Question about 1996 Honda XR 600 R

1 Answer

Carb and valve adjustment

I adjusted the valves, correctly I hope, finally got it started. Adjusted the idle up to keep it running but now gas is pouring out of the overflow tube from the carb. What did I mess up?



Posted by on

  • baumanconstr Feb 17, 2009

    Thanks for responding!

    I actually ran out of time and haven't tried your suggestion yet.

    I'll let you know maybe this weekend.

    Thanks again



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 46 Answers

Dear Craig,
Presuming that the carb is clean !
It seems that you have either set the float level incorrectly, or allowed the needle to become jammed. The float bowl should a little less than 3/4 full of fuel when the fuel is shut off by the needle and seat.
Check that the needle and seat are working correctly by blowing in the fuel pipe, and then closing the needle by hand. Check that the flow is stopped when the needle is fully raised.
The needle and seat do need to replaced from time to time, but generally last well.
If the needle and seat work, then look at the float level.
Further check to see that the floats are not filling with fuel. If this is the case, then the floats will have to be replaced as most repairs are only temporary.
When the floats are fuel logged the needle will not be raised and fuel flow to the carb will be continuous.

Posted on Feb 14, 2009

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

How do I time a 185 Yamaha exciter 1981?

Hi, Lou your carb is the issue and may need to use Berryman Chem Dip to remove hidden contamination and the usual suspects are:
1. Idle speed improperly adjusted.
2. Air fuel mixture screws not properly adjusted.
3. Inlet system air leak.
4. Leaking accelerator pump.
5. Loose low-speed jet.
6. Plugged low-speed jet.
7. Contaminated or plugged low-speed circuit.
8. Enrichner valve/choke not seated or leaking.
9. Multi carburetors out of sync and need to be balanced.
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.
Carb Cleaning Pinesol vs Berryman Chem Dip
Yamaha Sr185 1981 Usa parts lists

Aug 12, 2016 | Yamaha Motorcycles

1 Answer

Just refitted twin su carbs to my triumph 13/60, carbs have been unset, have refitted them but cant start the car. plugs and points replaced and adjusted

Must narrow it down. Try some starting fluid, if it starts on that you know it's a fuel problem, if it doesn't then it's either a spark issue or something went wrong with the head installation and/or valve adjustment.

Mar 01, 2015 | Triumph Motorcycles

1 Answer

Won't start

Check the fuel level in the float chambers of the carbs, it could be too low! Readjust the float to obtain correct level. Blow out the primary and main jets with compressed air.
Hope you adjusted the air screw mixture at the right temperature of the engine i.e. you need to warm it up and than adjust also check the valve clearance of the engine.
Hope this helps

Aug 06, 2014 | Suzuki GSX 750 F (Katana Motorcycles

2 Answers

Cleaned carbs on 1989 Radian 600, now idles at 6-8K RPM. Please help.

Please check the following:
- Throttle control cable adjustment.
- Foreign matter in throttle plate.
- Fuel line clogged.
- Water contamination in fuel.
- Vacuum leaks in the intake manifold or at the carburetor.
- Carburetor base gasket or seal.
- Air/ fuel mixture adjustment.
- PCV valve.
- Valve clearance.

May 08, 2014 | 1989 Yamaha YX 600 Radian

1 Answer

Yamaha serow


Jun 28, 2013 | Motorcycles

1 Answer

Runs rich, fouls plugs, doesn't idle properly...with or without enricher and idle adjust. Has 80,000km, is an '05. Was quiting and shooting gas out the carb. Been an off and on problem from the...

Hi Spinner3507, and the usual suspects are:
1. Idle speed improperly adjusted.
2. Intake manifold air leak.
3. Loose low speed jet.
4. Contaminated or plugged low speed system.
5. Enrichner valve not seated or leaking.
6. Leaking accelerator pump.
Good luck and have nice day.

Aug 28, 2011 | 2005 Harley Davidson FLSTN- FLSTNI Softail...

1 Answer

2002 YZ250F wont start

Assuming all other things are working properly(carb and ignition), check the valve clearances. Specifically look for any valve that doesn't have any clearance. This is very common, especially with bikes that have alot of time on them. If so, have the valve(s) adjusted, but keep an eye on any that had closed up. If they close up again in the near future, you'll have to have the valve replaced.

When the valves do this, they are held slightly open all the time and let your compression bleed off, causing it to be near impossible to start. If the bike does start, it will be much easier to start again once it's warmed up. But back to the same when it cools off.

*Help me out. Rate me!

May 09, 2010 | 2003 Yamaha YZ 250 F

1 Answer

04 crf450.hard start when cold(25deg).kick for 10min.once it

1. First thing is when was the last time you had your valves adjusted
2. On cold start up twist about 15 times on your throttle, as you do that the accelerator pump in carb will shot gas in cylinder, I have a 2003 yx426 & 2005 yz450 have to do to both of them when cold out to get started

Feb 07, 2010 | 2005 Honda CRF 450 R

2 Answers

2006 Suzuki Boulevard C50 engine dies

Even though you probably don't have that many miles on the bike, or if you do have a lot riding time on it, it sounds to me like you need a valve adjustment. That's a high reving bike for that engine that works pretty hard so you might have 1 - 3 loose valves.

Dec 07, 2009 | 2005 Suzuki Boulevard C50

Not finding what you are looking for?
1996 Honda XR 600 R Logo

503 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4477 Answers


Level 3 Expert

61037 Answers

Gino Cussen
Gino Cussen

Level 2 Expert

216 Answers

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

Answer questions

Manuals & User Guides