Gas smell

[nudle]

With the nice weather we have been having I took my spyder for a 100 mile trip. It was the frist long ride we have taken since the 2nd update and vent hose re-route, We stopped for lunch and my wife told me that she could smell gasoline on me. When we got home she said that I still smelled like gasoline.We found that my lower right pant and my sock and shoe smelled like gasoline.My guess is that it coming from the vent hose that they re-routed to the front of the motor.Anyone else had this happen.I guess that I will have to re-route the vent hose to the rear and get rid of the smell on my pants.I wonder who's bright idea it was to re-route the vent to the front on the motor.:dontknow:

 

[glynnk]

I've noticed the same thing after the 2nd update, however, in my case it's not a strong, "clothes saturation" smell, but a faint smell. I'll get back to the dealer and see what they say.

Glynnk

 

[krb1945]

Consider re-routing the...

vent hose back and below the tank secure to the frame or swing arm. I installed the vent hose before this mod was available and put it there. No gas smell from the evap! /Ken

 

[SpyderWolf]

That is very interesting to say the least. I have not had that issue, and would not want to have it either. Perhaps you have a loose clamp or something up higher and a fuel leak is coming from there?

 

[vendit]

I had the 2nd update done, and rode this past weekend. I did notice a slight gas smell when I stopped for lunch, and when I got home. I looked under the front where they put the new hose on from the evap canister, but I didn't see any fuel leaking. I am not sure where the smell is coming from. It was of course stronger in my garage when I got home and parked it. :dontknow:

 

[nudle]

:2thumbs: did you check your lower right pants & shoe.

 

[larryd]

I just had the second update done yesterday and got to watch the tech do the update at Stiller Motorsports in Kittanning PA...(a 5 hour ride round trip) And watching the tech installing the vent line I thought to myself "WHO WAS THE PEA BRAIN ENGINEER" that designed a vent hose to be placed in front of the operator???

But on a good note..I did get to ride a new RT-S in the shopping center parking lot..

 

[krb1945]

If you have a catch can...

that has the little drain valve on the bottom and you have no hose attached check to see if it is weeping. I was getting a gas smell on the 08 and it was the little drain weeping onto the crankcase. I plugged this valve with JB Weld and no more fumes. I did this after checking every hose clamp, gas cap and evap discharge which is vented back and below the swingarm.

I also hooked my catch can pipe back to the air box. Look closely at the clear tube and you can see oil in the bottom of the loop. This is some of the oil that gets by the catch can. I intend to increase the length of this tube some to get a lower bottom to the loop. I'm hoping the catch and loop will reduce the oil in the air box to a bare minimum.

With the three items addressed above I no longer get gas fumes when stopped. /Ken

 

[ataDude]

Ken... won't oil collected in the bottom of the loop block the breathing function?

that has the little drain valve on the bottom and you have no hose attached check to see if it is weeping. I was getting a gas smell on the 08 and it was the little drain weeping onto the crankcase. I plugged this valve with JB Weld and no more fumes. I did this after checking every hose clamp, gas cap and evap discharge which is vented back and below the swingarm.

I also hooked my catch can pipe back to the air box. Look closely at the clear tube and you can see oil in the bottom of the loop. This is some of the oil that gets by the catch can. I intend to increase the length of this tube some to get a lower bottom to the loop. I'm hoping the catch and loop will reduce the oil in the air box to a bare minimum.

With the three items addressed above I no longer get gas fumes when stopped. /Ken

 

[krb1945]

I believe there is enough...

air movement from the pistons up and down motion to cause the small amount of oil to splash up and down the walls of the tube. That is one of the reasons you still get some in the air box if the loop is short like the one in the picture. Sometimes I place too much faith in gravity. Gravity always seems to work real well when I get tossed through the air though!

I'm thinking about putting the stone filter back in one units catch can to see if it keeps more oil out of the tube.

I never seem to run out of experiments I want to try.

 

[bjt]

I'm thinking about putting the stone filter back in one units catch can to see if it keeps more oil out of the tube.

I never seem to run out of experiments I want to try.

That's what I would do also.

 

[boborgera]

This oil catch can is getting into the RUBE GOLDBERG territory'':dontknow:

 

[bjt]

This oil catch can is getting into the RUBE GOLDBERG territory'':dontknow:

 

[Way2Fast]

I agree.... I would think a longer loop would ultimately hold enough oil that it would merely function just like a plumbing trap.....liquid in=liquid out........or it would blow whole gobs of oil in occasionally as blowby pressure overcomes routine piston travel venting requirements.....

HDXBONES;
Didn't you put a large loop in the hose when you re routed the line from the air box to the atmosphere? I'm referring to your post on the more recent thread where you attached photos showing the hose's new position.

 

[bjt]

HDX's loop routing is up then down (and out). The one he questions as becoming a plumbing trap is up then down then up again. In that center dip, liquid oil would collect, just like in a bathroom or kitchen sink drain.

 

[krb1945]

Nudle, I replaced the

loop above in this thread and replaced it with this....http://www.spyderlovers.com/forums/attachment.php?attachmentid=4740&d=1258391676

Anyone interested in trying this mod can get the fuel system screen from tractor supply company. It is a Allis Chambers shallow bowl screen and gasket kit, $2.49. You can toss the gasket. I cut one side of the screen so I can shape it like a cone. I use the fuel and chemical clear fuel tube. It is ID 5/8 inch... to ensure a tight fit on the connections I use a 3/4 inch length of the black case vent tube pushed into the clear. I use a little oil lube on the black to help it slide in. Tight fit but it does work. The screen is probably over-kill but this is an untried and untested foam filter. Personally I do not want any particles in my case or carbs.

I did several tests with the loop in the above post and very little oil ever made it anywhere near the top. It splashed up the sides of the tube. I could see a little film to within 1.5 inches below the air box connection. But they are right though it is like a plumbing trap. I did test it up to 90 and I did not get oil in the air box in the area where the vent hose connects.

I replaced the loop because like many I do not like seeing oil anywhere except the crankcase and oil filter. The link above shows what I replaced it with. I have made two 50 mile rides at speeds up to 88 since going to the new crankcase vent tube. I just checked the tube to see if the oil had gotten to the top. I saw oil had penetrated the yellow foam a distance of 1/4 inch up from the bottom of the tube. That means it got through the fuel filter screen and managed to get another quarter inch.

I am still testing this one but the preliminary results indicate it may be a keeper since it keeps the case venting to the airbox just like the factory system did. I'm testing two units with this mod... one SM and one SE.

I will post additional info in a month or so.