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gearing chart

This is a discussion on gearing chart within the Yamaha YFM660R Raptor (2001-2005) forums, part of the Performance /Technical category; any one have a gearing chart Thanks...


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Old 12-07-2007, 11:55 AM   #1
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Default gearing chart

any one have a gearing chart
Thanks
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Old 12-07-2007, 06:31 PM   #2
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check out the motosport catalog--they have the gearing chart that shows what sprockets are what ratios--the website doesnt have it, but if u get a catalog that has it in it
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Old 12-11-2007, 09:40 AM   #3
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I got this one off sidewinder awhile back but is not on there site anymore. Hope this helps.

If some of the numbers look small all you do is divide the # of teeth on the back sprocket by the # of teeth on the front sprocket.

[img][/img]
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Old 12-11-2007, 09:46 AM   #4
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http://www.bluetraxx.com/tech/tuning...ratio_calc.htm
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Old 12-11-2007, 12:32 PM   #5
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Thanks everyone
The bluetraxx one dosn't work
Merry Chirstmas
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Old 12-11-2007, 01:13 PM   #6
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Quote: Originally Posted by diggerzmound
http://www.bluetraxx.com/tech/tuning_tools/gearratio_calc.htm
have you found that to be accurate ?
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Old 12-11-2007, 01:27 PM   #7
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It works in Internet Explorer and its the most accurate calculator on the vast expansion of bluetraxx.
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Old 12-11-2007, 06:40 PM   #8
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Quote: Originally Posted by diggerzmound
It works in Internet Explorer and its the most accurate calculator on the vast expansion of bluetraxx.
so on my stock 05 i'm going to be adding the full yosh to, with proper jetting and open air box and going to a 14 tooth it says i will gain 6 mph top speed ?? i'm at 73 now.

and if so ,what will happen to my low to mid gains with the 14 tooth.
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Old 12-12-2007, 04:12 AM   #9
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You will lose some acceleration. You'll have a higher top speed, but it will take you a little longer to get there.
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Old 12-12-2007, 07:51 AM   #10
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Quote: Originally Posted by screamin96
you will lose some acceleration. you'll have a higher top speed, but it will take you a little longer to get there.
is anyone pretty sure, i would gain 5mph on top ?

will it take me as long to get there as my stock ? thanks everyone
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Old 12-12-2007, 05:27 PM   #11
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Well ya, that's the idea. Gearing changes change speed.

Front sprockets are cheap....buy one and find out. :)
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Old 12-12-2007, 08:52 PM   #12
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Quote: Originally Posted by bigsled
Quote: Originally Posted by screamin96
you will lose some acceleration. you'll have a higher top speed, but it will take you a little longer to get there.
is anyone pretty sure, I would gain 5mph on top ?

will it take me as long to get there as my stock ? thanks everyone
bigsled is this motor stock or does it have some work? Are we talkin flat ground or up a hill?

Like screamin96 said it is a cheap experiment but there is more to the equation than just a sprocket. If you can pull 5th gear to the rev limit now, after you change the sprocket and hit the rev limit again you will have gained 5 more mph. Good luck.
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Old 12-13-2007, 09:25 AM   #13
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Most people I know gear for acceleration not top end. Most people race from point A to point B. I haven't seen anyone going for top speed anywhere I've ridden.You have to think if someone can do 60+ in 300ft and your geared for top end(slower acceleration) it would probably take you atleast a 1/4 mile to catch up with them if they kept going.
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Old 12-13-2007, 01:16 PM   #14
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Quote: Originally Posted by tommy
Most people I know gear for acceleration not top end. Most people race from point A to point B. I haven't seen anyone going for top speed anywhere I've ridden.you have to think if someone can do 60+ in 300ft and your geared for top end(slower acceleration) it would probably take you atleast a 1/4 mile to catch up with them if they kept going.
well alot of the times on the state trails here in mn/ wi , we are riding side by side down fire/ logging roads, going to the next trail turn off, cruseing in 5th than we pin it alot. we are all at the same speed but our one buddy w/ a piped yfz is 5 mph more than us and always flies by when we are all in 5th. we have used the gps many times
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Old 12-13-2007, 04:12 PM   #15
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Quote: Originally Posted by orangeforce
Quote: Originally Posted by bigsled
Quote: Originally Posted by screamin96
you will lose some acceleration. you'll have a higher top speed, but it will take you a little longer to get there.
is anyone pretty sure, I would gain 5mph on top ?

will it take me as long to get there as my stock ? thanks everyone
bigsled is this motor stock or does it have some work? Are we talkin flat ground or up a hill?

Like screamin96 said it is a cheap experiment but there is more to the equation than just a sprocket. If you can pull 5th gear to the rev limit now, after you change the sprocket and hit the rev limit again you will have gained 5 more mph. Good luck.
ok orange. thanks. yes it is flat paved road. all stock 05 660.
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