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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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15 Jan 2008
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Location: UK
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Yamaha XT600E
Hi all,its good to find such a useful and interesting off-road biased site  .
I have an XT600E,year 2000,and i have been told it might have some form of restriction on it.I have checked all of the obvious things but wonder if anyone knows of any form of electronic ignition restrictions like a rev limiter wire or similar!!!
Any help appreciated,thanx.
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15 Jan 2008
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Join Date: Aug 2007
Location: Sax, Spain
Posts: 914
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Hiya
Hiya &  to the HUBB...
In What way do you mean restricted? they arent real powerfull to start with!
if you want a FAST bike, get rid......
If you want a bike that will cruise happily at 65-70mph and will return 60mpg you have it.
If you want a bike that will go just about ANYWHERE,, you got it!
If you want a bike that will give you more smiles per mile and actually handle a damn site better than a traily should... you got it.
I regularly ride mine ( 1989 vintage 2KF XT600) beyond what I think it is capable of! It actually goes round the twisty roads here in Spain at a rate of Knots that has to be seen to be believed! The tyres are Heiddenau catspaw Trail and although iffy in the Wet.... are great in the Dry ( I haven't found the limit yet, although I do try... they have slid a little but never enough to make me scared..  )
What is the top end speed on your Bike? mine tops out at just a shade over 90 ( 150 Kmh) although speed isnt what the XT is about it will outhandle a lot of other bikes on the twisty roads.
Martyn
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18 Jan 2008
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Hi,good to meet you  . I dont mean faster, i mean gruntier-torquier ! A few mates have ridden it and all said it should be and feel much more torquier and suggested it may be restricted in some way...
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18 Jan 2008
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Mechanical rather than Electrical?
Hi,
Maybe some previous owner has had it restricted to 33 BHP for the first two years of their licence - could be something on the throttle control cable or even in the carb.
After that, it may need servicing and or adjusting?
__________________
Dave
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18 Jan 2008
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right, heres the simple fix!
Quote:
Originally Posted by manxtaj
Hi,good to meet you  . I dont mean faster, i mean gruntier-torquier ! A few mates have ridden it and all said it should be and feel much more torquier and suggested it may be restricted in some way... 
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The standard gearing is 15 tooth gearbox 39 tooth Rear wheel (15/39) 2.6
last week I changed mine. I put a 14 Tooth Gearbox and kept the 39 rear so the gearing is now (14/39) 2.78
Now that dont seem a lot, and it isnt, it is roughly equal to putting a 43 tooth rear sprocket on, it means the Bike will not have the same top end ( theoretiacally) all i noticed is 500rpm difference higher when cruising.
BUT now it accelerates like a ROCKET.... bags more grunt,  , even the odd little wheelie for fun and is a little 'buzzier' like riding a small 2 stroke.... Ha ha!....
Martyn
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18 Jan 2008
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Location: Isle of Sheppey, Kent, England, UK
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Quote:
Originally Posted by Martynbiker
The standard gearing is 15 tooth gearbox 39 tooth Rear wheel (15/39) 2.6
last week I changed mine. I put a 14 Tooth Gearbox and kept the 39 rear so the gearing is now (14/39) 2.78
Now that dont seem a lot, and it isnt, it is roughly equal to putting a 43 tooth rear sprocket on, it means the Bike will not have the same top end ( theoretiacally) all i noticed is 500rpm difference higher when cruising.
BUT now it accelerates like a ROCKET.... bags more grunt,  , even the odd little wheelie for fun and is a little 'buzzier' like riding a small 2 stroke.... Ha ha!....
Martyn
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Now that is a good idea Martyn!
__________________
Neil
My Website: http://www.kentfallen.com
Mint Red Yamaha XT600E (1999) 5,000 miles
Blue Yamaha XT600E (2001) 11,000 miles
Mint Black Honda XBR500(1986) 8,000 miles
Volvo C30 R-Design 1.8 Sport (2008)
"Brace Yourself Darling! This Might Hurt a Bit..." 
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12 Feb 2008
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Join Date: Feb 2008
Location: RS, Brazil
Posts: 61
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Quote:
Originally Posted by Martynbiker
The standard gearing is 15 tooth gearbox 39 tooth Rear wheel (15/39) 2.6
last week I changed mine. I put a 14 Tooth Gearbox and kept the 39 rear so the gearing is now (14/39) 2.78
Now that dont seem a lot, and it isnt, it is roughly equal to putting a 43 tooth rear sprocket on, it means the Bike will not have the same top end ( theoretiacally) all i noticed is 500rpm difference higher when cruising.
BUT now it accelerates like a ROCKET.... bags more grunt,  , even the odd little wheelie for fun and is a little 'buzzier' like riding a small 2 stroke.... Ha ha!....
Martyn
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I have thought about doing that!
The problem I have is that here in the mountains of S. Brazil my buddies want to cruise at 80 kph which is I think 55 mph and I have to either keep it revving high in 4th gear or  in 5th gear which is bad for the gear box.
Does the 14/39 ratio allow you to cruise at 55 mph in 5th gear?
Last edited by Bamaboy; 14 Feb 2008 at 15:53.
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12 Feb 2008
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oh yes!
Quote:
Originally Posted by Bamaboy
I have thought about doing that!
The problem I have is that here in the mountains of S. Brazil my buddies want to cruise at 80 kph which is I think 55 mph and I have to either keep it revving high in 4th gear or  in 5th gear which is bad for the gear box.
Does the 14/39 ratio allow you to cruise at 55 mph in 5th gear?
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not a problem........ best mod and cheapest I have done to the Bike.
far easier than splicing a few links into the chain for a bigger rear sprocket and quicker to change too..... took me about 20 mins.
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