Question about 2008 Yamaha Alba

1 Answer

Carb issue I am having trouble with my Yamaha alba carburators. I just cleaned them, set the fuel level to about 3MM below the gasket surface. I have syncronized them so they are all right together. They all read 8 inches. It idles great, but when I snap the throttle, it will stumble, and if I really open it the engine will stall. I noticed quite a bit of gasoline being blown backwards from the carbs. Is this normal. I have seen this with 2 cycle engines, but don't know if it is normal for a 4 cycle. I have also set the points and ignition timing. I did set the fuel level consideralby higher then the manual said. It said to set the float about 1 inch, and I set them about .675 or something like that, but what I was after was the fuel level in the bowl. It acts like a lean situation, so I raised the metering rods two notches. Could I actually be causing a flooding situation, or is it still to lean? Oh, I did a compression check, all were right around 135psi. Any help will be greatly appreciated. I bought this bike 3 weeks ago and haven't had a chance to ride it yet.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,336 Answers

Are you running the stock airbox??? stock jetting? i dont think those stock needles were adjustable. (i could be wrong on a 79) so they may be aftermarket needles. how many turns out do you have the air/fuel screws? how does it run down the road? does it run better on the high end or low or just bad all over? or can you even ride it?

Posted on Nov 10, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Carburator leaking gas out of small hole in bottom of bowl


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Carburetor Carb Leaking Gas How to Fix Repair it Motorcycle Honda DIY...
Carburetor is leaking gas out of overflow tube need help
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Dec 21, 2013 | 2003 Yamaha YZ 125

1 Answer

Fuel leak 2007 650 vstar


Hi, Michael and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Vstar 650 leaking fuel again
Yamaha Star Carburator Cleaning
98 00 Yamaha XV650 Star Service Manual XVS650 Moto Data Project
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf

Jul 10, 2012 | 2007 Yamaha V Star Classic

1 Answer

TTR 125 carburetor leaks out of the overflow tube


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
TTR125 dirtbike leaking gas from carburator overflow tube AR15 COM
Carburetor Carb Leaking Gas How to Fix Repair it Motorcycle Honda DIY...
http://www.yamaha-motor.com/assets/service/manuals/2007/LIT-11626-20-01_ttr125all_1961.pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-tt-owners-manuals

Jun 14, 2012 | Yamaha TTR125 Motorcycles

1 Answer

I have a 1986 Yamaha MaximX 700, i have cleaned the carbs with carb cleaner and seafoam, but when i start it, the only way to keep it running is having the choke all the way on and twisting the throttle...


Hi, Caseytkerns and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
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.
How to Clean Motorcycle Carburetor the RIGHT way Evan Fell Motorcycle Works
How to clean motorcycle carburetors
Yamaha XJ700N Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Aug 11, 2011 | 1986 Yamaha XJ 700 X Maxim

1 Answer

2008 Yamaha venture motorcycle carbs were cleaned by a yamaha shop 2 months ago. I have the same symptoms again (will only run on full choke and dies when throttle is opened). I can't believe that...


Hi, Scgreg and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting ***** set too low.
8. Air/fuel mixture ***** set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
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.
Re Bike will not idle with out choke Road Star Forum Yamaha Road Star
2004 Vstar idle only on full choke problem
http://www.yamahaventure.nl/pdf/servicemanualxvz13tf.pdf
OEM parts for Yamaha
http://www.yamahaventure.nl/pdf/ownersmanualxvz13tf.pdf

May 10, 2011 | 2008 Yamaha Royal Star Venture

1 Answer

I have a yamaha 650 v-star classic won't stay running with choke in.


Hi, C60stillions and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
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.
2004 Vstar idle only on full choke problem
Yamaha Star Carburator Cleaning
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf

Mar 31, 2011 | 2003 Yamaha V Star Classic

1 Answer

Leaks gas from the carburator.


Hi, Morgan_honda and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
2003 YZ125 Carb Overflow Hose Is Leaking Yamaha 2 Stroke
Oakys Garage How to clean overflowing Carb Carburetor Part 1
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jun 19, 2010 | 2003 Yamaha YZ 125

2 Answers

Strange thigs about YAMAHA TW 125


Hi
I have been working on my carb today,the pipe from the bottom of the carb should just run down by the bottom of the swinging arm,there should be another pipe from the pipe on the left side of the carb just above the fuel intake which also runs down to the swinging arm and connect to nothing.
Cheers

May 30, 2009 | 2001 Yamaha TW 125

1 Answer

How do i begin adjusting the carbs?


1st-clean air filter and oil,fresh plugs,good fuel,valves adjusted correctly,check for tears or cracks in intake boots,fire in all cylininders;minimum compression & w/in10% of each other in all cylinders, and no exhaust gasket leaks. once these components are w/in specs. and operable the carburators can be adjusted, as long as they are internally clean and operating as designed.1st- set high idle, then set idle rpm, now synchronize vacuum on carburator set,now readjust idle rpm.

Feb 19, 2009 | 1980 Yamaha XS 400

2 Answers

CARB PROBLEM


set the fuel level to about 3MM below the gasket surface. I have syncronized them so they are all right together. They all read 8 inches. It idles great but when I snap the throttle it will stumble and if I really open it the engine will stall. I noticed quite a bit of gasoline being blown backwards from the carbs. Is this normal. I have seen this with 2 cycle engines, but don't know if it is normal for a 4 cycle. I have also set the points and ignition timing. I did set the fuel level consideralby higher then the manual said. It said to set the float about 1 inch, and I set them about .675 or something like that, but what I was after was the fuel level in the bowl. It acts like a lean situation, so I raised the metering rods two notches. Could I actually be causing a flooding situation, or is it still to lean? Oh, I did a compression check, all were right around 135psi. ,you need to set the float level to the factory specifications.if i understand your post you have increased the fuel level height in the bowl by 3/8 of an inch and raised the needles also.the only possible result of this is too much fuel.,,,

Nov 10, 2008 | 2006 Beta RR 250

Not finding what you are looking for?
2008 Yamaha Alba Logo

289 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...