Question about 2003 Honda CRF 150 F

2 Answers

2003 Honda CRF150F problems

I recently let a friend ride my 03 honda crf150f while I was gone, he said the bike just quit on him. When I got back I changed the spark plug and filled it up with gas, it wasn't fresh but has probably been in the can for a month or two. Now when I hit half throttle all the way to full throttle it sputters (for lack of a better description). Could it just be the gas or do you think there is a bigger problem? Would 101 octane damage the motor if I run it in this bike? Also do you have any suggestions for exhaust and aftermarket parts to gain a few more horses for a reasonable price?

Thanks,
Clif Tinkham

Posted by on

2 Answers

  • 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

ALWAYS have a fire extinguisher on hand when working on carburetors.
Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb.
Put the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road. Pay special attention to the noted area. A “very helpful” rating for this answer? Thanks!

2003 Honda CRF150F problems - 6a90880.gif

Posted on Jun 26, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 207 Answers

The reason why you probally fouled a plug because 03,04 hondas had bad valves you need to check your vavle clerance my sponsered rider rode a honda that we always had to replace the plugs in at 30 dollars a peice his was a 250f but same differance u need to check your valves and adjust your air screw the brass flat screw in the under the carb in the front after you drain the bad gas out of it..... good luckl

Posted on Jun 27, 2009

  • thomas foster
    thomas foster Jun 27, 2009

    no 101 octane would not hurt it at all they tell you to run at least 93oct as far as power goes playing with that air screw will get it dialed in exhuast is always a good first step but you need to get your problem sta8end out 1st

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How to adjust idle 2005 Honda 150 dirt bike


Hi, Anonymous you need to make sure you have no intake leaks by spraying some Brake Kleen, Contact Cleaner, Starting Fluid etc. around the intake manifold and seals, if the RPM's go up or down significantly then you have a leak that needs to be fixed before you can continue with the carburetor adjustment.
The engine should be at operating temperature with the enrichener off to set the idle between 950-1050 rpm. Turn the idle skrew clockwise to increase the idle speed and counterclockwise to decrease the idle speed. If you have access to your air fuel mixture skrew you may turn it as well, if not there is a video below on how to gain access, make sure you start with clean or new spark plugs. Gently turn the air fuel mixture skrew clockwise until it starts to bottom out "STOP" do not over tighten as it will damage the taper on the end, now back the skrew out 1-1/2 full turns to establish a starting point start the engine and check the idle rpm's and turn the idle skrew accordingly for 950-1050 rpm if necessary, turn the air fuel mixture skrew 1/4 turn at a time and let the engine settle for about 10 seconds, turn the skrew clockwise for a leaner mixture and counterclockwise for a richer mixture, you are seeking the highest rpm your air fuel mixture skrew can acquire without going past 3 full turns from bottom then resetting the idle skrew back down to 950-1050 rpm If you can not detect any rpm change and can not stall the engine by turning the air-fuel mixture skrew all the way in then your pilot/low-speed jet is too big and needs to be replaced with the next size smaller. Final adjustment should be made with a clean air filter mounted to the carburetor.
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.
How to Adjust Idle On Dirt Bike Tips and Tricks 1
How to tune CRF150F dirt bike other basics
CRF150F service manual repair 2003 2013 CRF150 Download Manuals Technical $10
http://www.partsfish.com/page/oem-parts-for-honda
Honda 2004 CRF150F Owner Manual

May 29, 2014 | 2005 Honda CRF 150 F

1 Answer

My front shocks on 2006 honda crf are stuck down and I can't pull them back out


Hi, Anonymous for more information about your question and valuable "FREE" downloads that you will need for viewing and printing please click on the blue links below. Good luck and have a wonderful day.
help front forks stuck
fork stuck
CRF150F service manual repair 2003 2013 CRF150 Download Manuals Technical $10
http://www.partsfish.com/page/oem-parts-for-honda
Honda CRF150F Owner Manual

May 11, 2014 | 2006 Honda CRF 150 F

1 Answer

2004 Honda CRF 150 F air/fuel mixture screw location


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
2004 Honda CRF 150 air fuel mixture screw location Google Search
How to tune CRF150F dirt bike other basics
CRF150F service manual repair 2003 2013 CRF150 Download Manuals Technical $10
http://www.partsfish.com/page/oem-parts-for-honda
Honda 2004 CRF150F Owner Manual

Apr 27, 2014 | 2004 Honda CRF 150 F

1 Answer

2004 Honda CRF 150 F the kick start won't kick over


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Kick starter stuck
Jammed kick starter on crf150r
CRF150F service manual repair 2003 2013 CRF150 Download Manuals Technical $10
http://www.partsfish.com/page/oem-parts-for-honda
Honda 2004 CRF150F Owner Manual

Apr 22, 2014 | 2004 Honda CRF 150 F

1 Answer

2003 CRF150f that I can't get started.


As long as you have spark and compression i would go back to the carb and pull the low speed jet out make sure it is clear and also the passage way its in this is the most common problem if a bike sits for some time the gas tends to gel and the tiny jet will easily clog up make sure its clear or the bike just wot run correctly at all.

Aug 28, 2012 | Honda Motorcycles

1 Answer

How to start a honda crf150f in cold weather


The way I start any of my bikes in cold weather is turn on the choke and once its turned on and run for 1 minute or so turn it off and warm your bike up. For the first few mins of riding don't go too extreme, since the cold air can cool your bike down quickly.

Jan 14, 2012 | 2004 Honda CRF 150 F

2 Answers

How to remove rear wheel of 2006 honda crf150f


well i would say your very brave,,,but how will you balance this new tyer?????or would you be happy to have the bike doing bunny hops down the road???
for what it costs is it realy worth the efort doing it yourself?

Mar 27, 2010 | 2005 Honda CRF 150 F

1 Answer

Camshaft timing setting


wat u really need is a clymer manual for that ride-online or a bookstore near u

Apr 08, 2009 | 2003 Honda CRF 150 F

Not finding what you are looking for?
2003 Honda CRF 150 F Logo

1,523 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75817 Answers

Mike

Level 3 Expert

4336 Answers

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

Answer questions

Manuals & User Guides

Loading...