Question about 2005 Yamaha TT-R 125 L

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My 2005 TT-R 125 has sat for a while.....

I can not get my bike to start without spraying some starter fluid, but even then when it uses what was has been sprayed it still will not run at idle.  I cant get it to start up by just trying to use the choke.  I have cleaned the gas line to make sure that there is no build up and still no joy.

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Your carb is gummed up if you let it sit for a while. It is not getting any gas through it is why once the starter fluid runs out it quits. Take the carb of and clean thoroughly. I do me take apart and clean clean clean.

Posted on Mar 08, 2009


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The bike has a very hard time starting cold. The only way to start it cold is to spray starting fluid in the carberator and connect the hose back up and start it. once its warm it starts with no probl

acid dip carb your low end idle circuit is clogged it is the jet with the small hole best carb acid is chem dip 25.00 per gallon wont eat rubber seals etc.

Mar 10, 2013 | 2005 Yamaha TT-R 125 L

1 Answer

Engine dies when i give it gas

These models are typically very lean and respond well to a little richer slowspeed jet. However if the bike has sat up for longer than 3 months try draining the carb and tank a refilling with fresh gas. If this dosent work a proper carb cleaning may be in order. Also ckeck for an air leak at the intake manifold by spraying this area with carb cleaner while the bike is idling steady. If the engine rpm changes you have located a leak. repair as necessary.

Jan 14, 2013 | 2004 Yamaha TT-R 125 L

1 Answer

Take to long to start.. takes almost ten minutes of kick starting... electric starter wont turn over to start bike yamaha ttr 125

The TTR-125 Carburetor's Run Lean by design. Mine had the same issues till I found a post on on Carb and air box Mod. This is a good starting point on gets; 110 and 112.5 main and 17.5 pilot. But you must check spark plug coloring to make sure the jetting is correct. Check spark plug after the bike has been ridden for a wile. I also took out the stock baffle and replaced it with exhaust tip and now it fires up after a few kicks and worms up in a few minutes.

Dec 15, 2010 | 2005 Yamaha TT-R 125 L

1 Answer

Bike will start but will not respond to throttle. It has been sitting for more than a year with old gas in the system.

you will need to drain all of the old gas. remove carb to clean. remove float bowl. remove jets and clean with spray carb cleaner. use a bit of thin copper wire to probe the jets. count the number of turns to close mixture screw and jot the amount down somewhere. remove mixture screw and spring and clean the bore with carb cleaner. spray into float needle hole to flush out gunk through the top. reassemble, reset mixture screw , fill tank with new gas.

Sep 14, 2010 | 2005 Yamaha TT-R 125 L

1 Answer

I just bought my kid a TTR50, its and 09 and looks brand new. It has been running great, until I sprayed it off with a garden hose, now it won't fire. I checked the plug, no spark. Anyone had any issues...

Use starter fluid to spray out the electrical connections to the coil and starter switch, and let dry before reconnecting, or just wait for it to dry out naturally. Next time, be very careful not to spray electrical wiring. If none of this helps, you may have fried the coil. Although these connections should be waterproof, time kills all.

Aug 30, 2010 | 2005 Yamaha TT-R 125 L

1 Answer

What type of oil does a 2005 yamaha ttr 125 L need?

any oil that is safe to use for a wet clutch. I use rotella t oil in my bike. I have a yz125 race bike. Rotella T comes in a white bottle and they sell it at walmart. Its safe for wet clutches, cheap, and the pro's use it. Trust me, I know. Rate my answer!

Jul 17, 2010 | 2005 Yamaha TT-R 125 L

1 Answer

2005 tt r 125 wont idle without choke, fuel

floats out of adjustment remove the bowl check float reset if adjustable or replace

May 09, 2010 | Yamaha TT-R 125 Motorcycles

1 Answer

Hard starting of a yamaha ttr 225 after sitting for several weeks. Could starter plunger in the carb be bad?

I had a similar problem with my TTR 125. I removed the carb, removed the float bowl and gave a a careful clean. I also removed the choke plunger mechanism and gave that a few shots of penetrating lube oil. The choke mechanism works much smoother as a result.
Just those two simple things and my bike fired up right away.

Mar 09, 2009 | 2005 Yamaha TT-R 125 L

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