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Around 2 years ago - i purchased non running rusty GS500. I like them so I decided to give it a go and take it apart and clean, repair, polish, fix, paint and put it back together. It worked well - until I ran into oil pressure problem. It simply has no oil pressure.

1. I can start it and it runs OK but no oil pressure light. (That is why i do not mess around with it and shut it down quickly)
2. I have checked the wiring - tested the sensor - everything is fine.
3. Recently I replaced the oil pressure sensor. NO solution there.
4. I got pissed - and ordered oil pump replacement. Nothing Changed.
5. Then one day I raged and reved it up to 6K and Oil Light dissipated. What could that mean - oil pressure only on extreme revs?!?

Until today it is collecting dust as I ran out of ideas what is wrong with it. I would love to fix this last issue and finally get it on the road.

A few things to mention - that might or might not help for your valuable comment / suggestion.

1. When I got it - it felt like it was put together out of non compatible parts. It had a wiring and ECU from newer model. replaced it with correct one.

2. It had no pressure in left piston adn valve was not closing fully - replaced rings and exhaust valve. Compression back to normal.

3. I tried to run it without oil filter as some told that bad filter could cause low pressure. Nothing changed.

4. I have noticed a bit of metal dust when pulling off bottom cover. Since I was filling and draining it on daily basis - happen to notice that.

5. I noticed that cylinder block has some weird holes right next to exhaust hole. First time I started the they made hell of a noise blowing out exhaust from them. I googled and found out that this was for some french models - something to do with emission filtering. I most definately dont have that exhaust unit so I just closed them up with some plates and bolts.

This cylinder block head (top) is my next suspicious item to replace as it feels like oil just simply is not flowing through somewhere (there are no clogs - engine was pulled and washed and cleaned) and this unit seems like one more peace off different bike.

My Bike is:
Suzuki GS500E 1997
15000KM

Thank you for your kind welcome to forum and I hope you will be able to help me with this problem.
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Tard Farm / Re: Last Post Wins - V3
« Last post by yamahonkawazuki on Today at 01:12:57 AM »
yes indeed my friend. now i realised how they did it in the old days. you heated water to bathe from a stove or fire. the commode well i used it indoors by flusing a half gallon of water. it worked. dropping bombs was done elsewhere ( stores etc) but it works. next project is to get the kneecrutch idea moving. found just the pad on ebay was able to examine via photo, it would work with my prosthesis. then finishing up comp buildup. then the last 3r pieces of the cow :). then i figure whats next. perhaps project cub. its still on the radar.
Aaron
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Tard Farm / Re: Last Post Wins - V3
« Last post by Electrojake on Today at 12:18:55 AM »
Hey peteGS... what the hell is the big boat prop???  :dunno_black:

got this at least 44yo pump going again. all is well. :) eating on cheap for a few days to cover electrician cost. but hey im happy :)
Aaron
Nice to have water again, eh?  :D
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Tard Farm / Re: Last Post Wins - V3
« Last post by yamahonkawazuki on January 21, 2018, 10:31:07 PM »
got this at least 44yo pump going again. all is well. :) eating on cheap for a few days to cover electrician cost. but hey im happy :)
Aaron
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General GS500 Discussion / Re: Fuel leaking from airbox drain hose
« Last post by gregjet on January 21, 2018, 08:00:36 PM »
Just a note on the needle and seat ( floats).
Suzukis are noted for leaking at the N+S, but it isn't the needle or a worn seat.
The seat pushes in to the carb body and is sealed by an Oring. The leak often occurs between the O ring and the carb body. This is the cause of the dreaded DRZ400 crankcase full of fuel problem. Often changing the Oring with a suitable fuel resistant replacement will cure the problem. The problem is made worse by Alchohol fuels so a modern alchy resistant ring is the best way to go.
I put a light smear of fuel resistant gasket liquid on the O ring when I put them in ( both sides), which seems to help it last longer.
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Tard Farm / Re: Last Post Wins - V3
« Last post by peteGS on January 21, 2018, 07:53:11 PM »
Bugger! Never the easy/cheap fix is it??

I fixed the airflow issue in the filter box by adding some angled sheet... air was hitting the back wall and bouncing straight back at the fan rather than going around the corner. Much better!

Untitled by starpoint73, on Flickr

Untitled by starpoint73, on Flickr

And lucked out on some pinstriping tape for the tank and front cowl, colour should work nicely.

Untitled by starpoint73, on Flickr
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General GS500 Discussion / Re: Is it normal to use main jet without needle jet?
« Last post by Endopotential on January 21, 2018, 07:30:19 PM »
They are indeed for emission control.  Great write-up here
http://gstwins.com/gsboard/index.php?topic=57529.0

What would we do without the GS Encyclopedia?  Cheers to all who contribute
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Projects / Builds, Racing and Tech / Re: GS500GS?
« Last post by gregjet on January 21, 2018, 06:38:47 AM »
Can't use my GS500 as I paid 1200 for it. Have to find a crappier bike for it I guess.
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General GS500 Discussion / Re: Is it normal to use main jet without needle jet?
« Last post by TGTwin on January 21, 2018, 06:11:23 AM »
I doubt it would be a rev-limiting feature, as it would be far easier to just cut spark at a high rev condition.
I'd say these lines make the bike run rich/lean under certain conditions, maybe deceleration. I'm still putting my money on an emissions control system rather than a safety/performance addition.
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Tard Farm / Re: Last Post Wins - V3
« Last post by yamahonkawazuki on January 20, 2018, 11:59:57 PM »
tbh i believe pumps dead. the valve on side has mnothing. it was empty i activated it and hit outside spigot. nothing except a tiny dribble. hell its older thanme sooooo, but water table here is quite high. so methinks dead pump. woll have to find a [ump person that works on the cheap. at least for a consult.
Aaron
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