Coil testing
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
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silverstone
- On the street
- Posts: 43
- Joined: Wed Dec 26, 2012 2:10 am
- Country: UK
- Suzuki 2-Strokes: T350 3xT250J 2xT500 H2C,KH500,GT500,KLX250
Coil testing
How can I test to see if a set of T500 coils work or not ?
-
jabcb
- Moto GP
- Posts: 4310
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: Coil testing
Ground the spark plug to the cylinder head so that you can see the spark when you manually operate the points. Rotate crank so that points are closed & use screw driver to open points.
Should get a good spark. Could be something else if you don't get a good spark.
Check coil primary & secondary resistance.
Primary resistance should be around 4 ohms.
Secondary resistance should be 10k to 25k ohms.
Check resistance between either primary wire & the coil mounting bracket.
Should get an open circuit reading.
Look the coils over to see if you can find any cracks. Might currently be working ok, but the coil cracked for a reason.
The coil specs are on page 15 of: http://www.ozebook.com/compendium/suzi/suzidata1.htm
What problem are you having?
Should get a good spark. Could be something else if you don't get a good spark.
Check coil primary & secondary resistance.
Primary resistance should be around 4 ohms.
Secondary resistance should be 10k to 25k ohms.
Check resistance between either primary wire & the coil mounting bracket.
Should get an open circuit reading.
Look the coils over to see if you can find any cracks. Might currently be working ok, but the coil cracked for a reason.
The coil specs are on page 15 of: http://www.ozebook.com/compendium/suzi/suzidata1.htm
What problem are you having?
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
-
silverstone
- On the street
- Posts: 43
- Joined: Wed Dec 26, 2012 2:10 am
- Country: UK
- Suzuki 2-Strokes: T350 3xT250J 2xT500 H2C,KH500,GT500,KLX250
Re: Coil testing
No problem that i know of yet, just picked up a second hand pair of coils and wondered if there was a way of testing them before putting them on the bike.
