Question about 2002 Yamaha TT-R 250

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2000 ttr 250. starting problems

With choke on, engine starts for 5 seconds and dies. i do this 20-25 times and then it runs great. what do i do?

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I u replaced your fuel filter could be clogged or dirty

Posted on Nov 11, 2008

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My 2000 Explorer 5.0 engine is really hard to start.


Fuel can be a problem. There is a system called the "cold start sequence". This is an electronic solution to the old choke system. This system is triggered by the water temperature sensor. If the water temperature sensor is stuck on a warm mode, the engine will not have a choke.

You might change the fuel filter and check the fuel pressure. Check battery voltage too as sometimes weak voltage will make for misfires and as the alternator creates more juice the engine runs better.

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07 ttr 125 cranks but will not start right up when it does it will not take gas it dies and you have to turn key off and back on before it will start back it will idle for a few seconds and die again over...


I have two ttr 125's and my son has another, all 05's but i ran into this with a friends 02 as well. All ttr 125's are cold blooded bikes to say the least. the cold starting procedure that works is to first lean the bike over to the left till it dribbles a little gas on the floor. hit the electric start for a few seconds only, wait 20 to 30 seconds and do it again. holding the starter button down and cranking will do nothing but flood the bike out. short busts only, dont give it any gas ever, this will also do nothing. first it will start for a brief moment then die, hit the button for about 3 to 4 revelutions and wait, the next time it will start again, most likely only for a few seconds again, repeat this and each time it will run a little longer till it keeps running on it own. the best way to get your ttr to start easier is to cut the top of the airbox off, this will give the bike more power (youll see why when you look at the tiny opening) and allow you to spray starting fluid under the back of the seat right into the airbox. it makes starting a cold bike 5 times faster. usually only 2 repeats of the starting procedure.

Feb 22, 2011 | 2002 Yamaha TT-R 125 L

1 Answer

Yamaha ttr 125 will start and run great with choke on. As soon as choke is off bike dies. I cleaned the carburator with no luck. I have read several reviews describing the same problem, will rejetting...


Check the intake for leaks.
Get it running and spray a little carb cleaner around the intake to see if the RPM's change.
If they do then you have an intake leak.
The jets may be clogged up but I do not think you need to increase the size at all

Feb 19, 2011 | 2005 Yamaha TT-R 125 L

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I AM RESTORING A T020 MF. I REPLACED ALL WIRING AND IGNITION SYSTEM AND REBUILT THE CARBURATOR, AND ADJUSTED IT TO SPECS. I GOT IT TO START RIGHT AWAY AND IT SOUNDS GREAT. HOWEVER, IT WILL ONLY RUN FOR...


Ok a quick check. When the engine cuts out and you go for restart it dies within 5 seconds. Next time put the ignition at position 2 (on but not starting) and wait one minute, then start the car. If the engine again runs for 30 seconds before cutting off this tells you its is a fuel problem. If the fuel is supplied slowly it fills the carburettor fuel bowls and when the car starts it quickly uses up these local reservoirs of fuel faster than they can be replenished. When you try to restart immediately there is only a tiny amount of fuel and so it used up almost immediately. By leaving the ignition on 2 for while it gives the pump time to fill the carburettor bowls and this takes a while longer to run down when the engine starts. Just before moving on does the car have a choke OK remove the low tension connection to the coil, basically remove any chance of a spark. Put a big old towel around the carb. Now remove the fuel line at the carburettor and put ignition on 2 to engage the starter pump. Listen to pump operation and look at the rate of fuel being pushed from the disconnected fuel pipe. If the flow is slow check on pump and filters.

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I have a 2000 honda civic hard staring


new auto choke thermostat sensor switch needed

Jan 02, 2010 | 2000 Honda Civic

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I have a Yamaha TTR 225 4 stroke that is having issues starting


Carba/f ratio needs adjusting and use of the choke will help keep the idle circuits clean.

Nov 12, 2009 | 2003 Yamaha YZ 250

1 Answer

THE ENGINE RUNS FINE FOR 10 SECONDS THEN KIND OF DIES OUT BUT WILL THEN RUN FINE FOR 10 SECONDS AND THEN DIE OUT


Try replacing the in-line fuel filter, the Air Filter and Spark Plugs. Also make sure that you are using the proper start up procedure. In many cases that means using the highest choke setting until the engine tries to start, then going to the next choke setting and so forth until you get to no choke. It is imperative that you let engine run for at least 5 minutes before use to warm up. This will ensure a longer life and consistent running.

Oct 06, 2009 | Homelite Consumer Products Backpack...

2 Answers

Carb


make sure the air filter is clean if it is then take your carb off and clen out your main jet large brass jet in center of the bottom of the carb if that does not fix it adjust your air screw on side of carb brass flat head screw turn right until tight lightly not to hard just enough till it feels snug then start at one turn left and rev 2-3 times then go a 1/4 turn left at a time till the bike revs and runs well good luck

Jun 28, 2009 | 2002 Yamaha TT-R 250

1 Answer

Yamaha 2002 TTr 250


Hi hoeygatt

Look around your bike near where the throttle cable meets the engine, when you pull the throttle, the cable pulls a quarter circle piece of metal which is connected to a spring, then connected to that should be a screw, that is the idle screw, turn it very slightly, usually clockwise to make the idle higher, and this should sort out the problem.

Please remember to rate this solution as FixYa!

Kind regards
BearWeb

Apr 12, 2009 | 2002 Yamaha TT-R 250

1 Answer

96 cavalier 2.4 starts runs great -chokes


Check the crankshaft position sensor. If the plug is loose or the sensor itself is bad it will cause similar problems

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