Posted on Dec 13, 2009

No spark at plugs when cranking over

No spark at the plugs when cranking over ,bike will start on a push,runs ok no flat spots ,sometimes wont start when hot when cranking over

nemoglenn Dec 18, 2009

Had a good look the other night wires on the regulator are all corroded green put new conectors on the wires she charging ok 14.5 v me tinks faulty reg may be the prob,robing the spark when cranking, it makes me tink why ducati can get away with leaving wires exposed like that the other conectors on the bike are water prof ,anyway you cant beat the jap stuf tank god i got it cheap

1 Answer

bobkoure

Contributor 36 Answers
Posted on Dec 14, 2009

bobkoure

Contributor

Joined: Dec 13, 2009

Answers

Questions

Helped

33940

Points

Sounds a lot like a failing battery. The starter's pulling enough power that you aren't getting spark. You could try using jumper cables from a car battery, see if you get spark when cranking. Be careful! It's way easy to short stuff out with those jumpers.

bobkoure Dec 19, 2009

...and you may have fixed it.
Put a meter on the power going to your electronic ignition modules (I think they're "coil controllers" or something like that in the manual). Crank the engine - does the voltage drop below 9?
PS easiest way to test cranking is to disconnect leads to plugs, reconnect to an old set of plugs - just make sure they touch the engine. Don't run the starter for more than 15 seconds at a time (less is better). It will overheat and die expensively. You *might* kill a coil controller by running it disconnected from any sparkplug, but that may nave been an early batch that was fragile and now there's an urban legend. Better to be safe, IMO.
Oh - if it drops below 9, try again with jumper cables.

Add Your Answer

Upload

Upload an image from your computer

Uploading: 0%

my-video-file.mp4

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

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

0helpful

1answer

1996 Isuzu Rodeo won't crank is getting fire to the coil but not from the coil sometimes. It will run and then die

If it wont crank. Check your battery make sure it has voltage to start vehicle and check also when cranking and while running. Inspect spark plugs and coil wires for any exposed wires. Makes sure spark plug gaps are within spec. If everything is ok check fuel pressure with pressure gauge could be filter or pump and or regulator if fuel pressure fails. But most likely be your distributor

Read full answer

Jan 04, 2016 • Isuzu Cars & Trucks

0helpful

1answer

Why honda ace 750 wont start

The bike cranks this is good battery would appear OK, first check the run/stop switch is set to run. How old is the fuel if over 2 to 3 months replace it, do you have a spark on each plug, is the clutch interface switch stuck, is the side stand switch operating correctly. The list is endless I am sorry to say. When you last rode the bike was it OK? When you stopped it after the last time of riding did you do anything that was not the norm i.e. stall, stop in gear etc? Is it possible the fuel level is low and you need to engage reserve?

Sometimes the fuel tank breather gets blocked this prevents fuel flowing to carbs or injectors.

Sorry that this is not a yep that's your problem type of answer and hope it is something simple.

Read full answer

Sep 03, 2014 • Honda VT 750 CD Shadow A.C.E. Deluxe...

0helpful

1answer

Pulled the choke bike wont start

Usually if you flood it (by overchoking), you open the throttle wide open (to draw in more air to lean the mixture) while cranking starter.
Beings you had the spark plugs out you could have cranked it then, and let the engine compression blow the excess gas out the spark plug holes.

Read full answer

Jan 12, 2014 • 1990 kawasaki VN 750 Vulcan

0helpful

1answer

Bike just stoped

check wiring to egnition check spark plugs if not that dont no what else

Read full answer

Jun 24, 2013 • 1993 kawasaki ZZR 400

1helpful

1answer

Went for a ride the other day my ktm 450 died couldnt get it too run brought it home checked valve clearances all ok cleaned carburettor out and jets all ok checked spark at plug all ok bike still wont...

the flat battery shouldnt cause the problem and you said it has spark at the plug, so that sort of eliminates electrical problems.
if the carb is clean and it has good fuel, its a bit tricky to diagnose.
perhaps a sheared flywheel key,
blocked fuel line( it might have a tiny filter in the tank on the ends of the fuel tap pick up tubes)
or short in the kill switch may let it spark sometimes)

Read full answer

Mar 20, 2011 • 2004 KTM EXC 450 Racing

3helpful

2answers

Why won't my car stay started when i put the key

these jeeps are famous for the crank sensor going when the car wont run check the injector circuit it will show no voltage if you change the crank sensor make sure you hold it in when you tighten the bolt if you start the engine and start getting misfire codes loosen the crank sensor push it in just a little bit more you only have a few thousands of an inch it makes a difference . new sensors have a cardboard circle glued on them to prevent you from pushing it in so it hits the flywheel i had an issue where it had to be pushed in twice to run right auto parts store 38.00 dealer wanted 170.00 i bought the 38.00 one hope this helps

Read full answer

Jul 26, 2010 • 1996 Jeep Grand Cherokee

1helpful

2answers

2008 Ninja 250r Wont start it just sits there and cranks it only has 654 miles on it any suggestions? thanks

Pull the spark plug and squirt some gas in the cylinder, put the plug back in and get the juices flowing. Sometimes the fuel pump goes dry and needs to be primed, the crank alone won't do it, it needs some umph! Hope this helps.

Read full answer

Mar 21, 2010 • 2008 kawasaki Ninja 250R

0helpful

1answer

I ran out of fuel recently,bike wont sta

You need to get basic checks.

Is there spark?
Is there petrol at plugs?
Is timing correct?
Compressions OK.?

Read full answer

Feb 17, 2010 • 1976 kawasaki Z 750

3helpful

2answers

Bike wont start

I posted this for a similar problem, maybe it can help. Are you sure it's getting gas to the carbs? Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while (ours unfortunately sat for a year or so without being run).

Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.

Read full answer

Aug 03, 2009 • 2001 Suzuki SV 650

0helpful

1answer

Motorcycle wont start

If cranking is slow it could be a sign of a 'near to dead' battery.
When cranking on its battery there is a too low voltage and weak or no sparking.
When jump starting or pushing the bike, there is a good spark and the engines fires up.

Check also the spark plugs! And carburettors cleaniness

Read full answer

Mar 08, 2009 • 1997 Suzuki GSX-R 750 V

Not finding what you are looking for?

View Most Popular

2004 Multistrada 1000 DS

Motorcycles

1996 Isuzu Rodeo won't crank is getting fire to the coil but not from the coil sometimes. It will run and then die

Isuzu Cars & Trucks

874 views

Ask a Question

Usually answered in minutes!

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

Answer questions

Manuals & User Guides

Have a manual for 2004 Ducati Multistrada 1000 DS? Or just drag it here!

Related Topics:

No spark at plugs when cranking over