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Gs1000 electrical problem

  • Thread starter Thread starter Nickus?
  • Start date Start date
N

Nickus?

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Hi,I woke my gs up after letting her sleep in shed for 13 years,cleaned carbs out & fired it up onĺy to find the carbs still weren't that good so stripped them again & it much better. Still struggled to rev past 4k but low down was ok. Held it open trying to clear carbs by holding hand over carb mouths. Managed to get it up to 5.5k when my neutral light,oil light,indicators,parking light & coils blew. Had a look through harness & cleaned the earths up. Bought new coils & electronic ignition from boyer bransden fitted it all & had it running but still struggling to rev cleanly. Thought I'd try getting it to rev past 5k when it blew main fuse& neutral light again. Found a dry joint in main lead to positive battery terminal behind fuse box so fixed that. Still no spark so now need to take it all off & get it tested. Was checking lights still work when I saw a puff of smoke from the electronic ignition box so now it really is stuffed. Any suggestions as to where to start looking for what could be wrong before I spend another ?180 on an electronic ignition kit that may self combust within 10 minutes of fitting? Any help would be greatly appreciated, thanks,
Nick
 
The bikes been sitting for 13 years. I'd go thru the wiring harness connection by connection, ground by ground. Clean up the fuses box and clean all your switches. Also get a shop manual and make sure everything is wired correctly. This really won't take more than half a day and is good maintenance. Use Deoxit to clean the connectors.
 
If you have a points system then I'd go ahead and replace the points and condensers. Again, without knowing what year bike it's difficult to know what carbs and ignition system you have.
 
Sounds to me like an over voltage situation. Buy a multi meter and do the tests in the stator pages. But first get ignition sorted, boyer are not the best systems. Newtronic is less cost. As posted we need to know bike details to help you more. And use the search function and welcome to the site ! And we like pictures :cool:
 
Hi,sorry it's a 79 gs1000ec. Been through the loom & all I found was a dodgy joint on the main fuse for the battery. The reg rec checks out ok on my meter & so do the earthing points. I added an extra earth from the battery to the frame & cleaned the others. Trying to add some pics now so bear with me as i don't use forums very often. Thanks again,
Nick
 

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Hadn't thought about the switches so will give them a clean up next. I'm hoping the dry joint on fuse box would have been causing the spikes that have fried the original coils. Guess I'll have to buy some standard coils & put the points back on to get it running right before I spend out on another electronic ignition kit. Was hoping to avoid buying coils twice so went with the boyer kit as they only 20 minutes from home. Will take it all back to them when they open Tuesday & get them to test their kit. If I hadn't messed about with it this morning maybe they could have pointed me in the right direction. While checking what lights I still had this morning it all seemed fine apart from no spark until I switched from dipped beam to main & got a puff of smoke from the blue box. Now it's definitely buggered.
 

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Glad I've got 6 other bikes to choose from at the moment so decided to take my tdr250 out for a blast then my yzf750r & finished off on ktm950sm. Need to sell the yzf & ktm as I want to keep my licence. 😎
 
Ktm950sm 20150507_171657.jpg
Probably best bike I've ever ridden but I'm too irresponsible to use it on road. Power wheelies in 3rd 😂 That's why I need to sort gs out. Can't ride far on ktm cos it's seat is too uncomfortable for my fat arse
 
Ktm950sm View attachment 50748
Probably best bike I've ever ridden but I'm too irresponsible to use it on road. Power wheelies in 3rd 😂 That's why I need to sort gs out. Can't ride far on ktm cos it's seat is too uncomfortable for my fat arse.
 
I have an old Boyer on a Commando. I do not like the advance on it at all. Are you still using the Mechanical Advance on the Suzuki?

I'm going to switch to the newer Boyer, or an alternate brand of electronic ignition.
 
Nickus? said:
Hi,sorry it's a 79 gs1000ec. Been through the loom & all I found was a dodgy joint on the main fuse for the battery. The reg rec checks out ok on my meter & so do the earthing points. I added an extra earth from the battery to the frame & cleaned the others. Trying to add some pics now so bear with me as i don't use forums very often. Thanks again,
Nick
Click to expand...

Nickus - see post #6 for the link to all of your answers, including posting big pictures The early 1000 fuse box is notorious for having problems, so your electrical issue is either at the fuse box, or it's over charging.

As far as the bike not revving up, was this an issue before you put it away?

Actually, it looks like a 78 with a replacement tank. Is the choke lever on the side of the carbs, or the handlebars?
 
I bought the micro power digital ignition kit with the digital coils that doesn't use the mechanical advance so no idea how it behaves as yet.

Hadn't heard about the dodgy fuse box but should be ok now. Cleaned it up & resoldered all the joints but might buy a newer type.

It was running fine when I stopped using it but I bought an xtz750 so started using that. Will give the carbs another cleaning out. Pilots ok now as it picked up nicely from idle but still not right over 4k
The choke is on the left of carbs & yes I think a replacement tank. Its only done 32k in the 38 years so still plenty of miles left in her once sorted.
I read the stator pages,some useful stuff there & once i get it running again will test the stator output. Think I'll have to buy some cheap coils & put points back on until I get this sorted .
Thanks for taking the time to give me a hand
 
You need to be sure to clean the carb body as shown in the tutorial. That's what gets plugged, not just the jets
 
Yes took carbs round my brothers with loads of carb cleaner & used his compressor to blow all the passages through. Going to go to boyer bransden office on Tuesday to find out what it will cost me to replace the bits I need. Definitely the blue box but hoping coils will be ok.
 
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