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how much power? how much power?
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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 26 Feb 2010
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Post how much power?
How much power is the XT600E supposed to have? I don't mean in HP, i know its 40hp but how is it supposed to feel when accelerating?

The reason I ask is mine feels a bit slow but ok, when accelerating from 0 as fast I can down the tarmac road it feels on 3rd gear like its "just below the frontwheel-lift-border". Even on 1st and 2nd gear its not wild enough to lift the front wheel.

Its not that i actually want to drive on 1 wheel but looking at all those xt's on youtube it seems that they lift the front wheel as easy as anything.. So that just makes me wonder.

Does your x's acceleration fit my description or? Is it really supposed to be like this as a standard untouched XT600E ?
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Old 26 Feb 2010
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When i bought mine, it took some efford to make the wheel, lift, I dont know if I just got better, or the opened up exhasut and stuff like that really helped.

Ride in 1st. af 3000rpm, close the throttle and wack it wide open. That shoild get you in the air, if not, move further back on the seat and try again.

Other things to help is to use the suspension. You can ride at 4000rpm, use the front brake and make the front end dive, and get down to 3000rpm, as the front rises, wack the throttle up. Or you can give it just a quick wack on thr throttle, the suspension will rise, then "fall down" and as the suspension gets up.....Yep, you gussed it, WOT (wide open throttle)


You can also tighten up year're rear spring so it gets firmer, so it wont absord all the action going on when you try to wheelie

Enjoy, and be safe.
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  #3  
Old 26 Feb 2010
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Quote:
Originally Posted by bergspre View Post
How much power is the XT600E supposed to have? I don't mean in HP, i know its 40hp but how is it supposed to feel when accelerating?

The reason I ask is mine feels a bit slow but ok, when accelerating from 0 as fast I can down the tarmac road it feels on 3rd gear like its "just below the frontwheel-lift-border". Even on 1st and 2nd gear its not wild enough to lift the front wheel.

Its not that i actually want to drive on 1 wheel but looking at all those xt's on youtube it seems that they lift the front wheel as easy as anything.. So that just makes me wonder.

Does your x's acceleration fit my description or? Is it really supposed to be like this as a standard untouched XT600E ?

I know what you mean, from your description I think your bike is like it is supposed to be.

I have a TT600RE, it has the same engine as the XT600E 1990-1995, but a little bigger carbs.

It pulls ok, but feels a little “lazy”. Not much throttle response, probably designed to be “user friendly”. From memory my ’82 XT550 I had many years ago had apprx the same total power, but felt much more awake. It built power more quickly. Maybe the difference is in the ignition mapping.

My bike will not wheelie easily. It will wheelie in first on the throttle alone, but not that easily, I need to be aggressive.

In second gear I need to apply front brake aggressively to compress the forks and when the forks rebound, apply throttle and clutch aggressively. Timing is everything, if I don’t get it right the bike wont wheelie.

In third the bike will not wheelie at all.
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Old 26 Feb 2010
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They have a massive flywheel, so they dont build revs that fast, but hey do crawl along in gear, at idle
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Old 26 Feb 2010
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Thanks for replying

It sounds like my xt is "normal" in terms of power
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Old 26 Feb 2010
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It will be right dont worry about it and you can tell it has some torque you're prob just thinking it should be faster because its a 600, if you wind it up through the gears they do move a bit but I wouldnt worry about flipping it
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Old 28 Feb 2010
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Hello!

I am a proud owner of 2 bikes, XT600-2KF from 1989, and 1990, with total rebuilt engines. My bikes should have about 45hp and with a slipon silencer(as i have on the first bike) there should be about 2-3hp more, i hope. Secondary reduction ratio (Chain drive): 39/15 = 2.600 (2KF).
My eldest bike lifts the front wheel rather easily when I drop the clutch after shifted from 1st gear to 2nd gear. IF Im sitting as straight as possible and rev it rather high in 1st. My wheight is about 75kg. The bike is about 150kg. It does the same after im shifting down from 3rd gear to 2nd again, when I give full throttle and drop the clutch after a little practice! When thinking of the engines lengt of life this last manoeuvre maybe isnt just the best thing to do..
But there isnt enough power to lift when its shifted from 2nd to 3rd gear.

/ Henrik
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