Paper air filter

[L mayer]

Does anyone know the dimensions of the paper air filter for a 74 Jackpiner?

[slvrbrdfxr]

Hi Lew,
I went out and measured an original paper air filter that came out of a 73 100 Berkshire. Im thinking it should be the same as what would fit a 74 Jackpiner. The filter measures 7 5/8" on the OD along the long axis and 5 5/8" on the ID along the long axis. It measured 5 5/8" on the OD along the narrow axis and 3 3/8" on the ID of the narrow axis. The rubber flange is 1" wide. The filter is 2" in thickness. There was no part number visible on the filter. I tried to attach pictures of the measurements but the files were too large. I'd be glad to email the pictures to you directly if you drop me a note using my screen name here and adding @cox.net . Hope this helps !
Dave McCullough

[L mayer]

Thanks, Dave. I figured since foam filters deteriorate over time, I'd use a paper filter since my JP doesn't get ridden much.

[Daniel P. McEntee]

  They may be kind of pricey, but if you can find one, the K&N paper filters work very well, and I think the one in my '75 250 Husky is still the same one I installed back in the day. They can be cleaned with a detergent and lightly oiled again if I remember correctly. When I got the bike running again back in 200 or so, I didn't see a need to replace it with anything else. Worth looking into. If there is anything like a speed shop or custom parts store for cars, or weven off road cars and the new side by side vehicles, see if they have anything that will fit.
   Dan McEntee

[slvrbrdfxr]

Lew,
Good idea ! Yes, the foam filters degrade pretty quickly once they are oiled and I have had the same issue with my bikes not getting used regularly. I forgot to mention that the paper filter uses an aluminum holder as part of the installation too so you'll have to have that part as well to make it work. Sure wish I could post a picture of the aluminum holder but once again the file picture I have is too large to attach in this forum. You can probably see what it looks like one in an early parts manual. If you find a suitable paper filter to use please post the maker and part number. Thanks !
Dave McC