2005 Yamaha Ybr 125 Logo

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Posted on Dec 22, 2017
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I've pulled a Yamaha GT 100 out of the barn after a few years and the bike runs great except for this issue. When I gear down, the throttle sticks in a revved position. The kill switch will not kill the bike so I can only stop it by holding brakes and letting out on clutch. Do I need to put oil in the cable?

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Paula Hamilton

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  • Yamaha Master 894 Answers
  • Posted on Dec 22, 2017
Paula Hamilton
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Joined: Mar 13, 2012
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Hi,it would be best to undo the throttle cable where it gose into the carb then turn the throttle grip and see if the cable turns freely at the throttle grip,then pull it from the end that gose into the carb,if it runs freely then the carb needs cleaning,if it dose not run freely just replace it,hope this was some help.

5 Related Answers

Anonymous

  • 674 Answers
  • Posted on Nov 17, 2008

SOURCE: still got problems with sr125

i would replace your cable and you need to check your valve clearance.

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Anonymous

  • 137 Answers
  • Posted on Jan 10, 2009

SOURCE: '95 Yamaha YZ 125 clutch - stays in gear when clutch is pulled in

hey dude,, just thought id come in and give u some tips or 3,, i take it when u pull clutch lever in, and try and change gear it feels like your foot will snap b4 it goes in gear,, if that makes sense,, firstly mate,is to make sure the clutch cable slides freely ,easest way is to take cable off and just grab 1 end and make sure it isnt sticky,, if so dip one end of the cable in a bit of old oil ,,whilst holdin the other end ,pull and push the cable inner, this will **** up a bit of lubricant inside the cable ,, keep doin this each end till free to move, ,,next step if the cables ok,,, and may need help if u dont no,drain the oil out,,and as u r sat on the bike is to remove the clutch casing on the right hand side of the moter,where the bottom end of the cable goes,remove the casing being carefull not damage the gasket,,then u will see clutch plates and friction plates housed,, undo the 7 or 8 spring loaded bolts carefully take the first fibre plate out then metal friction plate then another fibre plate and so on,, wen u take the 1st plate out place that on the bench ,stacking each plate on top of one another, cause they have to go back in as they came out,,wen out,,u need a piece of wet n dry paper ,or fine emery,,and just wipe round both sides of the fibre plates taking the shine off them,as u put them back in,, put casing back on with a decent gasket,, oil back in cable on, make sure cable has no free play on the lever so wen u r about to pull lever in it bite straight away,, start her up, warm it up and try it,,any probs still il eat my shoe,, take care m8

Anonymous

  • 490 Answers
  • Posted on Apr 15, 2009

SOURCE: '95 Yamaha YZ 125 clutch - stays in gear when clutch is pulled in

the plates will stick to each other because of oil
check the clutch lever at the motor and make sure it is moving the arm that pushes the pressure plate and make sure it is moving

Anonymous

  • 79 Answers
  • Posted on Sep 10, 2009

SOURCE: throttle sticks at full

Sounds like the return spring got squashed. Take the top off of the carb, free up the spring and, if it isn't broken, reassemble carefully.
Try it afterwards, if it still sticks it could be the cable.

Anonymous

  • 21 Answers
  • Posted on Oct 19, 2009

SOURCE: When I rev the throttle it kills the bike. But

You carburator needs cleaning, or needs to be adjusted. Do you have fresh gas in the tank? Did you mess with the jets, or any adjustments on the carb? You're just not getting enough gas when you open the throtle, and having the Choke on will give you more gas.

Testimonial: "Sounds like that may be the problem. thanks"

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Related Questions:

0helpful
2answers

When I start up my bike I pull in the clutch lever put it into gear the bike shuts off and lunges forward.

Clutch problem - please help - Dirt Rider Magazine

forum.dirtrider.com/discussion/6668452/clutch-problem-please.../p1

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I start the bike in neutral with the clutch pulled in, then I shift into first and it will kill ...bike, if you put the bike in gear and try to roll it (even with the clutch lever pulled ...Started it back up, gave it enough throttle to keep it from stalling, put it in 1st, ... I continue to change the oil in my clutch but almost immediately it turns white.

Re:Always shuts off putting it in first!! - Road Star Forum ...

roadstarclinic.com > Forum List > Technical Corner > Maintenance

Jun 17, 2014 - 10 posts - ‎8 authors
My 99 Roadstar has the habit of always shutting off when I knock it into first ... pull in the clutch and put it in first gear the bike lunges forward and shuts off. ... Hold thefront brake ALWAYS when shifting a cold bike into first. ... What I do on cold starts is to select first gear with the motor off, pull the clutch in and ...

How To: Fix 5 Common Bike Issues ' RideApart

https://rideapart.com/articles/fix-5-common-bike-issues
Jul 21, 2014 - It's easy to assume the worst when your bike isn't opperating perfectly, ...Where's my ignition! ... First, ensure the battery is good and that the engine turns over.... Try starting with the kickstand up, clutch in, and bike in neutral and see if the ...goes away most the time when the bike is put into gear or revved.

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0helpful
1answer

Stall in rain

probably crappy Ignition wires
0helpful
1answer

Got a yamaha bruin 350 runs great wont take throttle when in gear.

Will the bike rev in neutral? If so, but not when in gear it sounds like the crotch might be slipping. GOOD LUKE.
Jan 20, 2013 • Motorcycles
0helpful
1answer

When i put my 1987 Yamaha Virago in gear, it dies

Yamaha motorcycles of this vintage often have issues with their kickstand switch. This switch can be disabled by clipping the two wires that go into the switch and wiring them together--the kickstand switch is normally closed (letting current flow) when the stand is up; the switch is open when the kickstand is down.
This is more afield than your electrical concerns, but if the clutch plates have bonded together, the bike will stall when you put the bike into gear. The bike will start and idle fine, but basically, you don't have a working clutch, so the bike will stall out when you dump it into gear while at a standstill. You can test for this by starting the bike and having someone push the bike to get up to a little speed, then trying to shift into 2nd gear. If the bike lurches forward before stalling or keeps running, you have a clutch, not an electrical issue.
Folks sometimes get lucky, and working the clutch plates a few times will free up the sticking plates. I have had this problem with a mid-1970s vintage Honda that I don't ride very often. Eventually, the clutch plates free up and the bike is good to ride again.
Good luck!
1helpful
1answer

I have a nid 70s enduro 100 it runs great but whaen i put it in gear it jumps a bit then dies it starts in gear as long as the clutch is not engaged im a bit lost ps i do know how to ride so its...

It sounds like your clutches are stuck.If the bike has been sitting for awhile the clutch plates will stick together. Sometimes they will unstick.1st I would change the oil. Then i would place the front tire up against a solid wall start the bike pull in clutch put in gear ,repeat a few times.If this does not unstick the clutch you might have to replace your fiber clutch plates.Hope these helps
D.
0helpful
1answer

Quad won't start

I Have Started lots of Motorcycles that peopel have even thrown A way.
The most problem is with the carb or electric.
This what I have been starting bikes that A pigs to start for my last 28 years of Motorcycles.
Even with kick start bikes can build compreshion and kick back.
This can realy tire you out too.

1st wiggel all of the wires check for burn marks.

2nd Fuse box check for correct ones have been put in.

3rd Spark Plugs just put in new ones low cost cost for brand new .Check to see if You have Spark
if you don't Get A tester And read the service papers .

4th most of the fuel is years old trust me you need to mix 25/50 of Avation with super TT olny with yamaha RD 350 .You have penzoil for two strokes stick to olny one .

5th Fuel line pull the whole lot out put a air hose down blow it out .Clean fuel filter down the line
Clean the Air Box

Warning some bikes dont like Engine start Some with YPVS..
Playing with the enging iddl switch is not realy recemeded if the Bikes Not Runing !.
The Center stand could be down some bikes don't go with the center stand Down ( Its a safty Thing )


Turn the fuel on wile clutch out this will un block a air lock in the fuel line
6th Look for the Steepest hill you can find ! Stick it in top gear And wile you Speed up Like Really Fast STAND UP ! And push your weight on the foot pegs .And Repet this you should be clocer in starting to 3rd Gear if not 2nd .Pull the clutch in If you Its just Getting The fuel in .
If theres fuel in your Glass filter your on the way.
The twist grip Throttle A boult Half OPEN And when its Splutting coffing Give it the berrys.Chears From Rd 350 (R) with 77 owner
0helpful
1answer

Will not idle down when shifting.

beside the carb it a throttle set knob that sets the idle ..u got to turn it till the bike idles ..try that u cant miss it its there beside the carbs
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