Replacing Intake/box with aftermarket filters.

[Kcarvajal]

Is it possible to do on the GZ250 without too much other mods? Just curious if there are any gotcha's, etc.

Thanks!

Ken

[blaine]

Originally Posted by Kcarvajal

Is it possible to do on the GZ250 without too much other mods? Just curious if there are any gotcha's, etc.

Thanks!

Ken

I assume you mean pod filters.It can be done,but will gain you nothing,and are a pain in the rain.You would need to rejet at the very least.When I done modifications to my bike,I used the stock air box with a after market filter.It flows more air,and is about a 1/3 of the price of a oem one.
HIFLO-FILTRO HAF-3503 air filter
HF-136 oil filter
This filter is listed for the GS 500 but is a direct fit,
:cool:

[Kcarvajal]

Blaine,

Thanks! It will be positioned where the box currently exists.

I wanted to re-arrange the electrical and battery placement. It seems like i would gain space by doing so.

My bike has been rejetted, according to the previous owner anyway when he installed the cusom exhaust. I think I'll tinker with it and see.

Thanks again!

[jonathan180iq]

If he rejetted for exhaust, you will still have to rejet when you change the intake. The intake is far more restrictive than the exhaust.

[geezer]

ever tried looking for light through the gz muffler? there aint none! exhaust is def the ost restrictive

[Kcarvajal]

Ok, a risk and more work than it's worth.

Thanks!
Ken

[mole2]

Originally Posted by geezer

ever tried looking for light through the gz muffler? there aint none! exhaust is def the ost restrictive

The thing you have to rejet for is when you get more air into the engine. If you modify the air intake then you must rejet. You don't have to rejet with most exhaust systems.

[geezer]

why is it no one seems to understand if you mess with exhaust it alters the amount of air the engine can injest, just like messing with the intake. they go hand in hand. mess with either one and you must undermost circumstances rejet!! ill bet you all money on this i swear. if you can get more air out, you can get more air in, common principle. engine = airpump.

[jonathan180iq]

Originally Posted by geezer

why is it no one seems to understand if you mess with exhaust it alters the amount of air the engine can injest, just like messing with the intake. they go hand in hand. mess with either one and you must undermost circumstances rejet!! ill bet you all money on this i swear. if you can get more air out, you can get more air in, common principle. engine = airpump.

Correct. But to reference your previous comment as well, of the two, the exhaust can handle more flow in its stock form than the intake can.

Switching from a restrictive factory air box system to the very open flow of a pod filter is a more drastic change than simply replacing the factory exhaust. That's why, unless you are placing the headers, the muffler part of an exhaust is simply called a slip-on and often times doesn't require a rejet. However, as you said, every bike is different and giving a blanket answer doesn't cover the hiccups that some people will run into.

[blaine]

Originally Posted by jonathan180iq

Switching from a restrictive factory air box system to the very open flow of a pod filter is a more drastic change than simply replacing the factory exhaust.

Also changing from a factory filter to a aftermarket filter is much less drastic than switching to a open pod filter.
:cool: