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Discussion Starter · #1 ·
on a 2003 636, im going 115 on the freeway and my rpms are at 11,000, it seems kinda of high for me but then again im a beginner, what kind of rpms should i be at in 6th gear going 115? and i know bigger sprockets effect top speed. with that said how many teeth are on a factory front and rear sprockets on a 2003 636?
 

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The "im a beginner" and "im going 115 on the freeway" are the bits that disturb me.
 

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well, if his speedo is 10% off, hes really only doing 103.5! but still, youre a beginner and things happen fast at 100+, even at 80+ they happen fast. slow it down and take it easy, dont wanna see you end up as a greasy stain on the pavement.

but, as for what RPMs you should be at at that speed, i dont know honestly. i dont have a 636 but it seems like it might be a little high. did you buy the bike used and if you did, have the sprockets been changed?
 

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My 05' 636 usually runs about 1000 rpm under my speed when I'm in sixth (I mean when I'm doing 60mph it runs at about 5000 rpm, 80mph=7000rpm) so it's probably about right, but I couldn't tell you for sure at that speed.
 

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Discussion Starter · #9 ·
Thanks for the knowledge and input guys, i know this is off topic but is synthetic oil recommened on these bikes? And how often should I change the oil? Any recommended brand of filter or oil?
 

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I usually change mine at the beginning of the season. Depending on how much you ride, that should be good for the season. I used the Suzuki synthetic stuff I got from the dealership (way overpriced. Get some from autozone and you'll probably save twenty bucks). I also just used a k&n oil filter that you can get online for like $12.
 

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i change every 3000 miles or so, and you dont have to use synthetic but IMO its the best you can get. i use Mobil 1 Racing 4t, which in tests seems to sit right under Amsoil, and is easy to get (Autozone or Advance) rather than getting your oil shipped. also, i wont touch a K&N oil filter, theyre cheap junk IMO, and the only incentive is the nut on the end but its really not that hard to get a regular filter off. i use either the Bosch filters (3300 for my bike, might be the same for yours as well) or Purolator PureOne PL14612. depends on where i go to get my oil and filter...Autozone is Bosch, Advance is Purolator. take your pick...both filters are used by many people on these types of bikes, and theyre pretty cheap (6 bucks).

you can also use the Supertech oil filters from walmart for about 2 bucks...theyre a decent filter. stay away from Fram though.

good luck!
 

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Discussion Starter · #12 ·
Now do the motor and and tranny share oil? Will running sythetic effect the clutches, is there some sort of friction modifier that need to be added?
 

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Now do the motor and and tranny share oil? Will running sythetic effect the clutches, is there some sort of friction modifier that need to be added?
Some do, some don't. Get the one that doesn't have any friction modifier or it will mess with the clutch. It should say something right on the bottle.
 

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Best Oils To Use In Your Bike

Engine oil : The commercial grade oils are clearly superior to the mass market oils. For the best protection in your bike or car, use Shell Rotella Synthetic, available at Wal-Mart in blue containers . For the best petroleum oil you can buy, get Shell Rotella T, Mobil Delvac 1300, or Chevron Delo 400, available at any auto parts store. On the back of most oil cans is a circular stamp with the certification. Avoid oils that say "energy conserving" in the bottom half of the donut. These oils contain friction modifier additives that could cause clutch slipping over time. All XXw-20 and XXw-30 oils are energy conserving, and should not be used in your motorcycle. Don't buy any oil additives like STP or Slick-50. Here's several pages All About Oil justifying these conclusions.

The Recommended Synthetic Oils
Shell Rotella Synthetic
5w-40 Delvac 1 Synthetic
5w-40 Mobil-1 SUV/Truck Synthetic
5w-40 AMSOil AMF Synthetic
10w-40 Golden Spectro Synthetic
10w-50 Motul 5100 Synthetic
10w-40 Mobil-1 Synthetic
15w-50 Mobil-1 MX4T Synthetic

The best synthetics are: (in no particular order)

Shell Rotella-T Synthetic 5w-40 (blue container, not white), gallon at Wal-Mart.
Mobil Delvac-1 5w-40 (grey container, not black), gallon at Petro stations, gallon at Farm and Fleet.
Mobil-1 SUV 5w-40, qt anywhere.
AMSOil AMF 10w-40 synthetic motorcycle oil, about qt.
Golden Spectro Supreme, (no price).
Motul 5100 Ester, (no price).

Mobil-1 automotive oils all contain small amounts of moly - about 100 to 200 ppm. This can cause clutch slippage in some motorcycles. I've only heard of this being a problem in Honda Shadows.

For temperatures below -40, I strongly recommend either Mobil-1 0w-30 or the Canadian Shell 0w-40 Rotella. At these temperatures, your car is your life. Using cheap or incorrect oil is risking your life.

For temperatures below -55c, -65f, stay home. Really.

The Recommended Petroleum Oils

Chevron Delo 400 15w-40
Delvac 1300 15w-40
Shell Rotella 15w-40

The best petroleum oils are: (in no particular order)

Chevron Delo 400 15w-40 (blue container) gallon at any auto parts store, gallons at Costco.

Mobil Delvac 1300 15w-40 (black container) gallon at any auto parts store, gallons at Sam's Club.

Shell Rotella-T 15w-40 (white container) gallon at Wall-Mart or any auto parts store, gallons at Sam's Club.

If you live in another country, you'll have to do a bit of research to decide on an oil. Generally, any oil certified for use in a late model Volks wagon or Mercedes turbo diesel is a good choice. Another good idea is to go to a truck stop and ask the truckers about brands. Rotella is marketed all over the world, but in other countries it's called Rotella or Rimola or Helix Ultra, and the formulation may be a bit different, depending on local climate and preferences. It will likely also be a lot more expensive than it is here.
 

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For the oil, I like Amsoil because it comes right to my front door. I don't have to go get it, and I know "the store" will always have it in stock, ready to be left on my front porch.:D
As for the MPH question, the bike might be geared to peak at the end of a straight on a certain track- which, by the way, is where these speeds should be attained. Find a track school you can sign up for, and they'll probably have all the gear you'll need to ride fast on a track.
YouTube - The Road's No Place to Race TVC

Ride safe.;)
 

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"im a beginer" and "Im going 115" scared me too lol....but triple digits are fun, but NO place to be.

And to what was said above a ways before all the petrol problems like in the gulf, a lot can happen at 100+, 80+, 60+, to pulling out of your driveway. I almost smoked the rear quarter panel on a white buick that decided to turn left in front of me. I pushed left, leaned left, and went left then pushed right, leaned right, and went right. I then proceeded to grab a fistful of break, and gave the man a peice of my mind. He still didnt notice me :( I was even wearing a reflective jacket with my brights on....

But for the petrol problem, its USUALLY best to stick with the same oil you put in...and using the SAME oil every time. I bought my bike used and one of the first questions after I Bought it was what oil he used, which was 15w-40 mobil 1.
 
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