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2000 250 sx questions

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Recently I got a 2000 ktm 250sx and have been reading that the 2003 model was the most powerful model. What is the difference between the two, and what can I do to it to get more low end grunt? Thanks. Btw this is my first 2 stroke, I have previously owned large cc thumpers.

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gnarly pipe , flywheel weight  and carb tuning

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leave the gnarly on and do some carb tuning . you will be amazed with the difference

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7 hours ago, RedeyeYZ said:

I have a gnarly/turbine core 2 and was thinking about putting a pro circuit platinum 2/power core 2 shorty. Toughts?

The length of the exhaust affects the peak power.

Or are looking for top speed?

 

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what sort of riding are you going to be doing ?

is the bike going to be seeing high rpms for a long time ?

castor maybe overkill

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what sort of riding are you going to be doing ?
is the bike going to be seeing high rpms for a long time ?
castor maybe overkill

Overkill is good as long as it isn't bad for the engine

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8 minutes ago, RedeyeYZ said:


Overkill is good as long as it isn't bad for the engine

Overkill can be stuck rings and gummed up powervalves.

Not great. 

For racers who run right on the edge and need every bit of engine protection, and rebuild regularly (allows you to clean everything before it cruds up!!) its worth it.

Use a good quality non bean oil and be done with it.

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what sort of riding are you going to be doing ?
is the bike going to be seeing high rpms for a long time ?
castor maybe overkill

I ride in the Arizona desert. Long desert trails with tight technical sections and some nasty hills.
Overkill can be stuck rings and gummed up powervalves.
Not great. 
For racers who run right on the edge and need every bit of engine protection, and rebuild regularly (allows you to clean everything before it cruds up!!) its worth it.
Use a good quality non bean oil and be done with it.

What oil and ratio would you recommend?

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2 minutes ago, RedeyeYZ said:


I ride in the Arizona desert. Long desert trails with tight technical sections and some nasty hills.
What oil and ratio would you recommend?

Run what the previous owner ran if you haven't changed jetting and know what he used.

I personally run Motul 800, hitec oil and others that I cant remember. Yamalube 2R is good stuff also.

I run 40:1.

That is in a 200 and a 150. 

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Run what the previous owner ran if you haven't changed jetting and know what he used.

I personally run Motul 800, hitec oil and others that I cant remember. Yamalube 2R is good stuff also.

I run 40:1.

That is in a 200 and a 150. 

Thanks. The previous owner ran castor. Have you heard anything about Lucas semi synthetic?51fmkpo1yDL._SY400_.jpg.ab5c1c2f9f6e1aa9e9305306ed942693.jpg

 

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18 minutes ago, RedeyeYZ said:

Thanks. The previous owner ran castor. Have you heard anything about Lucas semi synthetic?51fmkpo1yDL._SY400_.jpg.ab5c1c2f9f6e1aa9e9305306ed942693.jpg

 

Sorry, I havent.

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