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Posted

Hey I have just recently purchased a 1985 Yamaha moto 4 200 and found that the air filter case is not only busted open but also missing the filter and element. I have searched for these parts online and have yet to find any out there for sale. I was wondering if there is a way to make my own air filter case with filter or some way to go about fixing this problem. Any help would be much appreciated thank you . Can post pictures if need to

  • 1 month later...
Posted

Depending on how bad the outer casing is beat up, plastic jb weld will work just fine and give you a strong fix. I have a 1986 Yamaha moto 4 200 and when I bought it, it had cracks, it was beat, missing the element, the filter and the back cap. I repaired the cracks with jb weld, and I bought a 2 1/2 inch pipe to 2 inch pipe conversion for 4 dollars to replace the element, with this I chopped it down to shorten it tp about two inches long, and jb welded that on over the hole to the carb. With that I bought a 20 dollar filter from ebay. It was a 50 mm or 2 inch flange uni airfilter which fits nicely over the end of the conversion pipe. For the back I used some spare plastic laying around, cut it shape, used silicone as a seal and used some screws I had.

Hope this helps

Posted

you can make your own using a milk jug and old inner tube- just make sure when done it can take air in and it goes through the filter. plus the entire system is closed so only the air going to the card come from the filter

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