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d2jsp Forums > Off-Topic > Sports Coliseum > Motor Sports & Cars > 1983, Yamaha Yz490 > Already Selling
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May 27 2014 05:04pm
Weeeeelll,

Burned 10 liter on this bike and I understand it's not for me :D

It's a yz490cc 1983, free air 2-strokes engine.

I'm not ready yet !



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May 27 2014 05:20pm
You made a Topic awhile ago with purchasing this bike correct??

Whys it not for you if you don't mind me asking? She's mean isn't she? :P
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May 27 2014 05:44pm
Quote (IB0T @ May 27 2014 06:20pm)
You made a Topic awhile ago with purchasing this bike correct??

Whys it not for you if you don't mind me asking? She's mean isn't she?  :P


yeah exactly, bought it like 1 month ago and rode 10L of gaz maybe not more haha.

This thing is crazy, either it goes on one wheel or either it spins the back wheel.

even just the sound is a terrific thing.

If I can't sell it for what I paid I might just keep it as it's really clean.


I just need to replace/fix the rear brake (pads or the drum) and it'll be a brand perfect new bike.
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May 27 2014 06:16pm
not a real fan of 2 strokes, power band is fun but they aren't reliable
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May 27 2014 06:49pm
Quote (TSL @ May 27 2014 07:16pm)
not a real fan of 2 strokes, power band is fun but they aren't reliable


Yeah, but not like 4-strokes would be more reliable.

Much much more pieces and rotating things.

But anyway, in my opinion, any machine made to be beaten up is not so much reliable haha.

Any cr500/yz500/kx500 in your garage or neighborhood guys ?
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May 27 2014 07:40pm
yea but you can rebuild a 2 stroke in like 15 minutes lol. Dont think i ever want to ride a widow maker lol

This post was edited by Krnboi12345 on May 27 2014 07:41pm
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May 28 2014 10:29am
Quote (IHateDuriel @ May 27 2014 09:49pm)
Yeah, but not like 4-strokes would be more reliable.

Much much more pieces and rotating things.

But anyway, in my opinion, any machine made to be beaten up is not so much reliable haha.

Any cr500/yz500/kx500 in your garage or neighborhood guys ?


4 strokes are a hell of a lot more reliable.. even more so if you do proper maintenance i.e. clean air filter and oil every ride, valves set every season etc.
And they make them reliable because they are beaten on, not really sure where your opinion is coming from, but anyway.
I've had 3x 2 stroke bikes and 2 5x 4 strokes and I guarantee you the 4 strokes are more reliable, hence why 2 strokes are rarely sold now.
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May 29 2014 04:54pm
It's weird. After like 15mins of riding, the cluch become really closer, I mean it's like always 50% in even with full clutch handle in.

Could it be the adjustment with the vibration that comes loose ? Or does it have somethin to do with the engine become more warm ?

When it's hot, in 1st gear, the bike wants to go forward and i I don't give it a little gaz, it will stall.

I have fear to tighten it and than the clutch slips all time.
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May 29 2014 06:59pm
Quote (IHateDuriel @ May 29 2014 05:54pm)
It's weird. After like 15mins of riding, the cluch become really closer, I mean it's like always 50% in even with full clutch handle in.

Could it be the adjustment with the vibration that comes loose ? Or does it have somethin to do with the engine become more warm ?

When it's hot, in 1st gear, the bike wants to go forward and i I don't give it a little gaz, it will stall.

I have fear to tighten it and than the clutch slips all time.



Sounds like your friction fibers are expanding when they get hot. That is a tell tale sign they are shot.



Quote (TSL @ May 28 2014 11:29am)
4 strokes are a hell of a lot more reliable.. even more so if you do proper maintenance i.e. clean air filter and oil every ride, valves set every season etc.
And they make them reliable because they are beaten on, not really sure where your opinion is coming from, but anyway.
I've had 3x 2 stroke bikes and 2 5x 4 strokes and I guarantee you the 4 strokes are more reliable, hence why 2 strokes are rarely sold now.



2 strokes have a lower overall operating cost if you are capable of doing your own top end. A 4 stroke might go 200 hours without a rebuild but when it does go it is 3-4x more expensive than a 2 stroke. A 2 stroke that doesn't get it's nuts wrung off every time it's ridden will last a very long time in it's own right. There is a lot more to do on a 4 stroke to keep it running right.
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May 29 2014 09:52pm
Quote (FMX_89 @ May 29 2014 07:59pm)
Sounds like your friction fibers are expanding when they get hot.  That is a tell tale sign they are shot.



Ok well, I'm not abusing clutch or slipping, so would it mean it's poor material used?
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