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TOPIC: 1971 AT1 Air Filter

1971 AT1 Air Filter 09 Jan 2019 10:01 #1

  • sleezer
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Good afternoon fellow badge bros. I'm working on a 1971 AT1-C rebuild and had a question regarding air filtration.... Do you go with an aftermarket pod directly connected to the carb OR stick with the original OEM set up (boot to box)? I know there's the argument about keeping the bike OEM vs. aftermarket and personal preference there. We can stay away from that for the purpose of this conversation. I'm looking for the most cost effective solution for optimized performance. I appreciate the input!

1971 AT1 Air Filter 09 Jan 2019 10:39 #2

  • MarkT
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If you're riding in wet/muddy conditions I'd stick with stock air box of some type.

Otherwise, Meis has found a KTM 50 Uni Filter that fits really well on the early CT/AT... oval shaped and clears the frame nicely vs. the common pod filters.
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1971 AT1 Air Filter 09 Jan 2019 13:39 #3

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KDI makes a paper replacement

Capt. Dave makes his own out of green foam and they are really the best I have seen.

a

1971 AT1 Air Filter 09 Jan 2019 20:39 #4

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Here's one of the posts about the great fitting filter Meis found.

yamaha-enduros.com/index.php/forums/perf...stion?start=10#55892

1971 AT1 Air Filter 10 Jan 2019 05:55 #5

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This is very helpful guys. I appreciate it. Question: do you need to remove the existing airbox in order for the Uni filter to fit to the carb? Thanks!

1971 AT1 Air Filter 10 Jan 2019 09:13 #6

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Yes.
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