Johnson 3.5 hp Outboard air filter??

[Steve_Jones]

I've been fitting a kill-cord to my Johnson 3.5 (mostly because my son is now taking an interest in 'driving' the tender!) and whilst doing so have discovered a problem, or is it /forums/images/graemlins/confused.gif

Having removed the control panel from the back of the engine, I noticed that the rear of this panel forms a chamber which fits over the back of the carb air inlet. I would have thought (from car engine experience) that an air filter might be fitted into this chamber, but there is none present. Should there be one, or does such a simple engine not require one?

I can't find the manual and have searched online...

Thanks guys!

 

[Kawasaki]

Does the "chamber" have "grill" where the air goes in ?

 

[Steve_Jones]

No, just an empty chamber with a 'U' shaped inlet slot at the bottom.

 

[Kawasaki]

Won,t be a filter in that one.
Some types have basic "cover with holes/ grill" over the "u" shaped slot.
Got any idea as to the year of build, case I can help further?

 

[VicS]

Check the model number which is on one side of the mounting bracket and then armed with that and the year of manufacture you can access exploded parts diagrams on the BRP website


If you do not know the year then you can get it from HERE

But i predict that you will not find any kind of filter.

You should be able to get a "SELOC" Tune up and Repair Manual from Amazon or your dealer

 

[Steve_Jones]

Thanks to Kawasaki and VicS, great stuff, sorted! The outboard is a 2002 model and I found it on the BRP website, indeed there is no air filter.

Brilliant resource!

Cheers all, kill-cord fitted and engine re-assembled

 

[William_H]

No I have never seen a small O/B with any from of filter. The chamber is probably a air silencer to reduce noise of ingoing air.All my Johnson/Evinrude old O/Bs just have a hole in the open end of the carb. olewill

 

[Clyde_Wanderer]

In response to the air filter question, I have rebuilt quite a few older outboards, from 2-75 hp, and have never seen an air filter element on any of them.
I cant see why there would be a filter on an engine designed for use on water, its not as if there is going to be much dust kicking around the surface of a lake or the sea.