engine breather rooting

Taffy · May 11, 2004

ok so it's routing but i don't want to hear you americans abusing the english language with raow-ting. it's rooting lads ok!

what the hell am i on about i don't even speak it moyself bewyz :twisted:

anyway, the point is-the engine breather. where do you like to route it too?

if i go straight down ala yamaha it will suck up water when you kickstart it- right? so do you send it behind the carb? low or high?

pipe off of a certain other make? something nice and malleable? (so it won't be like the left radiator pipe then will it!!!!!)

how did you close off the frame hole? plate and mastik?

Taffy

FC501EAST · May 11, 2004

Breather, ah, rooting...

Hi, Taff..... All's ok here, I unnerstand ya!!
I run the hose up from camshaft cover, left side of frame, forward of fuel tank and over top of frame, between front of tank and headtube/damper pin mount, and a short (5cm) run to an automotive-type crankcase breather valve, NAPA p/n 2094, tucked in just between front of tank and Rad. on right side. Mine is self retaining (stays put) but son-in-law had it zip-tied to right front tank bumper.
Hole in underside of frame is covered with a piece of sheet rubber (aka piece of old inner tube), sealed to stub and hose clamped.
Works great!! I have performed inverted trail-clearing 8O on more than one occasion, with no oil in "airbox" or carb. Just dirt in me drawers!!
My gallery may show some of the, ah, "path" of the hose, which is just automotive crankcase breather hose.
Gary

tuts · May 12, 2004

taffy;
i have heard that dale has a clever trick where he runs a small breather filter on the end of the vent tube and then covers that in a small tupperware container with drill vent holes. maybe he will add a pic or two for us mortals.
hope this helps
tuts

send us some pics of how you do the raow-ting.

deaks · May 12, 2004

I run a short length of heater hose (about 3"-4") with a small K&N filter on it. The filter is intended for a car breather.

I plugged the frame by using a short piece of hose capped off with silicone at one end and held on with hose clip.

Works a treat

HTH

Deaks

tuts · May 12, 2004

deaks said:
.............I run a short length of heater hose (about 3"-4") with a small K&N filter on it. The filter is intended for a car breather.

deaks;
i did the same thing but noticed it was always a bit oily/dirty where ever the breather is. i think thats why you 'capture' that breather inside a small tupperware container with vent holes.
tuts

Simon · May 12, 2004

deaks said:
I run a short length of heater hose (about 3"-4") with a small K&N filter on it. The filter is intended for a car breather.

I plugged the frame by using a short piece of hose capped off with silicone at one end and held on with hose clip.

Works a treat

HTH

Deaks

Naughty, nauhty, you mean you don't have it plumbed into a catch tank???? :wink: :wink: :wink: :wink:

Simon

deaks · May 12, 2004

Simon said:
deaks said:

I run a short length of heater hose (about 3"-4") with a small K&N filter on it. The filter is intended for a car breather.

I plugged the frame by using a short piece of hose capped off with silicone at one end and held on with hose clip.

Works a treat

HTH

Deaks

Click to expand...

Naughty, nauhty, you mean you don't have it plumbed into a catch tank???? :wink: :wink: :wink: :wink:

Simon

For Prosupermoto the regs dont say that oil breathers have to be into the catch tank, just rad and carb vents.

I did try routing the head vent into the catch tank as I have one of the moto supplies jobbies......BUT it made the bike run like a dog.

Deaks

Horto · May 12, 2004

I have just installed mine and just ran the hose over to the right hand side (other side to kickstarter) and zip tied it down the sloping side frame member terminating just above chain to rear of countershaft sprocket.

I figured this way the jettisoned oil could lubricater chain and seam as good as spot as any.

I havent installed any end cap or filters justleft tube open. Is it nessesary to put a filter etc. If so I thougt I might just stuff some foam inside end section and then screw a self tapper or 2 through it to hold it in place.

Cheers
Horto

Taffy · May 13, 2004

horto

all along i felt that i either wanted to go the yamaha route (pun intended) straight down the left of engine but this has dire consequences for WR's in water.

if nobody has heard, when you stall a WR in water and then kickstart it, the engine sucks water up the pipe straight into the head/cam assembly!!!

husawannabe took the pipe straight over the back of the frame and down infront of the swinger. he said that his info came straight from the factory.

i may do this AND have a smaller tube feed off and up into the top of the frame somewhere with the T-jointed carb breathers as previously discussed.

Taffy

tm-enduro · May 16, 2004

I will endeavor to take and post photos of my breather routing. In short, I have routed the breather towards the rear of the bike, installed a checkvalve (I'll check for a P/N) in the line, and routed a fuel line size vent along the upper subframe to the area where the seat meets the rear fender. It works very well. The bike has to be upside down for a couple of minutes before oil starts escaping, and the bike restarts easily.

BundyBear · May 16, 2004

TM
Why the check valve & which round is it? I assume the case ends up under vaccuum.

Also, my fuel tank breather is routed down through the bottom right hole through the dash beside the speedo and vents in front of the headstock. When I put it upside down on left side the speedo ended up half full of fuel! It still works bit I'm hoping the printing doesn't come off the dial. I now have the tank vent going into the air intake grille to the left of the tank.

JontyP · May 17, 2004

I have mine routed over the top of the motor to a bottle on the lower right side below the rad. Question for you all here, can the fact that the breather tube is now "open-ended" affect how the bike runs? Mine is definately not quite right even after a top end rework/valve re-grind. I know everything else to be correct. Bottom end throttle response is VERY lumpy and I've nearly run out of ideas.

Taffy · May 17, 2004

deja vue

on TT they had all these convoluted ways of dealing with the tank breather yet the roadrace boys had it the simple way:

all you do is take a pipe from the cap up to the bars and go around the bars 3 or 4 times and then just point it downwards.

fuel never leaves-even when you fall-and then when riding the air pulls the fuel around and swops in the tradional way bubbles and fluids work. IT NEVER GOES WRONG AND IS AS GOOD AS IT SOUNDS!

Taffy

wildbill · May 31, 2004

I have had mine rooted straight up {3-4"} with a small automotive breather filter on the end.It is made out of plastic so it shouldn`t hurt anything.I`am thinking about useing a longer hose and route the line back toward the side air filter.Have not tried to yet,waiting on something else for now.I don`t know if it will work or not due to the hose being so stiff but I will find out soon enough.

Search

Search

engine breather rooting

Taffy

FC501EAST

tuts

deaks

tuts

Simon

deaks

Horto

Taffy

tm-enduro

BundyBear

JontyP

Taffy

wildbill

Similar threads

Register CTA

Recent Discussions