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January 12th, 2007, 03:40 AM   #61
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RE: Re: RE: Understand

Hi Sparks

I've read thru the posts and noticed your name comes up a bit.
What's approximate cost for a rewind?
Why does it still go at all with those sort of readings?

Shayne
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January 12th, 2007, 08:38 AM   #62
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Hi Coastie,

The reason it still runs is when you start to generate electric if the voltage is high enough it basically pushes it's way through but will not be very stable hence all of a sudden it will stop and could take some time to restart. You will probably find if you take the plug out it will be as black as the Ace of spades.

Cost to rewind your stator will be 190 Eros plus an extra 8 Euros for post.

Regards

Steve.
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January 12th, 2007, 12:48 PM   #63
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Hi Sparks

Yep you're on the money there, the plug is pretty black but I thought the cause was running too rich.
All my troubles may be the stator all along.
I've found some other probs with my Hussey recently (like water in the oil) so I have to find the cause of this and see what the damage is - literally and budgetary.
I'm hoping it's just a water pump shaft seal and not the head gasket.
Only had the bike a couple of months now so I guess it's 'welcome to the world of Hussey ownership'.
When and if it goes it does really go though.

Shayne

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January 13th, 2007, 05:50 AM   #64
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Hi,

Just thought this might be of some interest to somebody, it's a photo of four SEM stripped source coils from a stator a guy sent me from Seattle. You can see the thin green lines, this is where the enamel has deteriated and the copper wire has oxidised when the moisture gets in, this brings shorted turns(low voltage output) or compete open circuit.
All so you can see how tarnished the copper wire is should be a bright copper colour.

Sparks.
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SEM ignition stators-husaberg-coils.jpg  
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January 25th, 2007, 01:05 PM   #65
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cheers sparks
just got chance to fit stator tonight fired up 3rd kick
bit late for a ride thou

thanks again for super quick service
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February 20th, 2007, 08:33 AM   #66
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A bit of interesting feed back regarding SEM ignition stators, most of the stators I rewind are totally open circuit across black and red but there are some that come in that give a reasonable reading, when I rewind this kind of stator the feed back from the customer is nearly always the same.
Usually there initial problem has been bad starting and what appears to be an over richness of fuel one or two people leaned off the mixture and this cured the problem for a short time until the same problem returned.
What happens when you get under voltage to the coil is one the spark is weak and two the spark duration is shorter, in turn this gives bad combustion which gives the impression that the engine is running rich.
When they refit the rewound stator they find they have to rejet the carb because now the spark duration is longer which in turn gives better combustion and now require more fuel.
They also go on to say that starting is a whole lot easier kick or lecky.
So if suddenly you start having starting problems or the engine starts to become over rich for no apparent reason it could be a sign of ignition problems but check for needle and nozzle wear first.

Sparks.
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February 20th, 2007, 06:55 PM   #67
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Interesting comment Sparks.I would assume this would apply to any ign system and engine that developes a rich condition for no apparent reason.
You mentioned that the stator coils may give readings that are not very far from spec.Is there any way to verify this condition causing poor spark? Or is it a exclude everything else sort of thing?
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February 21st, 2007, 12:49 AM   #68
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Yes indeed nsman this problem can exist in all ignitions that rely on stator voltage to power the system but I was just keeping it to the SEM system because this is the one that causes the most trouble.
The re-jetting lean on the four stroke is not as serious as on the two stroke thats a bit more serious.
When I used to work on the TZ's that had the same problems as with the Husaberg they didn't bother to re-jet and now the engine is running lean and this lead to many seizures.

Dare I explain it again or should I say when testing the spark jump gap make sure it is as far away as possible from the plug hole just in case there is any petrol mixture in the cylinder.
A good stator should jump a spark of around 8 to 10 mm without really having to hammer the kick start. But even when the engine is running it my not be running to it's full potential and you my find you my have to alter carb settings all through the rev range.
All I'm trying to say is if anybody starts to have starting problems for no apparent reasons and the carb settings have always proved good and the resistance readings from the stator come within spec test the spark jump distance if you find the kick start has to be really hammered for the spark to jump this distance then the stator is on it's way out.

Sparks.
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March 13th, 2007, 07:07 AM   #69
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For what it's worth I finally got to ride my sparks rewound SEM equipped '03 FE400. I must say that starting is much improved as opposed to the last ride in November of '06. All things being equal for all intents and purposes, my seat-o-the-pants testing method came back with much improved performance. I pulled the front wheel off of the ground in 1st and 2nd whereas last November the thing didn't have enough ambition to get out of it's own way. Now, could there be other factors, maybe... The jetting has remained the same and temps being low 40's F in Michigan in November and two days ago so that shouldn't be a factor. I noticed improved starting over the "stock" version. In fact, I started the thing off of the button dead cold at ~45 F! It took a couple of tries, and after a backfire or two it fired up, go figure. I did fudge with the manual decomp while starting but still I don't think the bike has started cold off of the button in 1 1/2 years...

Initial product impressions combined with excellent customer service and support are and "A".
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March 14th, 2007, 12:53 AM   #70
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Hi Kzoo,

Nice to here there is good improvement. You mentioned that you have left the jetting the same, is the jetting stock or has it been altered over the years?. Keep an eye on the performance as the tempurature rises.

Regards

Sparks.
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