replacement coils.

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Glyn.G
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Suzuki 2-Strokes: Suzuki GT380 B- Yamaha FZ1
Location: High Peak Derbyshire.

replacement coils.

Post by Glyn.G »

Hi everyone,
Can anyone suggest a good set of aftermarket coils to replace part no 33410-31010 I can use on my 1977 GT380. I've been looking at a set on e-bay sold by Legend - Motorcycles then I read the 1 star rating a previous customer had given so decided against them. Is there anyone out there that's using a set of aftermarket coils, and if so how are they performing. All suggestions will be much appreciated.
Kind Regards,
Glyn.
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markush
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Re: replacement coils.

Post by markush »

Glyn.G
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Posts: 207
Joined: Fri May 30, 2014 5:41 am
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Suzuki 2-Strokes: Suzuki GT380 B- Yamaha FZ1
Location: High Peak Derbyshire.

Re: replacement coils.

Post by Glyn.G »

Cheers Markush,
Are you using the 12v battery coils yourself ?
Regards,
Glyn.
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markush
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Re: replacement coils.

Post by markush »

Hi Glyn!

A friend of mine uses the Rexcauntracing-Coils in his GT250 and GT550.
He is happy with those, no problems. He used them first with points, later with electronic ignition.

I myself have no problems using the original coils, mainly the gray ones from Kokusan (T500.3402.12V), which I also take from the twin-sets to assemble triple-sets. I use them with electronic ignition, too.
If one coil fail, I still have enough replacement; I always bought some of them when they were cheap.
(I had only one really defektiv GT-coil in the last 40 years)

bye
Markus
Glyn.G
To the on ramp
Posts: 207
Joined: Fri May 30, 2014 5:41 am
Country: UK
Suzuki 2-Strokes: Suzuki GT380 B- Yamaha FZ1
Location: High Peak Derbyshire.

Re: replacement coils.

Post by Glyn.G »

Thanks Markush,
The coils on mine are the cream coloured ones, which I think are the Denso ones and I'm almost sure the left hand one is ready to fail. The bike runs ok but it's only producing a weak spark on the left cylinder. So rather than replace just the one I decided to replace all three as they are not an expensive item.
I will be ordering a set of Rex Caunt coils now I know there is someone else happy using them.
Kind Regards,
Glyn.
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markush
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Posts: 187
Joined: Thu Oct 03, 2013 4:39 am
Country: Germany
Suzuki 2-Strokes: GT250/380
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Re: replacement coils.

Post by markush »

Hi!

Maybe of interest:
Some time ago we made some measurements of different ignition coils in the german Wartburg-Forum.
Someone put the outcome into diagrams.
One can see: the Denso-Coils (cream colored, 029700) aren't so bad in comparison to some of the so called High-Power-Coils.
(see diagramm in posting from 28. Dezember 2016)
http://w311.info/viewtopic.php?f=26&t=17709#p196377

Markus
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