carbon residue on exhaust tips?

[dexter]

Hi guys,
I put rx mountain exhaust tips on my warrior this summer to dress my sled up a bit and noticed something after a couple rides this week. I seem to be spitting out some carbon or some black residue from the exhaust. I noticed it because of the silver colored tips. Is this normal? I am thinking that I am running too rich, but how do I adjust this? Any help is appreciated.

 

[BVER FEVER]

From what I have seen, everyone has this. If you want to clean it up put some carb cleaner on a rag & give it a wipe.

 

[Sno Jet 70 SS]

i have that on mine too ..i just clean it with simple green.

 

[dexter]

thanks for the input guys... I am glad to hear this is normal.

 

[rxrider]

It's normal. My fix was to paint the silver exhaust caps silk black to hide it.

 

[Len Todd]

You might want to try running some Ringfree and clearing up the carbon inside the engine (e.g. Rings). I had the carbon deposit problem. Then I did a Ringfree shock treatment. Now, I run it all the time. The carbon deposits are all but gone.

 

[rxrider]

How is the shock treatment procedure? Do you pour ringfree into the spark plug holes?

Do you pour some into the engine oil?

You run it all the time, do you pour some into every tankfull of gas? How much ringfree to a tank?

Thanks

 

[dexter]

I have the same questions... I have never heard of ringfree... I am interested in what to do..

 

[Len Todd]

Ringfree is a Yamaha product. It is designed to clean the carbon off the top end of the engine, including the Piston Rings. If the Piston Rings get carboned up, the pre-2005 RXes may start to show more oil consumption. The first hint of the oil consumption is in the tail pipes (i.e. carbon buildup).

A shock treatment is spelled out on the Ringfree container. Essentially you add a large amount (e.g. 1/2 container) to a full tank of fuel. I have only had to do this once. After 50 miles or so, the oil turns black and you have to change the oil and filter after about 1 tank of gas. Follow the shock treatment measuring instructions on the container.

Then after doing a shock treatment, I personally have chosen to run it most of the time using 2 - 3 ounces per tank of gas, at least every other tank. If you do a shock treatment and then run Ringfree frequently, you will see a great reduction in the carbon buildup in the pipe tips and on the trim rings. But, if you are not consuming excessive oil, you may not want to encounter the expense of the stuff.

Sea Foam is also another option that may free up carboned rings. Add it to your oil for 50 miles and change the oil and filter. Some folks also run it mixed in the fuel. Some occasionally dump a very small amount of it in the cylinder and roll the engine over w/o plugs installed.

You might want to try a search on these two products.

 

[rxrider]

Len Todd - Thank you for the info.

Yamaha Motor Scandinavia does not import the stuff to Norway and Sweden, so my dealer told me.

OK - I do not have a problem with excessive oil usage, I only wanted the info posted in this thread for those who need this treatment for their enginges.

My '03 did use some oil the last season before going turbo, that was when the alu exhaust caps went black on me. I polished them and painted them black to match my Black and Blue theme on my turbo sled.

Thank you Len, keep up the good work

 

[low slung]

My warrior was using alot of oil last winter so before this winter started(and started very early) i gave it a treatment of YAMAHA COMBUSTION CHAMBER CLEANER.Followed the directions on the can(sled was blowing smoke rings and spitting out black carbon during the process),then i change the oil,since then i have been getting better gas mileage and oil comsumption has been much better(cross my fingers).

 

[dexter]

wow, sounds like it was doing something... how much did the stuff run you? did you get it at the dealer?

what is the process to do this? thanks for the advice

 

[low slung]

Yamaha sells it for about $13.95 canadian.I use about 7/8 of a can(the directions calls for 2/3 until you stall the motor).Its really easy to stall the motor with this stuff at idle but i just ran it through at a speed which kept it from stalling(kept the parking brake on for safety sake).You have to remove the top of the air box and spray it in each carb at the same time someone is keeping it above idle.You should do the process outside because the sled will smoke like a 2-stroke(the smoke rings are impressive).I change the oil after because it was the begining of the season and to remove any of the carbon that may of got inside the oil.(most of the carbon went out the exhaust).

 

[low slung]

Ran the sled today after a snowstorm in some really deep drifts.Gave it almost full trottle at 10,000 RPM and all of a sudden a cloud of black soot can out the exhaust.Been about 100+ miles since the cleaning so it must be some carbon left over in the muffler.

 

[TonyVT]

Seafoam works well also. there are lots of write ups on it in here. Most auto parts stores carry it and it's cheaper.. (i think) I ve used it too and it works good. Add some to your gas and also to the oil when you change it...

Ringfree is a Yamaha product. It is designed to clean the carbon off the top end of the engine, including the Piston Rings. If the Piston Rings get carboned up, the pre-2005 RXes may start to show more oil consumption. The first hint of the oil consumption is in the tail pipes (i.e. carbon buildup).

A shock treatment is spelled out on the Ringfree container. Essentially you add a large amount (e.g. 1/2 container) to a full tank of fuel. I have only had to do this once. After 50 miles or so, the oil turns black and you have to change the oil and filter after about 1 tank of gas. Follow the shock treatment measuring instructions on the container.

Then after doing a shock treatment, I personally have chosen to run it most of the time using 2 - 3 ounces per tank of gas, at least every other tank. If you do a shock treatment and then run Ringfree frequently, you will see a great reduction in the carbon buildup in the pipe tips and on the trim rings. But, if you are not consuming excessive oil, you may not want to encounter the expense of the stuff.

Sea Foam is also another option that may free up carboned rings. Add it to your oil for 50 miles and change the oil and filter. Some folks also run it mixed in the fuel. Some occasionally dump a very small amount of it in the cylinder and roll the engine over w/o plugs installed.

You might want to try a search on these two products.