This is the craziest airbox...can I fix it?

[Frankencelery]

Fabiodriven referred to the YTM225 airbox as a "total abortion". I think I have to agree with him! I was working on my electrical problem and noticed that the airbox is cracked all down the side. Worse, the filter was laying in the bottom with nothing holding it in. So I yanked it out and I'm trying to figure out if this is repairable. I don't really want to buy a whole airbox if I can help it. Do you guys think epoxy would hold this seam together?

How about the filter holder? Shouldn't it have some foam around the part where it contacts the hole in the front of the airbox? This one doesn't. What was wrong with a rubber collar and hose clamp? Finally, the plastic end cap that's apparently supposed to hold the filter in is broken off.

176677176678

On the filter holder and cap, you can still get replacements, but those 2 parts are $50!

[ZacH_GrifF]

You could try plastic weld and then just getting a new filter for it.

[C.J]

You could try plastic weld and then just getting a new filter for it.

This is what I was gunna try doing. Mines busted down every seam and someone tried silicon ing it back together and it's just crap. Lot of work ahead of me for it. Lol

But yea, epoxy the cap, plastic weld the box.

[Dirtcrasher]

Clean it, wipe it with alcohol (not a beer) and clamp it with some shoe goo. That stuff fixes everything..........

[Frankencelery]

Clean it, wipe it with alcohol (not a beer) and clamp it with some shoe goo. That stuff fixes everything..........

Thanks for the clarification on the alcohol, DC! I think I'll try that. I've done a bit of plastic welding, and sometimes it works great, but this is a really big opening, and I'd die of toxic inhalation trying to do all that. It might be good to "spot weld" a couple places to hold it together and the shoe goo to fill in the cracks.

What about the mounting surface of the filter holder? I assume there's supposed to be some foam there. Can I use plain old weatherstripping of some kind, or does it need to be fuel resistant?

[Ghostv2]

http://www.ebay.com/itm/YAMAHA-YFM200-MOTO-4-YTM225-YTM225DX-TRI-AIR-FILTER-Moose-M7638006-3-80-06-/290951690521?pt=Motors_ATV_Parts_Accessories&hash=item43be127919&vxp=mtr
Thats suppose to be what the filter looks like, gives you an idea of what its like. Slides over the filter cage. Nothing really holds it in from what i remember you kinda just shove it on there and it rests in between two V shaped things on the bottom.

My 225 airbox is cracked on the top mounts and i planned to just use a good epoxy. I used it in similar applications on my trikes before and it held up with no problems.
With such a large crack like that it would get messy and be kinda a problem. I would say if you have experience plastic welding just do that.

[Frankencelery]

Thanks, but I know what the filter looks like, I have a new Yamaha one. It's the mating surface on the holder I was interested in.

Here's one, but it still doesn't show the mounting surface! (not that I would pay that price, either)
http://www.ebay.com/itm/1984-Yamaha-YTM225-DX225-air-filter-cage-screen-/221236097593?pt=Motors_ATV_Parts_Accessories&hash=item3382b2f239&vxp=mtr

I'm betting that it's nothing but foam and I could use some weatherstripping or something. My 3-wheeler budget just ran dry for the year, so I'm having to get creative...

I also need the end cap. Look at this:
http://www.ebay.com/itm/1984-YAMAHA-YTM225DX-TRI-MOTO-AIR-FILTER-CLEANER-END-CAP-PLATE-/400315556778?pt=Motorcycles_Parts_Accessories&hash=item5d34aaa3aa&vxp=mtr

Wow. Hope that isn't a member here. I'd pay $5 (shipped) for that part used. This part is still available, and costs $12.92 at Partzilla.com

[trizilla]

you are correct on the foam ring on front of the cage. just cut some kind of foam in a ring and glue it to it.i've done it dozens of times, try to get foam at least 1/2 in thick. and yeah, all the parts minus the box are still available from yamaha but they aint gonna be cheap.

[shortline10]

I would repair the air box with another piece of plastic covering the crack and some rivets to secure it and a little sealant to seal it up .

[atc007]

[QUOTE=Frankencelery;1251885]Fabiodriven referred to the YTM225 airbox as a "total abortion". I think I have to agree with him! I was working on my electrical problem and noticed that the airbox is cracked all down the side. Worse, the filter was laying in the bottom with nothing holding it in. So I yanked it out and I'm trying to figure out if this is repairable. I don't really want to buy a whole airbox if I can help it. Do you guys think epoxy would hold this seam together?

How about the filter holder? Shouldn't it have some foam around the part where it contacts the hole in the front of the airbox? This one doesn't. What was wrong with a rubber collar and hose clamp? Finally, the plastic end cap that's apparently supposed to hold the filter in is broken off.


Welcome to the wonderful world of Yamaha. I love some of their stuff, but a lot leaves you just really scratching your head !!

[Frankencelery]

Thanks everyone for all the suggestions. I ended up screwing 2 small zinc-plated L brackets around the corner to hold the crack together and then filling in both inside and out with Shoe Goo. Worked perfectly, but I almost got in trouble because the bracket made the airbox too wide to fit between the frame. It was all back together before I realized I should have taken pictures. I also used some weatherstrip to put around the filter holder mating surface, which seems to be working as well. We'll see if it withstands the test of time.

I also noticed that it's quieter, which is pretty cool. I didn't realize how much noise I was getting from having no air filter! With the stock muffler and repaired airbox, it's actually quieter than my SX.

[Dirtcrasher]

Great to hear and you won't be running lean anymore.....