acmarina
Junior Member
Xubuntu Junkie
Posts: 58
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Post by acmarina on Aug 4, 2008 10:28:54 GMT -5
I've looked high and low and haven't found anything.
When I got my bike, there were no side covers, no airbox, and only a piece of towel covering the air side of the carb. I'd like to put on a good air filter, as the area around my house is pretty dusty. Any suggestions?? Would I be best off getting a generic filter?? K&N??
What's the diameter for the intake, anybody know??
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Post by sjef on Aug 4, 2008 15:13:52 GMT -5
take a caliper
all depends on the carb
for a filter k&n is oke
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acmarina
Junior Member
Xubuntu Junkie
Posts: 58
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Post by acmarina on Aug 4, 2008 15:15:56 GMT -5
Man, I was hoping not to have to buy a caliper!! It's just the stock carb.. I found out today, interestingly enough, that a glass jar from my tomato sauce would fit PERFECTLY! Now, if it were only wire mesh instead of glass..  |
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Post by sjef on Aug 4, 2008 16:31:42 GMT -5
inlet OD is 53mm for a standard carb
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Post by wotavidone on Aug 5, 2008 1:48:39 GMT -5
I recommend the K&N. Not because I've tried one, but because I tried a cheapo foam one on my XT. I'm sure it filtered out the rocks, but it also gave me a sever shock when it buirst into flames after a backfire.  |
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Post by StewRoss on Aug 5, 2008 3:19:11 GMT -5
Yes, K&N is the go...get one that is angled to the side a bit...clears everything better. Largish size so that it can breathe OK as well. SR  |
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acmarina
Junior Member
Xubuntu Junkie
Posts: 58
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Post by acmarina on Aug 5, 2008 8:51:18 GMT -5
Well, I called my autoparts store and they can't get a 53mm.. would a 54 shrink down enough to do the trick?? I would think so, but I thought I would ask first..
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Post by solo2racr on Aug 5, 2008 10:47:13 GMT -5
Well, I called my autoparts store and they can't get a 53mm.. would a 54 shrink down enough to do the trick?? I would think so, but I thought I would ask first.. Yes. The 54 will work. I was going to mention that you really don't need anything as accurate as a vernier caliper to get the dimension you need. K&N filters are not that precise in there sizes. You can stretch or shrink them a few mm and they will be fine. |
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jeffz
Full Member
Posts: 215
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Post by jeffz on Aug 5, 2008 12:29:20 GMT -5
Just picked up a K&N RU-1700 for my street tracker, which has a VM34-168 carb. Filter is 3.5" diameter and 4" long, with a 20 degree bend on the clamp side, to clear the frame. Might want to double check with the parts store that you can get the filter with the correct (or closest) size inlet I.D.
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Post by caferacercarl on Aug 6, 2008 4:27:40 GMT -5
I use a RU1770 and tighten it down. but thats just me.
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rei97
New Member
Posts: 16
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Post by rei97 on Sept 11, 2008 9:17:07 GMT -5
Hi, There is a reason not to mount a mere K&N. The Step of diameters is too big. You get turbulences which contract the laminar entrance to the carb rapidly. For this reason it is better to have a trumpet which could be provided by Mikuni. The construction looks like the attached picture and works with good result. A filter is just necessary if you live in a dusty area. My Rat has an open trumpet and that is the best solution if you want to have less air restriction. Regards Rei97 www.sr500.de/wbb3/attachment.php?attachmentid=4577 www.sr500.de/wbb3/attachment.php?attachmentid=4578 |
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