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My personal GS sob story

  • Thread starter Thread starter DevanJones
  • Start date Start date
D

DevanJones

Guest
I guess I just wanna complain a little bit.

So in march I bought my first bike. I bought a 79 Suzuki gs850 for 1000 dollars. I went and got my learners permit and sold a bunch of xbox games to have money to buy a helmet (I'm a 19 year old barista, I don't make much money). I learned to ride on that bike and rode the hell out of it all the way until the middle of june.

One day in the middle of June I was in Sumner, pulled up to a stop sign and when I pulled away it started running really odd. Almost non-rhythmically (I'm not a mechanic, can you tell?). It seemed like one cylinder was firing real low. Well as long as I kept the RPM's high It was okay so I rode it home and parked it.

I checked my gas tank, petcock, etc. The easy stuff I knew to check. Well that didn't do it so I checked with shops and no one could fix my bike within the next two weeks and I met a guy here on the forum who would help me clean my carbs. Well clean them we did and the bike was still running poorly. I told the mechanic I had found previously and he said it still seemed like it was my carbs and that if I didn't blow them out with compressed air, then I didn't do it right so I had him clean them again.

He said he found stuff in there and so I hooked them back up and the bike ran better, but still not good enough to ride. It didn't idle well and didn't accelerate from a stop without way too much clutch as well as not being able to get above 5,000 rpms and losing power uphill with the throttle all the way maxed out.

Well I took it back to the shop in Enumclaw and did my two weeks of waiting before the guy could look at my bike. He went over everything. He checked plugs, swapped out coils, cleaned the carbs AGAIN, but he couldn't get it right.

So he checked compression one cylinder running at 90 with the others at 120ish but they would switch up so sometimes a cylinder that was at 120 would go as low as 75. So he put some oil in there and the compression got much healthier which he says means the rings are probably bad.

So he estimates it at a grand or more to fix a motorcycle I bought for a grand. I can't afford that much to fix the bike and the mechanic said fixing it would be akin to beating a dead horse anyways. But then he rode it around to see if I could ride it home at least and not have to borrow a truck and a trailer and he said (and I quote) "Well ****, I don't know what to tell you. It seems to be running alright now." He said maybe I can ride it around and just keep a spark plug wrench and an extra plug on me for a season or two while I save money to buy a new bike. So my bike is just haunted by a malicious ghost I guess.

Now I'm bored, out a bunch of money and I don't even have skyrim anymore since I sold it to buy a helmet.

http://qkme.me/3qj1xg

End of complaining
 
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Did YOU replace the intake manifold O-rings yet? Do that, at least.
Also add an ENTIRE 15 ounce can of Berryman's B-12 Carb/injector cleaner to a tank of fuel.
See if those improve things. ;)

Eric
 
I did both of those things. I bought the carb O-Ring kit and the intake boot O-Rings you guys recommend on here as well as run berryman's through, although not a whole can at once.
 
Wait. (Bear with me, I'm not mechanically inclined) Are the intake boot O-rings and manifold O-Rings different?
 
I got the O-Rings and bolts from cycleorings and put all the new o rings in on the carbs and the boots from the carbs to the engine, but not from the airbox to the carbs.
 
Are the carb to airbox boots intact and in good condition?
Try an ENTIRE can of the Berryman's in your fuel tank. ($3.25 ish, everywhere auto parts are sold including Mao-Mart)

Eric
 
All my boots are more rubbery than hard plastic-like. I'll grab a can of berryman's.
 
Are the carb to airbox boots intact and in good condition?
Try an ENTIRE can of the Berryman's in your fuel tank. ($3.25 ish, everywhere auto parts are sold including Mao-Mart)

Eric

Just to add...I like a whole can of Berrymans when your tank is about 1/4 full or less. We are trying for optimum concentration here. Hope it works!
 
Keep at it, you will sort it out sooner or later, I agree with Eric, I don;t think you have shot rings, well not to the extent that they would make the bike unridable.
If the rings were that far gone, it would smoke something terrible.
Have you tried doing plug chops, plugs are great story tellers.
Ride it and when it is playing up, shut it down, pull the plugs and see what they look like, if you not sure what you are looking for, take pics of them and post here, the guys will soon decipher the story for you.
Chin up, it is not as bad as it seems, part of owning an old bike is the maintenance it needs, give it that and they really are great bikes.
 
I'll try the plug chop tactic and post pictures, since I have no idea what to look for.
 
I don't have any advice for you, except to not give up and try to do as much work yourself because you will save a ton of money.

Best of luck.
 
I don't have a ton of experience, but if you need a hand, I'm pretty good at figuring stuff out. At the very least, you wouldn't be the only one stumped :D
 
Never go to that mechanic again IMO. What he told you makes no sense.

It's good to have some help nearby, 4 ears and eyes are better at sorting things out.

You can pick up a compression tester at Harbor Freight or AutoZone for pretty cheap. This $10 Harbor Freight special is good enough for some home tests.

You might have bad compression in a cylinder, but not a compression gremlin that runs around the cylinders. If you really had compression that wandered across cylinders, I'd wonder about sticking valves, not rings. For $10 you can test your own compression and know for sure what is going on.
 
I don't have a ton of experience, but if you need a hand, I'm pretty good at figuring stuff out. At the very least, you wouldn't be the only one stumped :D

There it is. 2 heads better than 1 when you're starting out. Go for it and fix it and you'll be proud.
 
Pull the valve cover and adjust the valves.. its easy once you get the hang of it. You may need a new valve cover gasket if the old one is a pain. Spray the new one with WD-40 for easy future removal.. Also ensure that you have performed both a bench sync and vaccum sync on the carbs. Cleaning them doesn't mean anything if you do not sync them.

Note***** I had a slightly bent valve that gave me a compression gremlin. It would seal then rotate enough to loose compression then rotate and seal again. Replaced valves and rebuilt top end for 450 in parts and called it a day.

best of luck.
 
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I was thinking valves also. Bent or tight valves could lead to compression issues. Adjust the valves for starters and finish a carb sinc. It may be all it takes.
 
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