Can i run GX50 without the breather tube connected to the intake?

[cidg420]

Can i run GX50 without the breather tube connected to the intake? i would be installing a Velocity stack and filter in which i wouldnt have the routing to install the breather tube

 

[darwin]

It'll work, just plug it off out of the block. That's just an EPA thing to capture combustion fumes from the crankcase.

 

[Chainlube]

You have to take precautions if the tube comes from the valve cover. That is PCV tube and should be routed to ground so it doesn't pick up dirt.

 

[Sidewinder Jerry]

The breather tube regulates the pressure inside of the crankcase. So yes it's needed.

 

[GW's Motorized]

You should. If you do though, get a catch can or make one.

 

[Chainlube]

You should. If you do though, get a catch can or make one.

What do you think the cage behind you is for?

 

[darwin]

Seems Jerry is right. I wouldn't mess with the system. Way different then a typical 4 stroke motor. Seems crankcase pressure lubes the internals on these. I'm thinking because they're 360deg motors.

SPECIFICATIONS​

GX50​
Engine Type	Air-cooled 4-stroke OHC
Bore x Stroke	43 mm x 33 mm
Displacement	47.9 cm3
Net Power Output*	2.0 hp (1.47 kW) @ 7,000 rpm
Net Torque	1.6 lb-ft (2.2 Nm) @ 5,000 rpm
PTO Shaft Rotation	Counterclockwise (from PTO shaft side)
Compression Ratio	8.0:1
Carburetor	Diaphragm-type (overflow return)
Ignition System	Transistorized magneto
Starting System	Recoil
Lubrication System	Crankcase pressure–driven
Governor System	NA
Air Cleaner	Dry Paper
Oil Capacity	4.4 US oz (130cc)
Fuel	Unleaded 86 octane or higher
Fuel Tank Capacity	0.67 U.S. qt (.63 liter)
Dry Weight	9.1 lb (4.1 kg)

 

[GW's Motorized]

Seems Jerry is right. I wouldn't mess with the system. Way different then a typical 4 stroke motor. Seems crankcase pressure lubes the internals on these. I'm thinking because they're 360deg motors.

SPECIFICATIONS​

GX50​
Engine Type	Air-cooled 4-stroke OHC
Bore x Stroke	43 mm x 33 mm
Displacement	47.9 cm3
Net Power Output*	2.0 hp (1.47 kW) @ 7,000 rpm
Net Torque	1.6 lb-ft (2.2 Nm) @ 5,000 rpm
PTO Shaft Rotation	Counterclockwise (from PTO shaft side)
Compression Ratio	8.0:1
Carburetor	Diaphragm-type (overflow return)
Ignition System	Transistorized magneto
Starting System	Recoil
Lubrication System	Crankcase pressure–driven
Governor System	NA
Air Cleaner	Dry Paper
Oil Capacity	4.4 US oz (130cc)
Fuel	Unleaded 86 octane or higher
Fuel Tank Capacity	0.67 U.S. qt (.63 liter)
Dry Weight	9.1 lb (4.1 kg)

The tube is just a crank case vent from the valve cover. All it does is puts some of the waste oil in the intake. That's why if he removes it he should use a catch can. I have done this with a predator 212

 

[darwin]

GW, look at the specs where it says lubrication system.

 

[GW's Motorized]

GW, look at the specs where it says lubrication system.

The vent from the valve cover just goes into the I take, and get sucked back I to the engine, the vent is there to keep the pressure from building too high. If it put onto a catch can it will do the se thing. The only way there would be a problem is if you just let it dangle, then it will suck air through it and over pressurize. Catch cans have a check valve to keep this from happening, that's why I suggested it.