Question about 1988 Yamaha XV 535 Virago DX

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Weak spark turns over spark weak

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Check resistance on plug caps and the ht lead end is not perished , snip it back 5mm for good core connection ! new plugs too !

Posted on Feb 18, 2014

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Posted on Jan 02, 2017

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2 Answers

Weak fire on pocket bike


Hi, I do a lot with these bikes, I think if you are getting a weak spark there is a couple things to check. First, do you understand how it builds the power to create the spark? The magnet in the flywheel has to be very close to the magnito or coil, if the gap is too much it will cause a weak spark, if the magnet is weak, weak spark, if the coil is shorting internally, weak spark. If the plug wire is damaged, weak spark. I hope this helps you.

Jan 25, 2015 | Quad 47 cc / 49 cc Pocket Mini Bike...

1 Answer

Weak spark


pull flywheel and replace sheer key on flywheel to get spark on time

Feb 23, 2014 | Garden

1 Answer

Starter wont turn flywheel


starter motor weak. weak battery or engine is seized. take the spark plugs out and turn engine over with spanner on the bottom bolt on the pulley. if thats fine and move the engine freely then check the battery try a jump off a good battery. if not good and still will not start with the spark plugs back in then the starter motor is weak and needs changing. can do any of these in any order you like.

Jan 02, 2014 | 1987 Ford Bronco II

1 Answer

97 ranger working fine yesterday,will not start today


You can't tell weak too well just looking

Check for injector pulse while cranking
like you did for spark

Check fuel pressure KO/EO

Dec 15, 2012 | Cars & Trucks

1 Answer

The car is a 1999 plymouth neon the spark coming out of the plug is weak and yellow engine will turn over but wont start it is getting enough fuel and replaced the plugs


check the spark output at the coil. If there is still weak spark than make sure there is 12 volts to the coil. If there is than the coil is probably bad.

Also make sure the engine is turning over properly. If the battery is low or the starter is drawing to many amps than there may not be enough power left over to deliver enough spark from the coil.

Feb 14, 2012 | 1999 Plymouth Neon

1 Answer

Weak ignition spark


Make sure battery is up at least 11 - 11.5 volts
A low battery will spin over and sound like it should when cranking sometimes, but the starter will rob spark from the ignition and not fire due to low voltage

Jul 17, 2010 | 1981 Yamaha XJ 650

1 Answer

Hi I have a 1996 suburban with a 5.7 atuomatic tranny 1/2 ton 4x4, it will not start,it turns over and has fuel at pressure test port, it has some spark but is weak at the spark plugs and weak at the coil...


try charging bat and all so have some 1 turn key on and off get by gas tank see if fuel pump is runing that yr had bad prob with wireing harnes going bad to the fuel pump

Nov 17, 2009 | 1996 GMC Suburban

1 Answer

1986 gas club car weak spark replaced coil still same


How do you know that the spark is weak?
Replace spark plug.
Check spark plug wire for leaks.
Replace fuel.
Clean points and reset.
If there is a battery check that it is at 12.5 during starting.

Sep 09, 2009 | 3d Rose Londons Times Funny Cow Cartoons -...

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