Question about 2002 Yamaha TT-R 250

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I have no spark,it was running fine an just died.any ideas? yamaha TTR 250.

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Ok I'm going to start with the standard follow the wires and check all connections routine as they can vibrate lose. Then the curve ball. Check your kickstand kill switch with a continuity tester. Even though you may see it move the electrical connection may not be completing and opening. Finally if it all checks out it may be your coil or worse your ignition module.

Posted on May 08, 2010

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Spark plug for ttr 250

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2001 ttr 250 dies when accelerating hard

Hi, Jacob and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a "LOAD" test if necessary, your battery may show 12.5 volts but have little or zero amps and needs to be replaced.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, points/condenser ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Accelerator pump damaged or not working.
11. Water or dirt in the fuel system, carburetor or filter.
12. Restricted, blocked or kinked fuel line.
13. Fuel tank empty.
14. Fuel tank contaminated with ethanol sludge.
15. The gas cap is not venting properly or fuel tank venting system blocked.
16. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
17. Needle and seat stuck closed in the float bowl.
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1 Answer

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I have the same problems with my 1999 TTR 250, were you able to find out anything?


May 04, 2010 | 2002 Yamaha TT-R 250

1 Answer

My bike is running fine but if i give it gas it sputters and dies. any ideas?

Gap or replace the spark plug. Two cycle engines eat plugs. If that does not fix it replace the spark plug wire.

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TTR - 225 floading, running bad?

Check your carb. vent tubes, they may be plugged w/dirt. or try running w/out vents hooked up, to test.

Sep 19, 2009 | 2003 Yamaha YZ 250

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95 ttr 250 surges then dies after riding for a minute or so. wait another minute and it will run again for a shorter amount of time. have checked, adjusted and replaced carby,spark plug,coil,fuel tank and...

Sounds like the needle and seat valve is the problem. I would take the float bowl off and check it again to ensure that it is moving freely up and down, check the end of the needle valve to ensure that there is no distortion on the valve. Also check the carb boot over between the carb and the cylinder head, check for cracks or hole or even the bolts they may have become loose.
As far your question about oil coming out when you have taken out the stator . Don't worry this is normal.
Hope this helps.

Sep 05, 2009 | 2002 Yamaha TT-R 250

1 Answer

I have a 1994 ttr 250 and the battery doesn't stay

simple test: disconnect + battery terminal and check if there is a spark if you touch it back on the terminal ,if not leave terminal disconnected overnight and reconnect terminal and check.if battery flat -replace if not get back to me

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TTR 250 battery is draining when bike is not in use..

Definitely get a new battery. Also be sure to clean up all of the connections

Mar 29, 2009 | 2002 Yamaha TT-R 250

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i u replaced your fuel filter could be clogged or dirty

Nov 11, 2008 | 2002 Yamaha TT-R 250

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