Question about 1982 Yamaha XJ 650

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Maxim 650 will turn over, but wont start

Bought it from some guy who said it had been sitting awhile, not sure how long.new battery and spark plugs. the bike will turn over, but will not start. i've cleaned the carbs out twice, all jets are cleaned out, ect. i've tried just about everything i know, but to no avil. the only other thing i can think of is the carbs need to be sync'd. Anybody got an idea?

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  • Yamaha Master
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Posted on Jul 15, 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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V650 won start in 650 Star Tech Forum
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf
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Jul 06, 2014 | Yamaha XVS 650 Dragstar Classic...

1 Answer

No spark to plugs


Hi, Anonymous and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
3. 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.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
6. Faulty ignition coil or electronic control module or CDI box.
7. Faulty CKP, CMP, or BAS sensor.
8. Faulty ignition switch.
9. Tilt sensor needs a reset.
10. Security alarm failing to disarm needs 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.
1982 xj650 maxim NO SPARK
Just bought 1982 Yamaha Maxim 650 No spark Help
Yamaha XJ750 Owners Workshop Manual
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http://www.carlsalter.com/pdfs/Yamaha_XJ600SK_Owners_Manual.pdf

May 04, 2014 | 1983 Yamaha XJ 650

1 Answer

My yahama maxim 650 wont full start running but it sounds like it wants too


Hey Nick, unfortunately it could be several things. As Tom Diffin mentioned carb gummed up or even bad fuel from sitting all winter. If your positive the spark plug is firing (pull plug, connect to plug wire, place within a couple mm of a metal bolt, CAUTION: hold with insulated pliers so you don't get shocked, bump starter and watch for a spark) then try a very small squirt of fuel (starting fluid would be great) into the park plug hole and replace the plug. Try to start if the engine fires and then dies you have narrowed it down to carb, fuel or timing. FYI get a motorcycle repair or operators manual that describes how to winterize your bike for long storage (check library, you can read for free and make a photo copy of a page cheap). Keep us updated and good luck.

Apr 18, 2014 | 1982 Yamaha XJ 650

1 Answer

My 82 yamaha xj 650 maxim turns over but wont start. it sounds like there is no gas getting to the engine . I put premium gas in . looks like the fuel filter hose is not clamped. and there is a slight


Hi, Shawn 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 module.
Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2, TPS, ETP, IAC,or BAS).
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box if applicable.
17. Tilt sensor needs a reset.
18. 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.
80 Yamaha Maxim 650 Won Start
81 yamaha xj650 maxim turns over after top end rebuild but doesn ignite...
Yamaha XJ750 Owners Workshop Manual
OEM parts for Yamaha
http://www.carlsalter.com/pdfs/Yamaha_XJ600SK_Owners_Manual.pdf

Sep 15, 2012 | 1982 Yamaha XJ 650

2 Answers

After driving, car will not restart, turns over fine, will start after 5 minutes


Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

http://technoanswers.blogspot.in/2012/02/car-starting-issues.html

---------

How to maximize fuel economy on your vehicle? http://schematicsdiagram.blogspot.com/2011/11/how-to-maximize-fuel-economy-on-your.html

------------

Car will not take fuel into the fuel tank? http://repairhelpcenter.blogspot.com/2012/01/car-will-not-take-fuel-into-fuel-tank.html

-----------

This will help.

Thanks.

Feb 27, 2012 | 1997 Chevrolet Suburban

2 Answers

No spark to spark plugs. Trying to restore old bike, if I can get it to start. 1982 Yamaha Maxim 750 YICS


That bike has two coils that often go bad, and also it has a semi solid state breaker ignition system that often causes problems. You should join a site for Yamaha maintenance, where you can partake of the members knowledge. see: http://www.yamahaclub.com/forums/topic/8640-1982-yamaha-maxima-650/

Apr 24, 2011 | Yamaha TX 750 Motorcycles

2 Answers

1982 yamha maxim 650 turns over but wont start battery is charged, turns over fine just wont fire up


you need to do basic diagnoses - 1 compression test,should be better than 130 lb and if in good order around 170 and all cyclinders within 14lb. 2 - check and make sure you have spark at all 4 spark plugs. 3- check and make sure you have fuel in carbies by undoing drain screw in each bowl, if above 3 all ok you probably have stale fuel and will need to remove carbs and clean out jets. this model also suffers from worn butterfly shaft through carbs which creates air leak and the manifolds to the head also leak and **** air.
0

Jul 20, 2010 | 1981 Yamaha XJ 650

1 Answer

Ok, I put new gas in my bike, changed the oil, new battery, all new plugs,solenoid works, starter is fine,checked wiring to my starter that's fine, fuses are all fine what the heck else could this be? My...


If the bike has been sitting for awhile it may be clogged with old gas that evaporated an turned to varnish.

Check your choke cable and make sure it's properly adjusted.

You may have to clean the carbs. Or your coils are not sending spark to the plugs.

Apr 02, 2010 | 1981 Yamaha XJ 650

1 Answer

1980 xs 650 . bike wont start, turns over but wont catch. the guy i bought it from told me it was running when he parked it three years ago. he also told me that he thought it might be the wiring?. i am a...


ck to see if you are getting spark. If not, ck the coils for wire connections and juice while cranking. If you have spark, the coils are fine. Make sure you are getting fuel..

Jul 10, 2009 | 1980 Yamaha XS 650 G

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