GS500F 2008 burning oil and trembling | Page 2 | GTAMotorcycle.com

GS500F 2008 burning oil and trembling

ViperZ said:
People, if you're so 'adventurous' and start doing something to your bike, at least download the SERVICE MANUAL for your bike.

GS500:
Oil Change: 2.6L
Oil Change + Filter: 2.9L
Overhaul Engine: 3.2L
Click to expand...
It wasn't the OP that did it.

@dayao: Yeah, if you just top it up, and dont add more after the oil runs through the filter then it'll seem like it lost some. Not a whole lot though. It wouldn't be a full dipstick amount though.
Also, is the bike the OP has the one in your signature that was sold?
 
Sabex said:
It wasn't the OP that did it.

@dayao: Yeah, if you just top it up, and dont add more after the oil runs through the filter then it'll seem like it lost some. Not a whole lot though. It wouldn't be a full dipstick amount though.
Also, is the bike the OP has the one in your signature that was sold?
Click to expand...

Oh no, sold mine to someone else. Exact same bike though so I felt comfortable helping the dude out with whatever I can. I'm still unsure about the "buzzing/vibrations" he's feeling. I test rode it for him and felt just the same as mine...atleast it's nothing that jumped out at me.
 
Dayao12 said:
Oh no, sold mine to someone else. Exact same bike though so I felt comfortable helping the dude out with whatever I can. I'm still unsure about the "buzzing/vibrations" he's feeling. I test rode it for him and felt just the same as mine...atleast it's nothing that jumped out at me.
Click to expand...

Alright. Question about the one in your signature though. IT says it was -1+2, with a 15T/46T. Isn't the stock 16/39, making it -1+7 instead?

Ans as for the trembling.. I'm not sure. But considering he likes to shift around 4-5000RPM it could just be the vibrations from the bike itself. Since 110 in 6th gear would be about 5360RPM on stock sprockets.

@OP: try taking it up to a higher RPM in lower gear (shift at 8k RPM in each gear, cycling through them all: while staying within the speed limit. Once you hit 4th gear, 8000RPM is about 125km/hr, so I'd suggest not going up to 8k in 5th or 6th unless you want to go 145/165km/hr. and see if it gives the same trembling as you feel at 110.
I know once my GS hits the powerband it feels completely different, and vibrates a lot more. Around 6000RPM I found to be the sweet spot where it starts to vibrate much faster. Any acceleration up until about 6000RPM feels pretty smooth on the bike, then it begins to vibrate. And anything below about 5000 feels like it lugging.
 
Last edited:
tricky said:
You said you put a K&N air filter on it.. did it come with a restricter? If it didn't, you'd need a rejet, and would currently be running pretty lean, which might account for it's odd behaviour
Click to expand...

How does that work? a little detail will help
 
Freak said:
How does that work? a little detail will help
Click to expand...

When you change anything to do with the air flow of the bike, you have to rejet the carburetors to adjust the air/fuel mixture. I'm not sure if the K&N drop in-filter for the GS comes with a restrictor or if you have to get one on your own... it will choke the air flow so you don't need to rejet. You'll have to double check if you have one.. I've never used the drop-ins, I have a lunchbox air filter so I can't really help you there.

GSTwins wiki is your best friend when you have any questions
http://wiki.gstwins.com/index.php?n=Upgrades.AirFilter

And from this article: http://wiki.gstwins.com/index.php?n=Upgrades.Rejetting-LeanOrRich?

Typical Lean Conditions:
- Poor acceleration; the engine feels flat.
- The engine won't respond when the throttle is snapped open, but it picks up speed as the throttle is closed. (A too-large main jet also mimics this symptom.)
- The engine runs hot, knocks, pings and overheats.
- The engine surges or hunts when cruising at part-throttle.
- Popping or spitting through the carb occurs when the throttle is opened. Or popping and spitting occurs through the pipe on deceleration with a closed throttle.
- The engine runs better in warm weather, worse in cool.
- Performance gets worse when the air filter is removed.
Click to expand...
 
Sabex said:
Alright. Question about the one in your signature though. IT says it was -1+2, with a 15T/46T. Isn't the stock 16/39, making it -1+7 instead?
Click to expand...

Hahah! Hmm..I think you're right! Never really noticed that before! Must've been a typo =P
 
Are we talking about a brand new one month old bike, with its first 1000km on it?
You don't want to do that on synthetic oil, friend, you need to use the original dinosaur oil it came with for the first 1000km.
During this period, the piston rings will mate with the cylinder walls and the bike will stop smoking.
(Except yours might not.)
The stock bike is very lean anyway, and though the K&N is great and flows more air, this will not help your already lean mixture.
Buddy called it earlier, with a very good description of lean symptoms.
A short-term solution would be to hose the filter down real good with the red oil, don't laugh, it's true.
I'm guessing your bike has carburetors? A simple and inexpensive DynoJet jet kit wiil make your bike run right, make it run sweet.
Although your bike should begin to run nicer once the real hot weather rolls in, you should still get that fixed, it's better for the motor.
Even the bone-stock bike (with stock air filter) will run better with the jet kit,
Regards
 
im not sure what you guys are talking about, my gs doesnt burn any oil. :p but then, ive only got like 18,000k on it. you got something like 24,000?
were you noticing any gear change issues? on other suzukis ive ridden in the past, when the oil was low, the first sign i got was really tough gear changes especially finding neutral at a stand still.

as for the trembling or vibration at high speeds, or not so high speeds, does it happen when you just rev the engine at a stop in neutral? rev it with in gear with the clutch pulled in? i ride this thing to the red line as often as i can, and its a fun little bike. if you shift below 5-6k rpm and are expecting power, then it will just complain. maybe you are bogging the engine down asking too much at too low an rpm?

do you drive a manual car? i ask because if you want to shift to 3rd, and hit 5th by accident, you will normally get a rumble and complaint from the engine. same thing?

anyways, good luck and ride safe to another gs!
 
Yeah the gs behaves like a 250 cc bike when its under 6000 rpm.

If you want to rejet your carbs i am doing mine and can help you out.

If you want the gs to be more responsive in first and second gear at lower rpm then go with a 15 tooth front sprocket and an ignition advancer.

I rode a GS that had both installed and its a VERY Noticable difference.

The parts will cost you about $100 for that set up and again i can help you install it.
 
Thanks for the reply. Its not burning oil, it wasn't filled up properly. I used trembling for lack of a better word to explain my situation, vibration is more in line with what i meant. I still feel the bikes really vibrates a lot when taken above 5 RPM on lower gears and makes a lot of sound. I guess its just me not accustomed to heavy bikes.
 
interesting. you say 5000 rpm, but is that moving rpm or just revving while stopped? you can try to isolate the issue to engine or wheels/suspension by revving up the motor while moving and stopped, and then get up to speed when you feel the vibrations and ride the clutch for a while and see if its the ride or the motor.
 
You must log in or register to reply here.

Back
Top Bottom