Question about 1998 Yamaha V Star Custom

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1998 Yamaha 650 V star petcock valve

1998 Yamaha 650 V star what are the potitions for open and reserve for the fuel petcock valve

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  • Yamaha Master
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Hi, Beau_tie_man fuel valve long part of lever positions are as follows:
1. ON 6 o'clock position.
2. OFF 9 o'clock position.
3. RESERVE 12 o'clock position.
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.
Proper PETCOCK position when not in use Yamaha Star Forum
Motorcycle Message Board Motorcycle USA
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
https://dd5394a0b8ca8e97ba29-abf76f3d91a2125517d6c7c409f095c7.ssl.cf1.rackcdn.com/content/common/manuals/1999/LIT-11626-12-30_126.pdf

Posted on Jun 16, 2016

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Posted on Jan 02, 2017

tellme2
  • 137 Answers

SOURCE: Fuel petcock positions on my Yamaha XJ 600 Diversion S

hi jamie,, as your sat on the bike ,, push the tap down ,the fuel is on,, pull the tap up thats reserve,,turn the 3 quarters round thatl be prime if u have it,, if u do that is purely 4 morning starts,,
u must put tap to on when the bike starts,,if u look carefully mate on the edge of the tank,, there is a arrow head stamped in 2 it,,

Posted on Dec 27, 2008

  • 1 Answer

SOURCE: valve clerance for yamaha xj 650,what is the clerance of exhuse and intake?

xj650(uk) and xj650j
inlet 0.16 - 0.20mm
exhaust 0.16 - 0.20

all other models
inlet 0.11 - 0.15mm
exhaust 0.16 - 0.20mm
set when cold

Posted on Feb 01, 2009

  • 8 Answers

SOURCE: lost my manual

0.003 - 0.005 in. intake
0.005 - 0.007 in. exhaust

yamaha v-star 650....

Posted on Mar 24, 2009

  • 8 Answers

SOURCE: 1985 Yamaha xj700 Maxim- Carb. fuel lines

yes, the breather line hooks to the petcock on the line facing the back, the fuel line hooks to the larger one. the line from the breather is actually a vacume line that turns on the fuel, without it you will not get fuel out of the petcock unless it is in the prime position.

Posted on Jul 04, 2009

OneRide
  • 379 Answers

SOURCE: HD 1979 fatboy fuel petcock valve leaking

Replace the petcock. The rubber diaphragm is ruptured. I'd also bet your fuel mileage dropped cause the ruptured diaphragm is allowing raw fuel to be sucked into the intake manifold.

Posted on Jul 23, 2009

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My yamaha v-star classic 650 wiil not start after i stop riding when it sit for a few hours. it turns over but will not crank


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
11. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
19. Check for engine trouble codes.
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.
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No gas in the float bowl of carburetor


Hi, Anonymous always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
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.
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1 Answer

No gas in the float bowl of the carburetor.


Hi, Anonymous always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
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.
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf
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May 24, 2014 | 2007 Yamaha V Star Classic

1 Answer

Is the long end or the short end of the "gas on" lever the "on/off" side on my 1997 Yamaha V-Star


Hi, Anonymous the long end of the lever dictates fuel valve operation for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. 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.
yamaha star 650 custom fuel valve Google Search
Motorcycle Message Board Motorcycle USA
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
https://dd5394a0b8ca8e97ba29-abf76f3d91a2125517d6c7c409f095c7.ssl.cf1.rackcdn.com/content/common/manuals/1999/LIT-11626-12-30_126.pdf

May 11, 2014 | 1998 Yamaha V Star Custom

1 Answer

I have a 1999 v star classic and it turns over but will not start


Hi, Randall and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
8. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
9. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
10.. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
11. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2, TPS, ETP, IAC,or BAS).
12. Faulty neutral, clutch lever, or kickstand safety switch.
13. Faulty fuel pump or fuse or relay.
14. Tilt sensor needs a reset.
15. Security system not disarming alarm needs a reset.
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.
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1 Answer

Yamaha Road Star carburetors running out of fuel


Hi, Anonymous always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing*
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn*
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working*
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
* If equipped or applicable.
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.
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http://www.starbikeforums.com/forums/18-engine-work/5238-engine-bogs-past-1-4-throttle.html
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1 Answer

Petrol tap on / reserve position


Hi, Andrewjoh128 your fuel valve positions are as follows with the long end of the lever pointing:
1. Forward=off
2. Down=on
3. Up=reserve
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.
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1 Answer

2007 road star 1700 no gas to back cylinders


Hi, Anonymous always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Fuel valve/petcock not in the on or reserve position.
5. Vacuum line to fuel valve cracked, broken, pinched, or missing
6. Fuel valve/petcock clogged or diaphragm cracked, cut or torn
7. Fuel line from the fuel valve to the carburetor or fuel pump clogged, cracked, pinched, bent, broken, or missing.
8. Fuel pump not working
9. Fuel line touching cylinder or head causing fuel to boil and vapor lock, repair by rerouting and wrapping line with convoluted tubing.
10. Carburetor inlet clogged.
11. Carburetor float or needle and seat stuck.
12. Carburetor not venting properly overflow line or bowl fitting clogged, pinched, or bent.
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.
Running on one cylinder
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1 Answer

1981 yamaha 650 what position should the petcok b in? pri res oo on


Fuel petcock position depends entirely on what you're doing with your bike at the time.

In normal use, the fuel petcock should be set to the "on" position and left there. In that position, gasoline will be drawn from the tank only when the engine is running and generating vacuum. This prevents overfilling the carbs when the bike sits.

When you're riding the bike and it starts to sputter, it's time to move the petcock to the "reserve" position so that you can use the last few drops in the tank (on a 650 special, this was either .3 or .5 gallons--can't remember which off the top of my head) to nurse your bike to a gas station. Once you've filled the tank, move the petcock back to "on." The bike will still run fine if you keep the petcock in the reserve position, but when it starts to run low on gas--well, you won't have that emergency reserve to get yourself to the gas station.

If you've managed to run the bike out of gas completely, or if you are getting the bike ready for service after having drained the carbs for the winter, you'll need to move the petcock to the "prime" position for a few minutes. This by-passes the vacuum line cutoff mechanism and lets gasoline flow until the carb floats shut off the fuel valve (this is also how all older motorcycle fuel petcocks operated). A sticky float or poorly sealing float valve in the carb can, however, cause far too much gasoline to drain into the carbs (and into the crankcase, if you're particularly unlucky), which is why you should not leave the petcock in the prime position for an extended period of time.

Some Yamaha XS650 motorcycles (can't tell if that's the model you have) have a tank with two fuel petcocks, one on each side, to fuel each carb. If you have a tank with this setup, be aware that setting one fuel petcock to "prime" will affect both cylinders, as there's a crossover tube to equalize fuel levels between the carbs. Also, for reasons I could never figure out, on one XS650 I owned, moving either petcock to "prime" permitted fuel to flow on a gravity feed out of both petcocks simultaneously. I could never figure out exactly why it was doing that.

Jun 06, 2011 | Yamaha XS 650 G Motorcycles

1 Answer

Reserver Tank Switch Setting


Hi, Stuart899 fuel valve lever in 6:00 position is on 9:00 position is off 12:00 position is reserve for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. 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.
yamaha star 650 classic Reserve Tank Switch Setting Google Search
Motorcycle Reserve Fuel Switch Guide
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

Jun 22, 2010 | 2006 Yamaha V Star Classic

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