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Maintenance advice from KTM and dirt bike owners.
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Maintenance advice from KTM and dirt bike owners. - December 24, 2012, 11:44 AM

So I have a some questions.
1. What is a good air filter? Something I can clean and reuse would be great.


2.
Anyone have any tips or tricks in draining gas from the tank? (other than ridding it)


3.
Oil l changes I am guessing after every hard day ridding?


4.
Any other tips or tricks to making sure this bike runs for a long time like it runs now?

I picked this bike up last Friday and itís in great shape I want to keep it that way.


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December 24, 2012, 11:57 AM

Twin air. Its also the factory filter.

Pull the fuel line.

I do every ride.

Check the valves, keep the filter clean, change the oil and filter often. The rfs motor is bulletproof so much so I have a couple in new chassis.


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December 24, 2012, 12:05 PM

Sense it has had race fuel in it I am going to guess and say it's best to drain it and run it dry till next use? I don't want carb issues.


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December 24, 2012, 12:12 PM

Quote:
Originally Posted by Slider View Post
Sense it has had race fuel in it I am going to guess and say it's best to drain it and run it dry till next use? I don't want carb issues.
What fuel? and why, seriously that motor does not need race gas.

There is a drain screw and drain line on the carb bowl.


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December 24, 2012, 01:12 PM

Even running it dry you will have some fuel in the carb. You can "run it dry", then drop the bottom access cover to the float bowl. This will let it air dry and should help prevent blockages from forming.

I also pick up the fuel additive from Yamaha for preventing deposits from forming. Haven't had a problem with the 450 this year once I started using it.

Mud


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December 24, 2012, 01:16 PM

Quote:
Originally Posted by jar944 View Post
What fuel? and why, seriously that motor does not need race gas.

There is a drain screw and drain line on the carb bowl.
I agree that it doesn't need race fuel. The owner was running an oxygenated fuel because his buddies at the performance shop he works at convinced him that he needed it. I told him too many times that he was wasting money when he poured that stuff into his tank.
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December 24, 2012, 01:19 PM

It has V power C12 fuel in it. Guy that owned it used it when he raced and liked the way the bike ran with it. I don't have the skill level to demand the use of race fuel but hey if it's free I will burn it


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December 24, 2012, 01:20 PM

Quote:
Originally Posted by MudDawg View Post
Even running it dry you will have some fuel in the carb. You can "run it dry", then drop the bottom access cover to the float bowl. This will let it air dry and should help prevent blockages from forming.

I also pick up the fuel additive from Yamaha for preventing deposits from forming. Haven't had a problem with the 450 this year once I started using it.

Mud
He can drain the carb and then crank the engine with the throttle open and again with it closed and the vacuum from the piston traveling down on intake stroke will pull the fuel out of the pilot and main passages which will leave them obstruction free.
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December 24, 2012, 01:24 PM

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Originally Posted by REDLEVEL View Post
He can drain the carb and then crank the engine with the throttle open and again with it closed and the vacuum from the piston traveling down on intake stroke will pull the fuel out of the pilot and main passages which will leave them obstruction free.
My thoughts exactly.


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December 24, 2012, 01:34 PM

Quote:
Originally Posted by REDLEVEL View Post
He can drain the carb and then crank the engine with the throttle open and again with it closed and the vacuum from the piston traveling down on intake stroke will pull the fuel out of the pilot and main passages which will leave them obstruction free.

Is that the best way to store it?


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December 24, 2012, 01:42 PM

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Is that the best way to store it?
Store it? RIDE IT!


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December 24, 2012, 01:44 PM

Quote:
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Is that the best way to store it?
IMO yes. I also store my bikes on top dead center or close enough to TDC that all the valves are closed. That prevents moisture and whatever else from gaining access to the combustion chamber.
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December 24, 2012, 01:49 PM

Another vote for twinair filters. Make certain it seats correctly and a bit of grease on the seal doesn't hurt. Ingesting dirt kills motors.

I change the oil every other ride. I figure I don't run'em hard enough or long enough to need a change every day. Some times I'll even go three rides before changing if they were short.

Storage: Draining the carb and drying it by spinning the motor as Chris suggested works. I tend to forget to so instead I alway add a mix of stabil & seafoam to the 5 gallon gas can I use for the 4wheeler and bikes and keep the tanks full when not in use. I sometimes don't start the 4-wheeler for a year at a time, still starts and runs fine.


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December 24, 2012, 01:50 PM

Ok good to know, thanks!


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December 24, 2012, 03:01 PM

I tend to ride my bikes and do not need storage. But use the marine stabil in your fuel.


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