Mikuni VM34 - what is best filter?
- Thread starter Johnnymac
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concours
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No such thing as “too much filter area”.
This is the K&N filter I'm using on my VM36. New & old for my comparison. IIRC it's 2" deep. I've always wondered if it's too much?
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True, I get that it can be too small & therefore restrictive. What I should've said was overkill as there a gnat's cock of clearance between the filter & the battery box. It doesn't cause me any issues but I'd prefer to have a little more of a gap to avoid anything rubbing/catching.
concours
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Also, consider the WEIGHT of a big filter, a foot away from the engine that flops around. That rubber clamp boot that mounts the entire carb & air filter takes a beating.
I believe this is the one that I use https://www.knfilters.com/rc-1950-universal-clamp-on-air-filter
I bought it about 05 and in my mind it was 1950C.
Any way, the offset of the flange allows it to be larger and hang lower.
I cut the flange at an angle to allow it to hang perpendicular to the back of the original air filter box.
I can see witness marks on the chrome end cap from rubs, but nothing hard, just marks.
I bought it about 05 and in my mind it was 1950C.
| Air Filter Shape | Round |
| Filter Material | Cotton Gauze |
| Flange Inside Diameter | 2.25 in (57 mm) |
| Flange Length | 0.625 in (16 mm) |
| Flanges | 1 |
| Flange Offset | 0.313 in (8 mm) |
| Flange Type | Offset |
| Height | 2 in (51 mm) |
| Package Contents | 1 Air Filter, 1 K&N 1/2oz Filter Oil |
| Package Quantity | 1 |
| Outside Diameter | 4.5 in (114 mm) |
| Top Material | Chrome |
| Top Style | Metal |
| Warranty | 1 Year Limited |
| Washable | Yes |
| Product Style | Round Straight Universal Air Filter |
| Weight | 0.7 lb (0.3 kg) |
Any way, the offset of the flange allows it to be larger and hang lower.
I cut the flange at an angle to allow it to hang perpendicular to the back of the original air filter box.
I can see witness marks on the chrome end cap from rubs, but nothing hard, just marks.
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I know some people are concerned about the lack of filter area on those thing pancake filters. But if you need to run one due to lack of space, you can fit a few of these in the back to increase air flow http://shop.unifilter.com/p/air-box-filtered-air-vents-6-pack
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