Fuel puking out overflow line

[Lee R]

Now I'm not sure what to believe

[Danimal]

So ignore the white dot. Should the outlet be on top, or under the clamp?

[SpudRider]

Originally Posted by keithmaine

my hose looks like Lee's above but the white dot is on top. Not at all like blog photo
so which is correct.

this is my bike setup

You OCS is oriented upside down. Don't worry about the white dot. The hose connection should be at the top, and the clamp should be below. You shouldn't have a big loop in the hose. You should flip the OCS to the orientation shown in the photograph below.

[SpudRider]

Originally Posted by Lee R

Now I'm not sure what to believe

I edited my previous post. I didn't look closely enough at your photo. Your photograph shows the OCS in the incorrect position. You should not have a big loop in the hose.

[SpudRider]

Originally Posted by Danimal

So ignore the white dot. Should the outlet be on top, or under the clamp?

Yes, ignore the white dot. The hose should connect at the top of the OCS, with the clamp below. There should not be a big loop in the hose. The correct orientation for the OCS is shown in the photograph below.

[keithmaine]

Spud as usual you come through for us.

[Lee R]

Thanks Spud,

Once again proving this site is awesome.

[willy dog]

mine was installed upside down with clamp on top after i switched it did get little gas in tube after about 30 miles more than i was getting trying to keep it under 7000 rpm might be lugging it to much may your zongs be long i was changing elevations from 500feet to 2500 back and forth

[Abe - Kansas Rider]

Hello Forum

Despite the cold weather and that I had to work on Xmas, still managed to get a few short rides around town, 60-ish miles on the bike so far.

Yes, the down drain clear pipe is half full of clear pale yellow fluid, not milky, no particles. And yes, the capsule shaped separator on my bike is NOT mounted the way shown here in this thread i.e my clamp is on top, hose to airbox has a large bend and the nipple /vent to airbox is on/towards the bottom.

So should I simply invert the stock arrangement? Wonder if anyone who had talked to CSC about this and what was the feedback from CSC/ Zongshen

Thanks

Originally Posted by SpudRider

The oil separator for the RX3 engine is shown below.



As the piston is pushed down by the burning fuel in the combustion chamber, some of the exhaust gas pushes past the piston rings, and exits the crankcase vent tube. This gas is also persuaded to exit the crankcase by the tube which connects the oil separator to the air box, which is an area of high air flow.

The crankase vent tube connects to the oil separator, which uses foam to separate the oil and liquid contaminants from the gas. Gravity causes the oil and contaminated liquid to fall into the tube below the oil separator. The contaminated gases are drawn into the air box, where they are infused with the fuel/air mixture, and burned in the combustion chamber of the engine.

The CSC blog describes this process in the July 1, 2015 installment, which is linked below.

http://californiascooterco.com/blog/?p=17262

[SpudRider]

Yes, you should flip your OCS to match the photograph above. The hose connecting to the air box should be on top of the OCS, and the clamp should be on the bottom. If you orient the OCS in the correct position, you should collect less fuel in the down tube.

[Abe - Kansas Rider]

Spud
You are always prompt with your replies, thanks for the clarification.
CSC/Zongshen should look into this issue before shipping out the bikes.

[Abe - Kansas Rider]

Hi all.

I had shot an email to CSC at the same time, i had posted my first query here regarding the position of the separator / OCS.

Heard back from Gerry at CSC today. Here is his reply. Hopefully this can officially confirm, to what has already been concluded by the forum members.

============
Ok
After inspection of breather separator
Here is the conclusion
The separator will operate in either position
However it will operate more efficiently with the inlet in the upper side as in pic one

Reason
The separator has no baffles in it only a sponge type material
As the sponge fills with liquid it drains into the clear hose
Since the top of the sponge is at the inlet it makes better sense to install separator with inlet up

Caution

Making sure breather hose has no kinks is more important then a properly installed separator

Hope that helps
Thanks



CSC motorcycles
Service manager
Gerry Edwards

[SpudRider]

Thanks for sharing the information, Abe.

I haven't opened my oil contaminant separator (OCS). However, Detours has examined the internal construction of the OCS, and I don't remember him mentioning anything about a sponge inside the OCS.

http://www.chinariders.net/showthrea...t=14939&page=6







Indeed, if the OCS contains an internal sponge, a straight tube from the stator cover is more important than the orientation of the OCS. Nevertheless, if you orient the OCS with the tube at the top, and the clamp at the bottom, you will certainly have less of a kink in the tube.

[Abe - Kansas Rider]

My pleasure Spud
Ps
Where is the fuel cock/lever located for on, off and reserve tor there's none of this bike

[SpudRider]

Originally Posted by Abe - Kansas Rider

My pleasure Spud
Ps
Where is the fuel cock/lever located for on, off and reserve tor there's none of this bike

This is my first motorcycle with fuel injection. However, I don't think motorcycles with fuel injection have a fuel petcock. At least the Zongshen RX3 doesn't have a fuel petcock. Therefore, you don't have a reserve fuel supply. You must watch the fuel gauge and the trip odometer to determine when it is time to refuel.