Question about 2001 Yamaha XVS 125 Dragster

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My 1998 virago 125 bike will only run with choke on fully , give it any hand trottle it dies,checked fuel filter and tank spotless .carb also had no dirt in it...any suggestions

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Look to see if your main jet in carb is clogged. and if your float and needle arent froze. if you take carb off take pictures of fuel lines and how every thing looks first. you can unclog it with a small wire but is way better just to buy new jets. matirx240@aol.com

Posted on Oct 13, 2010

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1 Answer

Bike ticks over on choke but won't run if a touch


Hi, Gerard and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
http://viragotech.com/newtech/Only%20starts%20idles%20on%20choke%20dies%20when%20you%20give%20it%20gas%20(SOLVED).htm
Yamaha XV535 runs only on idle choke
Yamaha XV 535 DX Virago Service Manual
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2005/LIT-11626-18-21_1000.pdf

Oct 08, 2011 | 1994 Yamaha XV 535 Virago DX

1 Answer

Ok, i recently purchased a DTR 125 R 2000 model with running problems The bike will start with the choke on, then die with the choke off, the fuel/air mixture screw was mashed up so i purchased another...


Sounds like a vacuum leak is leaning out the mixture....check the intake between carb and engine for leaks...another source may be tjhe crankcase seals are leaking.

Mar 31, 2011 | 2000 Yamaha DT 125 R

1 Answer

2001 heritage clssaic starts and idles fine when you put it under power it bogs out after 1/4 trottle pull the choke out and you get to 1/2 trottle before it bogs and if you hold in bog zone it will die...


It sounds like one of two things. One, the jets in the carb may be clogged. The way you're describing it, it sounds like the main jet in the carb is clogged. You're running off the slow speed jet. When you open the choke (enricher) you're adding a bit more fuel and air improving the performance a bit. If it's te carb, it needs to be completely disassembled and soaked in a professional quality carb cleaner and thoroughly gone through to ensure all passageways are clear.

The next problem is the exhaust system. I've seen bikes do this before when changing a camshaft. Remove a stock cam and install a high performance cam and the bike will no longer run. The reason is that the baffles in the exhaust system were so restrictive that the engine could no longer "breathe" with them in there. Removed the baffles and the engine ran fine but was too loud for the owner's liking. We replaced the stock system with a free flowing high performance muffler system and the bike ran great.

Good Luck
Steve

Mar 17, 2011 | 2001 Harley Davidson FLSTC - FLSTCI...

3 Answers

Will not stayed cranked. changed out old fuel, fuel filter, changed oil.


The Virago's have a tendency to clog up the carb. quickly due to sitting for a short amount of time, say a month or 2. Try and run some SEAFOAM in the carb. Remove the fuel line from the tank and force the seafoam into the carb with a turkey baster. Run the carb.s dry as best you can, force the seafoam into the carb. and let it sit for a day or so.Then try and start the bike off the seafoam, it will run and make a lot of smoke. Then hook the tank back up and see if that did the trick. Sometimes it will sometimes not, you may have to pull the carb.'s and clean them by removing the bowls and soaking them in a pan of the seafoam or something similar.

Feb 20, 2011 | 1997 Yamaha XV 535 Virago DX

2 Answers

Yr 2000 thundercat, won't idle unless choke fully on


When you cleaned and balanced what did you do and how? Did you clean out tank? Tank filter? Any petcock debree. If this does not work please get back at me for further info.

Jul 07, 2009 | 1999 Yamaha YZF 600 R thunder cat

1 Answer

2007 yamaha virago won't start - replaced spark plugs and emptied gas tank and filled with new gas. it turns over - it has spark (fire) but won't start. Bike had been garaged for six months with full tank...


it's not that your not gettin gas it's that the gas is not getting thru the carbs to the engine. your bike will probably start w/choke on and then die, your jets are clogged and happens to most bikes that are stored w/gas in the carbs.,,,clean them if you know how or take it to a trusted mech...good luck to you...Tim

Jun 06, 2009 | 2005 Yamaha Xv 250 Virago S

1 Answer

XV1100 virago ...sputtering, dying...NOT FZR!!


1 maybe there is a diaghfram tear at your carb only 1 is funtioning and 1 block engine is running but under power
2.check your fuel line from tank to fuel filter then pump then carb
probally there is a debrie stuck in the pipe line or in your tank

May 11, 2009 | 1990 Yamaha FZR 1000

1 Answer

Yamaha xv535 wont idle off choke


****, squeeze, bang, blow... check filter, fuel and spark... its going to be prob a fuel problem. if the bike hasnt been running all winter run some gumout through it... and get rid of the fuel thats been sitting in the tank. more info would help but it sounds like you got varnish in your carb....

Apr 05, 2009 | 1993 Yamaha XV 535 Virago DX

1 Answer

1998 honda shadow will not start


Hi and welcome to FixYa,

Initially, a few possibilities you may want to check/explore:
  • stale gasoline;
  • clogged fuel filter (inside the tank above the fuel shutoff valve;
  • clogged, bocked, varnished, gummed carbs, jets, air pin holes;
  • stuffed air filter/box;
  • vacuum leak (rubber coupling, manifold side);
  • air leak (airbox base assembly seated/fitted on the carbs.
Basically, a general cleanup of the fuel lines, tank and the carbs. Sitting for some time tends to leave varnish like coating on most parts.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 16, 2008 | 1998 Honda VT 750 C2 Shadow

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