Question about 2008 Beta Alp 125

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Spark problem gooa spark on 1&2 poor or no sparkon 3&4 reversed coyles&spark igniters same problem pick up coyles check 579ohms&550 on hot day 550&532 in cold house.

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Check the ground

Posted on Nov 10, 2008

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I have yamaha warrior 350 that has no spark. have changed cdi box, pick up coil, ignition coil, stater, spark plugs basically everything besides wiring harness. has 110lbs compression. i need help.

Hi Cheyenne, if you have a CKP sensor it needs compression to send correct signal to the ICM/ECM, make sure both spark plugs are in heads and use a grounded third plug to check for spark or hold spark plug cable close to spark plug in head. If still not getting spark the usual suspects are:
1. Fouled spark plugs.
2. Battery voltage below 8.7 volts, loose or broken battery cables, check the "NEGATIVE" cable at both ends.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, MAP or BAS sensor.
7. Faulty ignition switch.
8. Security alarm failing to disarm.
For more information about your issue, please visit the websites below. Good luck and have a nice day.
Yamaha Motorcycle Service Repair Workshop Manuals

Oct 10, 2015 | Yamaha Motorcycles

1 Answer

1998 gsxr 600 no spark


Verifying the Spark

Remove the upper and side fairings, using a 4 mm Allen wrench to unscrew the fairing bolts. Unlock and remove the rider's seat, using the ignition key.

Pull the fuel lines off of the fuel valve under the left side of the fuel tank. Unscrew the pair of bolts from the base of the fuel tank, using a 10 mm socket. Pull the fuel tank to the rear of the motorcycle to remove it..


Pull the cables off of the two spark plugs on the right side of the motor. The spark plug cable furthest to the right is connected to the right ignition coil, while the second cable is connected to the left ignition coil. Unscrew the spark plugs from the motor, using a spark plug socket. Plug the ignition cables back onto the removed spark plugs.

Hold the spark plugs against the motor and start the motorcycle for a few seconds. Observe the gap between the electrode at the tip of both spark plugs for spark. Ideally, the spark should have a bright, blue appearance.

Replace the spark plugs with new DR8E spark plugs, if no spark is present. Repeat the test. Replace the corresponding ignition coil if there is still no spark present at the spark plugs' electrodes.

Proceed to Section 2 for further diagnosis, or reassemble the motorcycle following the reverse method of removal.
Testing the Windings

Remove the suspect ignition coil from the motorcycle's frame, using a 10 mm socket. Unplug the coil's cables from the remaining spark plug in the motor and from the spark plug removed in Section 1. Unplug the motorcycle's wiring harness connector from the back of the ignition coil. Remove the remaining ignition coil, if needed, using the same procedure.

Set your multimeter to read an R X 1 resistance range, using the meter's settings dial.

Measure the ignition coil's primary winding at the terminal that connects to the motorcycle's wiring harness, using your multimeter. Touch the meter's red probe to the coil's positive (+) terminal and the black probe to the coil's negative (-) terminal. Take note of the measurement on the meter's display. Replace the ignition coil if its primary winding has a resistance measurement less than 3 ohms or greater than 5 ohms.

Set your multimeter to read an R X 1,000 resistance range, using the meter's settings dial.

Measure the ignition coil's spark plug cables, using your multimeter. Touch the meter's probes to the metal connectors within the cable's end caps. Take note of the resistance measurement on the meter's display, indicated in ohms. Replace the ignition coil if the cables have a resistance measurement less than 25,000 ohms or greater than 45,000 ohms.

Reinstall the ignition coil if its primary winding and spark plug cables are within the specified resistance range, using the reverse method of removal. Replace the entire ignition coil if either the primary winding or the spark plug cables are within specification, as the ignition coil and its cables are a combined assembly.

Reassemble the motorcycle following the reverse method of removal. Connect the left ignition coil's cables to the pair of spark plugs in the middle of the motor's cylinder (#2 and #3), while the right coil's cable connect to the spark plugs on the sides of the cylinder (#1 and #4).

Jan 11, 2013 | 1998 Suzuki GSX-R 600

1 Answer

Engine is stalling

Hi Chris, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals,
ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust vale.
For a prime suspect please visit website below and good luck:
Harley Diagnostic Codes 04 to Present

Sep 04, 2012 | 2005 Harley Davidson FLHTCUI Electra Glide...

1 Answer

I tried using quick start on it, but all that did was make it sputter a bit, so I am assuming that the fuel is not reaching the cylinders, anyone have any ideas?

1) Check for spark remove one of the plugs, connect the plug wire to it and ground spark plug base to a good ground , such as the cylinder head , position the plug so you can see the electrodes , crank the engine over , a fat blue spark should be evident. 2)If the spark is good , check for one or more of the following possible malfunctions 1) Obstructed fuel line or filter.2) leaking head gasket(s)3) low compression. If the spark is not good, check one or more of the following a) Weak ignition coil(s) b) Weak CDI unit. c)Loose electrical connections. d) Dirty electrical connections. e)Loose or broken ignition coil ground wire. f) Broken or shorted high tension lead to the spark plug. Difficulty in starting. Check for fouled spark plugs, Improperly adjusted choke, contaminated fuel system, improperly adjusted carburetor,weak ignition unit,weak ignition coil (s), poor compression

Feb 05, 2011 | 1980 Yamaha XJ 650

1 Answer

85 GS550 and the spark module or the spark igniter is bad. swapped the coils from right to left to verify the coils are both good, and they are. The pick up coils also swapped and they are good. I only get...

hi mate ,,i've got the same problem.<br /> i bought a basket case 550ef with no igniter unit(cdi) fitted,,turns out they're near impossible to find used,or stupidly priced...if i were you i'd go down the boyer bransden route because you don't have to buy the coils or pick ups you can get the igniter module seperately.hope this helps.........john..

Aug 15, 2010 | 1985 Suzuki GSX 550 ES

1 Answer

What does the igniter do on my motorcycle and why does it get hot and smoke when i try to start it?

Its shorting out and the ignitor provides spark to the plugs. Check all wiring for incorrect connection.

May 12, 2010 | 1983 Suzuki Gs 550 L

1 Answer

Engine heating up think it cuz of points or timing off. want to know how to fix

3 things can make a engine run hot

1 lean fuel mixture

2 late in spark timing

3 timing chian is stretched

1 check spark plug colour to determine if burning lean

2 advance timing, on points turn plate but eletronic need to change pick-coil loaction

3 adjust chain tensioner or major overhaul replace chain, would need to get a manual for this repair

Nov 17, 2009 | 1981 Yamaha XJ 650

1 Answer

Engine hard to start gets hot and no power checked carbs their ok

fouled spark plugs...intake manifold leak... you could have a vacuum line come off or isnt on all the way. bad batch of gas..weak coils, or poor compression. or the choke could not be operating properly. also running too heavy an oil could cause this problem, you should run 10w40 only.

Oct 05, 2009 | 1989 Suzuki GSX 550 EF

2 Answers

I have a Suzuki gs 550 1980 sometimes I don't have spark.

with electrics start at one point and eliminate each possible cause ie; is the kill switch corroded inside the switchgear due to water ingression, when did you last change the your coil working there a loose/damaged connection in the ignition system wiring, a bad earth there dirt on your electronic ignition pick up or if you have points do they need cleaning/replacing condensers need replacment from time to time. you may have a damaged ecu if you have electronic ignition.. hope this helps

Jun 04, 2009 | 1980 Suzuki Gs 550 L

1 Answer

Wont start

Hi and welcome to FixYa,

Appreciate the direct "Ask Me".

Your described problem based on the bike being a 1982 model could be varied, among them are:
  • weak spark - not necessarily weak battery. Culprits could be loose loose connector to the CDI, low IGN +12 to the + terminal of the coil (check with a voltmeter while just switch on and when cranking/starting), or even a loose ground terminal. Check spark by removing plugs, reconnect the plugwires, let the threaded end touch metal part of engine, crank. Sparks should be strong;
  • corroded/poor contacts in the ignition switch resulting to the above. You can test by running a jumper wire straight from the battery to the + terminals of the ignition coil;
  • too lean air/fuel - plugs should be brownish in color;
  • air or vacuum leak - resulting to the above and high or poor idling;
  • unbalanced carbs - carb check/clean, verify air adjustment screw number of turns,
  • compression low - have a compression check.
Would look forward to your updates. Good luck and thank you for using FixYa.

Feb 02, 2009 | 1982 Suzuki Gs 550 L

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