Question about 1983 Yamaha XJ 650

2 Answers

Cold starting problems 1981 yamaha maxim 400

Hey i need some real help. Ive changed the gas tank (silver coil & ignition pack) ive changed the spark plug coil where it screws on too. I dont not what to do next, when i take one wire plug off the bike it starts fine (when warm) when i do the opposite side the bike will not start.

I read that thse bikes have always had starting problems on cold start, and one guy says he cleaned the carbs and it starts perfect when its cold? please someone give me some advice on this bike please.

Posted by matteogianca on

  • matteogianca Jul 10, 2009

    hey there thanx for the reply the vacuum lines look okay i dont see or here any holes or hising the air box has some gunk stuff they may have tried to fix that b4 i got the bike? what is a carb kit sorry im not great with bikes yet.. and a hotter spark plug, i have ngk what should i put in?

  • matteogianca Jul 10, 2009

    The last thing that was done, were the gaskets for the carb to the motor and the guy said it started perfect when he did that so unless the seal wore out really fast and its causing it not to start?

×

Ad

2 Answers

Anonymous

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had the same problem. I found that the ground on the wire harness under the seat was not grounded! It is worth a check.

Posted on Jul 15, 2009

Ad

mike fuson

  • 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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 636 Answers

Could be a few things going on . have you checked the vacuum lines? could have one plugged or collapsed? Could be a carb problem? have you installed a carb kit yet ? or you could try a hotter spark plug.

Posted on Jul 10, 2009

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hi. Ive Got an 1.4 hyundai Gets. Ive Change plugs. Coil Pack. Cam Sensor. Crank Sensor But still Have No Spark On plugs


what about the immobilizer and ignition control module or ECM
guessing wastes money so have the fault codes read first and then fix the problem area

Oct 10, 2016 | Hyundai Getz Cars & Trucks

1 Answer

Mower runs awhile and just quits like the gas is turned off. Changed gas line, filter, drained gas tank and changed air filter. Help


Next time it quits check for spark at the spark plug. You may have a failing ignition coil electronics which manufacture into the coil pack.

Apr 12, 2015 | Garden

2 Answers

How do I fix a trouble code for Nissan Murano P0300?


DTC P0300: Random multiple misfire detected. Probable cause:
1. Vacuum leaks, damaged hoses and/or incorrect routing
2. Fuel contamination
3. Ignition system fault. Check ignition module, coil, spark plugs and wires
4. Fuel system problem

Jan 29, 2015 | 2003 Nissan Murano

1 Answer

1989 f250 Ive had to fill up front tank everyday only driving little over 100 miles (highway)


Check for black smoke out of the tail-pipe when the engine is revved. Black smoke means unburned fuel. The most likely culprit is a plugged air filter/air intake. A plugged exhaust, especially the catalytic convertor will kill your fuel economy and power. It may also be in need of a good tune-up (spark plugs, filters, ignition wires, distributor cap/rotor). Also check tire pressures and make sure that you don't have any seized brakes.

Feb 13, 2014 | 1989 Ford F 250

1 Answer

Peugeot 206 problems


Probably gas or spark related. Check for spark on a spark plug wire, or on a couple of plug wires would be better. If you have a strong blue spark, then the coils are good, ignition is good, and you will need to see if gas is getting up to the engine. Do you hear the fuel pump come on?

Nov 11, 2013 | Cars & Trucks

2 Answers

How do I replace the ignition coil in my 2002 ford taurus



Removal & Installation

3.0L (VIN S) Engine

  1. Disconnect the negative battery cable.
  2. Unplug the engine control sensor wiring connectors from the ignition coil and the radio ignition interference capacitor.
  3. Tag and disconnect the spark plug wires from the coil by squeezing the locking tabs, then twist the tab and pull upwards.
  4. Unfasten the four ignition coil retainers and remove the coil and the coil ground wire the radio ignition interference capacitor. Save the capacitor and coil ground wire for re-installation of the coil assembly.
  5. Wipe the coil towers with a clean cloth dampened with soap and water. Remove any soap film and dry with compressed air. Inspect the coil for cracks, carbon tracking, dirt or damage and replace as necessary.

    0996b43f802333d8.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig. Ignition coil assembly mounting-3.0L DOHC engines


To install:
  1. Place the coil, capacitor and the coil ground wire onto its mounting location on the right hand valve cover.
  2. Install the coil assembly retainers and tighten to 45-61 inch lbs. (5-7 Nm)..
  3. Apply dielectric compound D7AZ-19A331-A or its equivalent to the spark plug wire boots.
  4. Attach the spark plug wires to their proper terminals on the coil and make sure the boots are firmly seated so that the locking tabs engage.
  5. Attach the engine control wiring connectors to the ignition coil and the radio ignition interference capacitor.
  6. Connect the negative battery cable, start the vehicle and check for proper operation.

Dec 19, 2010 | 2002 Ford Taurus

1 Answer

There is a misfire in my engine, changed plugs & wires. now it reads that the fuel leveling sensor is bad, will this help?


If there is a misfire, the cylinder that it is misfiring in will be recorded as a code in the computer.

Have the car scanned to determine which cylinder is bad. Then, replace the coil pack going to that cylinder.

Ignition Coil Pack Removal & Installation 2V Engine To Remove:
  1. Twist the spark plug wires off of the ignition coil towers. Mark the spark plug wire positions so they can be installed in their original positions.
  2. Disconnect the electrical connector from the ignition coil. CAUTION
    When removing the spark plug wires, a slight twisting motion will break the seal and ease removal.
    coilconn.gif

  3. Remove the mounting screws and remove the ignition coil.
To Install:
  1. Position the ignition coil pack on engine.
  2. Install mounting screws and torque to 53 in-lbs. (6 Nm). coilbolt.gif

  3. Connect ignition coil pack electrical connector.
  4. Match previously marked spark plug wires to ignition coil and install.
4V Engine To Remove:
  1. Remove the RH cowl grille cowlpic.gif
  2. Remove the screws and the water shield
  3. Mark spark plug wire positions
  4. Disconnect the spark plug wires from the ignition coil CAUTION
    When removing the spark plug wires a slight twisting motion will break the seal and ease removal.
  5. Disconnect the ignition coil electrical connector coilconn.gif

  6. Remove the mounting screws and remove the ignition coil
To Install:
  1. Position ignition coil pack. Install mounting screws and torque to 56 in-lbs. (6Nm)
    coilbolt.gif

  2. Connect ignition coil pack electrical connector
  3. Match previously marked spark plug wires to ignition coil and install
  4. Position water shield and install screws
  5. Install RH cowl panel
prev.gif next.gif

Aug 11, 2010 | 2002 Ford Taurus

1 Answer

How do i change the sparkplugs. an olds alero 99 3.4 130K ive done the front three but not the back three. help thanks mike


YOU NEED TO NUMBER TAG ALL SPARK PLUG WIRES ON COIL PACK MODULE IN ORDER SO YOU PUT THEM BACK IN ORIGINAL PLACE.REMOVE ALL PLUGS WIRES FROM COIL PACK.THEN DISCONNECT THE ELECTRICAL CONNECTORS ON COIL PACK MODULE THEN REMOVE COIL PACK.NOW YOU HAVE MORE ROOM TO GET TO BACK PLUGS.YOU NEED A LIGHT.A SMALL MECHANIC MIRROR.YOU NEED LONGER 3/8 EXTENSION.PROBABLY PLUG WIRE BOOT PULLER NOT MUCH ROOM TO PULL THE SPARK PLUG BOOT WITH HAND.

Jul 16, 2010 | 1999 Oldsmobile Alero

2 Answers

MISSFIRE


try unplug the up streem O2 sensor drive the car for a while then check the code if its not p0300 change the O2 sensor

Apr 07, 2009 | 2000 Hyundai Accent

1 Answer

No spark


Is the coil pack working at all? It could just be a simple ignition ground gone bad, or even a power wire corroded to badly. Also, clean the connections between the plugs and wires, and also the coil pack and wires.

Sep 10, 2008 | 2001 Ford Escort ZX2

Not finding what you are looking for?
1983 Yamaha XJ 650 Logo

499 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1176 Answers

Paul Ellermets

Level 1 Expert

6 Answers

Neil Lancaster
Neil Lancaster

Level 1 Expert

14 Answers

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

Answer questions

Manuals & User Guides

Loading...