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1982 yamaha xt 200 carb air fuel fine -spark and plug good- battery new-barely runs then dies

Will start but acts like firing every other time

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Posted on Jan 02, 2017

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SOURCE: yamaha 125 grizzly starts and idles when choked but dies when acc

Take the carburetor apart again, remove the main and idle jets and idle mix screw, plus the float and needle valve. The main jet holds an 'emulsion tube' in--look inside where the slide valve moves, you should see a short brass tube projecting out of the bottom. Carefully push down on that tube with a plastic rod or wooden dowel, it should drop out the hole where the main jet was. Chances are that the tube is dirty and needs to be cleaned--look carefully at the series of small holes drilled into the sides of the tube. These small holes deliver air which is mixed into the fuel passed through the main jet. That air comes from a small hole just inside the intake side of the carburetor. The long needle that sticks out of the slide bottom controls low to mid-range speed fuel-mixture. Check that the 'C' clip on the top end of the needle is in the center groove and that the retainer spring is pressed down the 'C' clip. Now soak the whole carburetor with spray cleaner, then blow out all passages with compressed air. Don't soak the rubber-tipped needle valve from under the float. On reassembly, set the idle mix screw 1-1/2 to 2 turns CCW from CW stop. Adjust for best idle after you get it running and warmed up. I hope this long winded explanation helps!

Posted on Aug 14, 2009

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SOURCE: hard starting, dies when throttle opened quickly.

Sounds like a kill switch is going bad or ignition wire getting grounded along the frame or elsewhere. A bad ignition switch can do the same thing. Check the side stand kill switch if your bike has one. Check all electrical connectors. A loose or dirty connection can screw up the works.

Please rate this solution. Thanks allarismith!

Posted on Apr 02, 2009

  • 5 Answers

SOURCE: 2001 Yamaha Banshee that won't stay running

If your jetting is too rich it will be extremely hard to kick start it and will most likely flood it from kicking.First thing i would do is pull the top of the carbs off (cable,slides and needles) and see which clip they're set at. If they are set stock which would be middle clip then lower the needle one clip. This will lean the mix out and should start up easier with no problems,The idle issue is most likely just off.If your fiance still has the TORS on it then on top of the carbs he will see 2 dime size and screws and wires as soon as he takes his seat off.While running he can turn each dime size screw in or out to adjust the idle. If it has a TORS elimator kit on it then he won't have all the junk on top of the carbs and it will be just a cable and round cap screwed directly on top of the carbs and the idle screws will be on the side of each carb (brass color screws with nuts to tighten) same or out to adjust the idle where needed.Hope this helps.


Posted on Jun 08, 2009

  • 284 Answers

SOURCE: 4.5hp Sears/Tecumseh motor starts and dies in 5 - 10 seconds.

metal or plasic float?

Posted on Jun 21, 2009

  • 1 Answer


If you have a primer bulb and the motor "recovers" after a near stall with a pump of the bulb, then you have to replace your fuel pump. Johnsons do have this problem often. Otherwise it could be the high speed jets although it sounds like you checked the carb good. Also if you have a primer bulb, Replace everything from the tank to the engine. Costs about $14 at Wal Mart, $55 at a boat place.

Posted on Jul 07, 2009

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Yamaha xt600e 2002 & won't start Am getting spark and fuel. It turns over Recently clean the carb and put the mixture screw 2 turns out. Changed the air oil/filter Battery works good Anything else ask

Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to the carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery you need 12.5 volts or better and be able to pass a load test if necessary.
11. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
For more information about your issue and valuable "FREE" stuff that you will need please click on the blue links below. Good luck and have a wonderful day.
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Feb 26, 2017 | 2002 Yamaha XT 600 E

1 Answer

Lawn mower will not start,but turns do I find a fix?

Remove air filter and pour a small amount of gas directly into the carb. Try syarting. If it runs then dies off you either need a carb rebuild or you have no fuel getting to the carb. Please be careful as if it backfires the fuel can catch fire. It only takes a very small amount...a teaspoon or so for this test.

Aug 01, 2016 | Craftsman Garden

1 Answer

My yahama maxim 650 wont full start running but it sounds like it wants too

Hey Nick, unfortunately it could be several things. As Tom Diffin mentioned carb gummed up or even bad fuel from sitting all winter. If your positive the spark plug is firing (pull plug, connect to plug wire, place within a couple mm of a metal bolt, CAUTION: hold with insulated pliers so you don't get shocked, bump starter and watch for a spark) then try a very small squirt of fuel (starting fluid would be great) into the park plug hole and replace the plug. Try to start if the engine fires and then dies you have narrowed it down to carb, fuel or timing. FYI get a motorcycle repair or operators manual that describes how to winterize your bike for long storage (check library, you can read for free and make a photo copy of a page cheap). Keep us updated and good luck.

Apr 18, 2014 | 1982 Yamaha XJ 650

1 Answer

Fuel system has been flushed and prooved that that isnt my problem as to why it wont start , could you possibly tell me any other reasons it wont start ? batterys good , got new spark plug , loads of fuel...

Remove the air filter and clean or replace it. Get a can of spray starter fluid and spray into the carb before mounting the filter. Chances are the new spark plug is wet from gas.

Sep 03, 2010 | 2007 Yamaha XT 125 R

1 Answer

I have a yamaha xt 125 r and every time i am flat out it dies

Hi, Broozer123 and the usual suspects are:
1. Inlet system air leak.
2. Enrichener valve not seated or leaking.
3. Damaged or restricted fuel tank vent system.
4. Restricted fuel supply tract.
5. Dirty or damaged air cleaner element.
6. Plugged bowl vent or overflow.
7. Worn or damaged needle or needle jet.
8. Vacuum piston assembly malfunction.
9. Loose or plugged main jets or passages.
10. Improper float level.
11. Accelerator pumps inoperative.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Jul 21, 2010 | 2005 Yamaha XT 125 R

2 Answers

1982 yamha maxim 650 turns over but wont start battery is charged, turns over fine just wont fire up

you need to do basic diagnoses - 1 compression test,should be better than 130 lb and if in good order around 170 and all cyclinders within 14lb. 2 - check and make sure you have spark at all 4 spark plugs. 3- check and make sure you have fuel in carbies by undoing drain screw in each bowl, if above 3 all ok you probably have stale fuel and will need to remove carbs and clean out jets. this model also suffers from worn butterfly shaft through carbs which creates air leak and the manifolds to the head also leak and **** air.

Jul 20, 2010 | 1981 Yamaha XJ 650

1 Answer

Yamaha xt 125r wont start up

hello, check and see if plug is firing a blue color, if not you may need a stator-pickup coil, i have a 2000 warrior, it is firing, orange and white color, stator neede to be replaced, pickup coil was going out, also check ign coil, these have a problem with getting weak after a while. most likely it is your stator pickup coil, no blue fire from plug, no running the motor. my stator pickup coil was going out. no blue fire from plug, i was told by a yamaha mechanic, no blue fire from plug it will not run, has to be blue, not orange or white looking fire.make sure carb is clean and all jets inside are clean, and air passage ways

Feb 22, 2010 | 2005 Yamaha XT 125 R

1 Answer

Fuel Problem

If you have 2 carbs that work on another unit but not this one then that narrows down the fuel problem to either an intake/ vacuum leak or bad fuel in the tank.
The compression sounds a tad high which could indicate valve timing ( exhaust opening late or not long enough)
On the ignition side you could have a bad CDI , weak pulser coil or sheared flywheel key.
I believe I would lean toward suspecting the ignition. I had a Honda that gave me fits acting like a lean issue. I was in that carb 25 times if I was in it once. Same thing, idled fine but died on acceleration. It was the CDI. Put a spark tester inline with your spark plug and see if the unit dies due to lack of spark.

Dec 29, 2009 | 2003 Yamaha WR 250 F

1 Answer

Bike only fires once

Okay, let's have a look at it. Say Ahaaa.
The probable cause of the problem is not the spark. Get a fresh set of Stock NGK spark plugs, ground the plus to the engine, and check each cylinder for spark as the starter button is pressed for 3 seconds or so. I will wager that the spark is present.

The likely problem is the fresh gas was put into a very rusty gas tank. Bits of rust now inhabit your carb and are having fun plugging up the carb. Look at the gas valve. With a little luck there is a small bowl behind the valve. Remove it and tell me what you see in the bowl.

Apr 11, 2009 | 1982 Yamaha XS 400 SE

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