[cozjoeponc]

What do I do to get and air filter box back in place? I am trying to get the original back in after cleaning it. The box does not sit flat enough to let the tabs slide into the back slots. The air vent looks like it might not be seating the filter in place and letting it be propped up on one side. Would it be easier to replace with a K & N filter because I think it showed on iTube that you throw the tube away. I have been trying to get it back in for 2 hours now and have had no luck. I bought the scooter recently and it has 12 five on odometer so I don't know how long it's been in there so I might need to replace it anyway. If anyone can help me I would appreciate it. Thanks much

 

[JohnK]

Two problems that prevent easy install.
1) Ensure that the filter is fully seated in the cover all the way around first.
2) Make sure all three tabs at rear of cover are hooked into the tabs on the filter housing.
If these are done correctly it should go back in relatively easy.

See this video:

 

[Jeff_MdR]

Many of us feel your pain. Similar complaints usually come from people replacing the OEM with the K&N (like myself). Take a breather, look at the video, try again - you'll do it.

 

[v8eyedoc]

YEAH..!!!! What they said.......Look at the video - That is what I did before cleaning the air filter on my '08 400.......

 

[Ralph M]

Do it on the side stand and put weight on the scooter if you can
this pivots the engine down a little and makes getting the lid and filter back.

 

[taly]

Screwdriver solution

I had a heck of a time; it would require dozens of attempts. The solution that worked for me is, after making sure the filter is properly seated in the cover, and the tabs are aligned, press on the forward edge of the filter with a small screwdriver and it would drop into place.

I don't know if anyone else would recommend that, but it's worked on my two 400s, both of which had the problem.

 

[Gbjbany]

don't do what my previous owner did and try to use the screws to force it shut - he stripped all the threads on one side

 

[Quantum Mechanic]

Do what Ralph says above, and make sure you use your finger tips to hold onto the edge of the filter to keep it in the top part of the airbox as you try to refit it. It goes straight in done like that especially if you do this all on the side stand as mentioned by Ralph.