeve. Running a bit lean I will next drop the clip from the middle position as others have suggested. For the price of $14. it is a very cost effective way to make use of your stock airbox at least with my bike. I have considered using the gauze type clamp on type filter to allow the battery to be moved to the airbox area. I do know the Suzuki 250 DRZ battery works well with the Jetmoto, is about 400g lighter, is a sealed unit and is 3/4 the size of the stock 200GY-A battery....guess that'a another post topic. |
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