Having a head breather is not a performance enhancement, per se, it helps dissipate excessive engine heat and air pressure that can build up in the head.

 

thanks. about how much would it cost to get one?

 

like 6 bucks if u make your own

 

thanks. about how much would it cost to get one?

To be honest no more then 3 dollars and a drive up to ace...... I made my own. All you need is to drill a 3/8 hole, or what ever barbed hose addaptor you get, into the top valve cover screw in the barbed hose adaptor and put whatever size tubing the top is. Here is a picture if you dont recoize the name.

 

waste of time!!!! dont bother!!

 

I didnt notice a difference but so Easy and Cheap. Even if it doesnt do much its better then buying one for x5 times the price or even more.

 

youll probably just get dirt in the tube

 

i put a little uni filter on mine.

 

I know I must sound like mr. cheap.



You can take a little piece of panty hoe and a ruber band and just wrap it around the panty hoe to make it stay.



It is a very little chance of dirt getting in a tube if its long enough....



Not trying to be the homeless guy just the econmic guy hahahah Youll get the same results with everything I just told you though....

 

It's a recession bro!

 

yep you got it so I think if I guy can save 20-30 bucks on stuff he can whip up in 5 minutes then so be it and get the same results! Awesome!

 

Does anyone else find that the clear hose given with most of these breather kits to be garbage? Mine melted the first ride, and leaked oil spray everywhere. I'm thinking about swapping it out for a breather line from my ktm.

 

Does anyone else find that the clear hose given with most of these breather kits to be garbage? Mine melted the first ride, and leaked oil spray everywhere. I'm thinking about swapping it out for a breather line from my ktm.

How the heck did you melt it anyways ???



Usually the clear braided hose that comes with the breather covers are better than what you buy at any hardware store ..



I would think if your motor is melting clear braided rubber hose ?? Than you have a serious over heating problem ???





I use the hardware stored clear braided hose and it work great for years !! I replace em when they get really briddle or really discolored from the heat and oil stain .. Doesn't cost much either ..

 

That's the same hose. I don't think it's overheating.. I have an oil cooler, and it's only like 30*F here.. Maybe it's just me..



It's not deformed or anything, but it seems like it's melted to the breather cap. I was just wondering if anyone had experienced this. Who knows though, maybe my jetting is so lean that I'm running hot.

 

I had one, that worked great. I know that engine took a beating, because I didn't rode it is 2nd gear wfo most of the time (our track was pretty tight)...and never had any issues with over heating.

 

I made one up one time, used the metal threaded valve stem from an old tube, drilled a hole just smaller than the stem diameter, threaded the stem in place with Yamabond on the threads, snugged down the stem nut, and used the braided hose from a hardware store. Worked fine for me.

 

the only thing a breather hose has done for me is make my engine dirty with the water and oil that comes out of the hose

 

I made one up one time, used the metal threaded valve stem from an old tube, drilled a hole just smaller than the stem diameter, threaded the stem in place with Yamabond on the threads, snugged down the stem nut, and used the braided hose from a hardware store. Worked fine for me.

Hey Tim .., I heard that you have ta worry about screw'n those barb'd fittings too far in , or that valve tappet will hit it and then you bend the valve .. Is this true ?

 

Dont think its worth it its just another thing that you might have to worry about cause dirt and stuff can get in the filter and if you could just leave the valve cap i think your better off.

 

There is no performance gain run'n one ..



I run one an all my race bikes so I keep an eye on the condition of the motors top end ..

 

Theoretically speaking...at what point does it become a good idea to have one. Is it a combination of engine mods? Is it as simple as high compression piston = head breather?

 

the only thing a breather hose has done for me is make my engine dirty with the water and oil that comes out of the hose

If there is water and oil coming out of yours, you made something terribly wrong, my friend!

 

Theoretically speaking...at what point does it become a good idea to have one. Is it a combination of engine mods? Is it as simple as high compression piston = head breather?

Any bore up kit should have one, because when you increase the bore size in a motor you also increase the amount of air movement in the engine cases, because of the larger piston acting like a pump...On a stock motor the breather at the back of the cases is more then enough, on something like a 124cc bore kit, that is not going to be enough to allow the crank case pressure to release through that tiny barbed fitting...If your motors crankcases arent breathing easily, you can be building up pressure in the cases which can blow out gaskets, cause leaks, and also hurt performance slightly...

 

My yx150 was breathing heavy through the tiny crank case hose until I modified the POS dressup dipstick that came with the motor to incorporate a vent into it.

 

As a few others said, dont waste your time or money.