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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> 03 ttr 250 carburetor problems
Post Info TOPIC: 03 ttr 250 carburetor problems
efiles123


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03 ttr 250 carburetor problems
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I'm fixing up my friend's 03 ttr 250 that has been stored outside for the last 3 years.  The bike had previously ran good before being neglected, so he handed the bike over for a quick tune up and carb clean.  When I disassembled the bike, I noticed a lot of dirt in the air boot along with some in the carb.  I soaked the grimy carb in a container of solvent for a few days followed by carb spray to rinse, then compressed air to unclog jets.  I would've dismounted the float and the float pin although the shaft that holds the float seemed like it is fixed to the carb and cannot be removed.  I looked at the OEM expoded diagrams and it looks possible to disassemble although the part has been superseded.  So I wonder if they changed something since this specific year?  So anyway, I re-assembled the freshly cleaned carb that had a grimy looking float pin.  I put fresh gas in the tank and after a few minutes, one of the lines from the carb that is routed on the backside of the motor would dribble fuel whenever the bike is tilted to the right side.  Is this due to a defective foat and/or dirty float pin?  Also, I'm trying to figure out how to remove the float.  Please help.



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Andy_C


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Hi
The pin which holds the float is tapered,it will Knock out from one direction only which I think right to left with the carb float facing upwards and furthest away from you (I'm not 100% sure on that, since its sometime since I did mine),hope some other member can confirm or supply the correct answer.

The important thing when removing the pin is to support the aluminium "arms" when knocking the pin out,the pin can be a bit stubborn to move so it is essential to have the "arms" supported or it is possible to break them,then your in a **** load of trouble! you will possibly need a extra pair of hands to achieve this,one supporting the pins in some way and the other tapping the pin out.

Also the other piece of advice I'd like to offer is if the bike has been unused for years and the carb id "gummed" up it is well worth getting the carb sonically cleaned to ensure the narrow galleries in the carb body are cleared, sonic cleaning is very efficient way of cleaning carbs which solvents on there own cannot do as well.

Good luck
Andy


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TTRfan


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Perfect answer from Andy biggrin



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efiles123


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Awesome post Andy!  This should give me plenty to start on.  I'm gonna prob go ahead and order the float needle and the cylinder thing that it sits in.



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efiles123


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Ok so I got the float removed and the float needle and the cylinder that it sits in is dirty. I'm gonna replace the cylinder and measure the float level once I get it assembled.

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TDVT


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Seems as though alot of TTR's end up stored for a while, I know mine was & the carb was REALLY gummed up as was the petc0ck, which I ended up replacing entirely. You may want to think about replacing the jets as it's hard to get them really clean & they are inexpensive.

Also, my float tip was rotted away as I recall.

Good luck!



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NEK (Almost in Canada)

VERMONT USA
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