Question about 2005 Yamaha WR 250 F

1 Answer

No rpms=no power

I am told to shorten the throttle stop in the carb to gain more rpms.And to loop the electrical under the fuel tank?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,567 Answers

Don't mess with the electrical wire placements. Wiring has nothing to do with revs. Shortening the throttle stop simply means removing the slack in the throttle line. This can help revs.

Posted on Mar 13, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Bogs past idle


when you go to acceleration ,there is a power circuit in the carbys that allows for extra fuel to increase the rpms.
it is either a power valve or pump operation. This circuit is not working ( blocked or non-valves not fitted correctly)
if there is no such circuit , there is still a blockage in the main jet and emulsion tube circuits.

Apr 27, 2015 | Tank Motorcycles

1 Answer

Bike runs spits fuel when rpms build


the fuel petcock diaphram might need to be repaled. or gasket that is from gas tank to fuel shutoff valve could be bad.

Dec 27, 2013 | 2005 Hyosung GT 250

1 Answer

Hi, my description is lengthy, but I tried to provide as much detail as possible for troubleshooting. I'm seeking technical input re: a continuing carb issue w/my '96 Magna, which would not turn...


Reserve tube is usually set at a 1 gallon level in the tank, if you only added a gallon to an empty tank,I would fill the tank at least half full, If that doesn't fix the issue then replace the petcock, It's not a carb issue if it runs fine in reserve.

Jun 28, 2011 | 1996 Honda VF 750 C Magna

1 Answer

It stalls every now and then when I close the throttle. no one can give me an answer about this even the dealer.


sounds like fuel mixture adjustment is to rich,if you blip the throttle and rpms drop then rise its to rich,if blip throttle and rpms hang then drop,its to lean,on the under side of carb there are adjustment screws,if they are on backside of carb,between carb and airbox(filter) then its air fuel,to lean mixture turn screw counter clock wise 1/4 turn,if they are between carb and motor then they are fuel air,to lean turn clock wise 1/4 turn.then check.may have to try couple times.carbs may still have plugs installed,they have to be removed first to do this adjustment.

Feb 05, 2011 | Suzuki AN 400 Burgman Motorcycles

1 Answer

The bike will not take throttle, refuses actually, carbs are clean and in sync, Bike idles perfectly, but when any throttle is given, the engine is restricted to 2k rpms. Stock jetting, and a slip on pipe.


i think the fuel filter inside the tank is dirty, or the fuel on the float bowl of the carb is low that when you give gas the fuel in the bowl runs out.

Aug 19, 2010 | 1991 Suzuki GSF 400 Bandit

1 Answer

I recently purchased a 2002 lowrider with only319 miles on it obviously it has sat awhile. It has a hard time idling on initial warm up and when warmed up giving it a little throttle (not under load) it...


The bike may suffer from a combo of the gas going stale in the carb, and may have slightly clogged the small passageways, but if it starts and runs you are halfway there. Use some carb or fuel injection cleaner in the gas tank to help out there. As far as cold start, it may be from a lean condition form the factory, and the coughing and popping are symptomatic of that. If you have a good HD shop nearby, they should be able to change the slow speed up just a bit, to pretty much take care of the issue of coughing, popping and cold start issues. My bike was the same, I bumped the low speed jet up , but still have a cold blooded bike, it takes a while to run properly form cold start, and will pop if driven too soon or if it is cold out until she warms up good. Some advice for cold start, use the choke know as usual, then push in the choke as soon as you can, and use the throttle to keep RPMs up about 1000 using throttle lock to RPMs there. As the motor warms up RPMs will increase on their own and you can adjust the RPMs lower as motor warms using throttle and throttle lock. Use your hand to touch the heads, as the motor warms up you'll feel heat, when she's too hot too touch, she is ready to ride. See you in the wind.

Jun 24, 2010 | 2002 Harley Davidson FXDL Dyna Low Rider

1 Answer

Broken throttle cable


This may be a real hard job. You will have to remove the fuel tank, If your bike has a large air box under the tank you will have to remove it. Now you should be able to see any cables to the carbs and any clips or brackets that hold them in place. You may have to remove the carb's also - reason will be to gain access to the cable ends, they have a ball that fits into a slot on the carb linkage and can be very tight or hard to reach. First things things first, disconnect the battery. Hope this helps you get started.

Jan 02, 2010 | 1996 Triumph Triumph Thunderbird

1 Answer

Bandit idles HIGH when hot Just bought the bike! My bandit 1200S, 1997, runs smoothly when the engine is cool. But at hot temps when the bike warms up, the idle increases to 3000rpms. It doesnt want to...


OK.... firstly change the fuel cap, the tank needs to be vented correctly so pressure will equalise. Normally a rich fuel concentration will cause the engine to die not run high. From what your telling me it sounds like the throttle cables are not adjusted properly, if they are too tight the rpm's will not come back to idle. if this is the case you might be able to twist the throttle the opposite direction to lower the revs at idle. For the excess fuel problem, it could be what you say about the fuel cap, another thing will be the Needle and Seat might need changing or the float levels are not adjusted correctly. Whilst your there fit a good inline fuel filter, it will stop problems in the future.

Nov 12, 2009 | 1997 Suzuki GSF 1200 Bandit S

2 Answers

Runnin rough


ok first steps first. service it change the air filter and plugs remove and clean the fuel filter in the tank and swill the tank out with a bit of fuel,with your tank off check your head bolts are tight they have a habbit of working loose, check your plug caps are secure on the leads, next adjust your throttle and clutch to the correct spec,, then check your chain is tight, if you have to tighten it more than once a month its time to chyange the sprockets and chain completley..next is your clutch slipping at high revs if your bikes done over 20k theres a chance it needs doing after checking that its down to the nearest garage

Aug 13, 2009 | 2000 Suzuki VZ 800 Marauder

Not finding what you are looking for?
2005 Yamaha WR 250 F Logo

Related Topics:

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

D. E. Hev

Level 3 Expert

1059 Answers

mikeuk

Level 2 Expert

61 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...