I finally have my 17 tooth front sprocket installed. Initial observations:
1. Noticeably lower RPM's across the entire shift pattern
2. Acceleration about the same, didn't notice any difference
3. Not sure on gas mileage yet
4. Top end speed has increased, used to be 100 mph, now, 105 mph and I really haven't pushed it yet
I got my sprocket from Motorcycle Accessory Warehouse (http://www.mawonline.com/):
Part number: 44598
Price: $15.95
Description: JT Sprocket 520 Front 17 Teeth Mfg.#: JTF51217
(http://www.usdrews.com/images/gdrew/gstwin/jtf512FrontSprocket.jpg)
Installation was pretty easy, I only ran into one issue. The sprocket cover was glued closed from all the chain lube the previous owner used. I don't think they ever cleaned the chain, just kept lubing it over and over again. Once the cover was removed, I scraped tons of black nasty sticky stuff out. Really gross.
For the record, I've got an '04 GS500F.
Did you need to buy a new chain or does your old one still fit? I am thinking about getting a bigger front sprocket.
dude this post is from 3 years ago. and no you shouldnt need a new chain for a 17 tooth. its only 1 tooth from stock
Quote from: Chanse on August 17, 2009, 04:15:51 PM
dude this post is from 3 years ago.
+1. Poor forum etiquette :nono:
I think you guys should cut the guy some slack! he did exactly what we always tell people to do, and used the search.
and no, the stock chain will be just fine, as long as it is in good shape.
Quote from: Chanse on August 17, 2009, 04:15:51 PM
dude this post is from 3 years ago. and no you shouldnt need a new chain for a 17 tooth. its only 1 tooth from stock
LOL I am going to find one from 4 years ago just for you dude!
Yama finds them from like EONS ago! LOL.
Guess we can like never be satisfied like you know post a new question and we like say "search" then someone like searches and post in like an old topic and people like say " Dude that's three years old"
It's like a Catch-22 you know!
Now I've got the blonde out of me yup it will fit just fine!
Mary
Well at least I answered him while bashing him... LOL
So do Ihave to get a front sprocket specially designed for a GS500F or is there a 17 tooth sprocket of another bike I can use?
I don't know if anyone's ever looked into sprockets from other bikes, but in general I'd stick with a new one made for the GS. You don't know how used the one is you could find for another bike, and if you get one that's too worn it will just wear on your chain, and that will need replaced too, costing you way more than the $5-10 you saved on the sprocket, not to mention if it's half used, you'll only get half of the life out of it anyway.
On a side note. I thought the GS was geared pretty high, I'm surprised his top speed actually increased with a taller gearing. I wonder if the original poster was going from stock to the 17t, or if he had changed the rear in the past.
Quote from: galahs on November 17, 2009, 05:34:27 AM
So do Ihave to get a front sprocket specially designed for a GS500F or is there a 17 tooth sprocket of another bike I can use?
you could get a 17 tooth for a 95+ gs500e, I guarantee it will fit :thumb:
About 2 weeks ago i commented on a GS Buggy post from like 2001 or something. haha
Im just wondering if any gixxer, sv, bandit etc front sprockets fit a 2005 gs500f
I tried my local dealer but they don't do 17 tooth front sprockets, and the places online I have found either don't wat to ship to Australia or want to charge $50 US dollars for shipping + the cost of the sprocket.
I did a search for JTF51217 and got
http://www.denniskirk.com/jsp/product_catalog/Product.jsp;jsessionid=XACJUMI5T0DFPLA0WTVSM4VMDK0NCIV0?skuId=8098217&store=Main&catId=&productId=p80982&leafCatId=&mmyId=
It says the sprocket fits
Part 8098217 fits the following machines:
1996 Kawasaki EN500C Vulcan Ltd
1997 Kawasaki EN500C Vulcan Ltd
1998 Kawasaki EN500C Vulcan Ltd
1999 Kawasaki EN500C Vulcan Ltd
2000 Kawasaki EN500C Vulcan Ltd
2001 Kawasaki EN500C Vulcan Ltd
2002 Kawasaki EN500C Vulcan Ltd
2003 Kawasaki EN500C Vulcan Ltd
2004 Kawasaki EN500C Vulcan Ltd
2005 Kawasaki EN500C Vulcan Ltd
2006 Kawasaki EN500C Vulcan Ltd
2007 Kawasaki EN500C Vulcan Ltd
2008 Kawasaki EN500C Vulcan Ltd
2009 Kawasaki EN500C Vulcan Ltd
1987 Kawasaki EX500A
1988 Kawasaki EX500A
1989 Kawasaki EX500A
1990 Kawasaki EX500A
1991 Kawasaki EX500A
1992 Kawasaki EX500A
1993 Kawasaki EX500A
1994 Kawasaki EX500D Ninja 500
1995 Kawasaki EX500D Ninja 500
1996 Kawasaki EX500D Ninja 500
1997 Kawasaki EX500D Ninja 500R
1998 Kawasaki EX500D Ninja 500R
1999 Kawasaki EX500D Ninja 500R
2000 Kawasaki EX500D Ninja 500R
2001 Kawasaki EX500D Ninja 500R
2002 Kawasaki EX500D Ninja 500R
2003 Kawasaki EX500D Ninja 500R
2004 Kawasaki EX500D Ninja 500R
2005 Kawasaki EX500D Ninja 500R
2006 Kawasaki EX500D Ninja 500R
2007 Kawasaki EX500D Ninja 500R
2008 Kawasaki EX500D Ninja 500R
2009 Kawasaki EX500D Ninja 500R
1985 Kawasaki KL250 KLR
1986 Kawasaki KL250 KLR
1987 Kawasaki KL250 KLR
1988 Kawasaki KL250 KLR
1989 Kawasaki KL250 KLR
1990 Kawasaki KL250 KLR
1991 Kawasaki KL250 KLR
1992 Kawasaki KL250 KLR
1993 Kawasaki KL250 KLR
1994 Kawasaki KL250 KLR
1995 Kawasaki KL250 KLR
1996 Kawasaki KL250 KLR
1997 Kawasaki KL250 KLR
1998 Kawasaki KL250 KLR
1999 Kawasaki KL250 KLR
2000 Kawasaki KL250 KLR
2001 Kawasaki KL250 KLR
2002 Kawasaki KL250 KLR
2003 Kawasaki KL250 KLR
2004 Kawasaki KL250 KLR
2005 Kawasaki KL250 KLR
1990 Kawasaki ZR550B Zephyr
1991 Kawasaki ZR550B Zephyr
1992 Kawasaki ZR550B Zephyr
1993 Kawasaki ZR550B Zephyr
1984 Kawasaki ZX550A GPz
1985 Kawasaki ZX550A GPz
1996 Kawasaki ZX750P Ninja ZX-7R
1997 Kawasaki ZX750P Ninja ZX-7R
1998 Kawasaki ZX750P Ninja ZX-7R
1999 Kawasaki ZX750P Ninja ZX-7R
1996 Suzuki GSF600S Bandit 600S
1997 Suzuki GSF600S Bandit 600S
1998 Suzuki GSF600S Bandit 600S
1999 Suzuki GSF600S Bandit 600S
2000 Suzuki GSF600S Bandit 600S
2001 Suzuki GSF600S Bandit 600S
2002 Suzuki GSF600S Bandit 600S
2003 Suzuki GSF600S Bandit 600S
2001 Suzuki GSX-R1000
2002 Suzuki GSX-R1000
2003 Suzuki GSX-R1000
2004 Suzuki GSX-R1000
2001 Suzuki GSX-R600
2002 Suzuki GSX-R600
2003 Suzuki GSX-R600
1988 Suzuki GSX-R750
1989 Suzuki GSX-R750
1998 Suzuki GSX-R750
1999 Suzuki GSX-R750
2000 Suzuki GSX-R750
2001 Suzuki GSX-R750
2002 Suzuki GSX-R750
2003 Suzuki GSX-R750
1994 Yamaha YZF600R
1995 Yamaha YZF600R
1996 Yamaha YZF600R
1997 Yamaha YZF600R
1998 Yamaha YZF600R
1999 Yamaha YZF600R
2000 Yamaha YZF600R
2001 Yamaha YZF600R
2002 Yamaha YZF600R
2003 Yamaha YZF600R
2004 Yamaha YZF600R
2005 Yamaha YZF600R
2006 Yamaha YZF600R
thanks for that.
Galahs, I got a 17 tooth for a GS from my local dealer (Mullumbimby) in a few days, love the gearing.
Quote from: gregvhen on November 19, 2009, 02:13:49 PM
thanks for that.
Please don't take this as being a jack ass cause I know it may come off this way but aren't you looking to mod for stunting? You would want a smaller front sprocket (less teeth) to increase torque for wheelies. Sorry if I missed the point of your post.
-Jessie
I didnt start this post. and yea i went up in the back. same thing as down front.
Quote from: the mole on November 19, 2009, 03:00:52 PM
Galahs, I got a 17 tooth for a GS from my local dealer (Mullumbimby) in a few days, love the gearing.
Do you know what brand sprocket it was?
Sunstar 33317 sprocket also fits the GS500, costs a bit more than JT.
http://sunstar-mc.com/searchresults.aspx?All=True&DD0=STREET&DD1=SUZUKI&DD2=GS500&DD3=2001-02
GS500/E/F sprockets all the same from 94 on.
Now I just have to find a way to buy it in Australia. :embarrassed:
Quote from: galahs on November 21, 2009, 05:58:58 AM
Do you know what brand sprocket it was?
We moved house since then, but I just found the packet it came in..."Jomthai Asahi Co Ltd" It claims to be Japanese steel, but made in Thailand. Has done 18,000km now, no problem. I like the gearing better with the 17.
Local bike shop ordered it in, took a few days to arrive and cost $24.50.
I noticed you can get Sunstar 33317 sprockets on http://www.amazon.com and http://www.powersportsuperstore.com and they ship worldwide for a reasonable sum.
I did a search for JTF51217 at www.powersportsuperstore.com and I noticed that the product that came up was for a 1994 - 2006 Yamaha YZF-600
Yamaha YZF600R-W <<<<< 520 Chain Conversion
(http://img340.imageshack.us/img340/6165/jtf512.jpg)
Suzuki GS500 F-K4,K5,K6,K7,K8,K9
(http://img267.imageshack.us/img267/9828/jtf516.jpg)
Seems the sprockets are interchangeable :thumb:
Wow!
I am really enjoying this 17 tooth mod.
It has made high speed highway riding so much easier.
The bike doesn't feel like it is being over worked anymore at 100km/h . And the taller gearing hasn't really effected low down acceleration much at all. If anything it makes 1st gear more usable as you don't have to change out of it quite so quickly.
The bike feels much more relaxed, I wish I had this mod when I did my 12,000km 3 week trip.
I would definitely recommend this mod for anyone who does more highway than city driving. Over 80km/h (50mph) it really shines.
I'm glad you like it. I am on the other side though, I went down to 15 and love it.
But I do mostly city riding. Each to his own, right? :thumb:
I have 15t and love it for all-around riding, if I did less freeways I would definitely get 14t though. BUT if I was going on along trip all freeway I would for sure go with 17t. honestly I dont think the 16t was good for any thing, it seemed to always be in the wrong gear.
It seems sprocket changes are one of those mods that actually make a noticable change to the bike.
I probably rate it 3rd of my list of mods now. 1. Front Springs, 2. Upgraded Headlight globe, 3. sprocket
Like I said I do alot of highway riding and this new sprocket makes me keep looking at the tacho and smiling when I notice it never goes above 6,000rpm anymore :thumb:
Can you make this mod from 15 to 17 and keep the original chain or should you do all together??
I do the Woodford to Minto trek every day and have considered the change but was warned off with 'to hard in 1st' comments, good to hear the opposite from some one who has used it.
Old man
Yes, you can use 17T front sprocket with a standard 110 link chain, only moves axle forward .148"
http://gstwins.com/gsboard/index.php?topic=44849.0
For those who've done this mod. Correct me here please...
With a 17th I need less revs for the same speed. This is a given.
At highway speeds - 5th and 6th gear - 6th is pretty well totally gutless at anything under 4.5k - which in Aust is 90kph or 56mph. At 100 to 110 kph (5 to 5.5k) sixth is fine. 120 and the bike sits around 6k.
How much lower are the rpms then? Are now forced to ride in 3rd (say 60kph / 38mph) whereas it was doable in 4th before?
For instance, regardless of the speed, riding in 4th at 3k is somewhat lugging on the engine. So you ride in 3rd instead, right? So is that what's happening with this mod? A tendency to now ride one gear down because of engine lugging if you rode at the old speeds in the old gearing?
Trying to get a feel / idea of how the bike powers with the mod.
Michael
100 kph = 62.5 mph. Stock geared GS with std size tires turns about 4730 rpm at 60 mph. With a 17T front the engine would turn 16/17x4730=4452 mph. Not a real big change.
Same completely stock GS in 5th gear would be turning .961/.851x4730=5341 rpm at 60 mph or 16/17x5341= 5026 rpm with a 17T front in 5th at 60 mph. I used to run my 97 GS with a 15T front in 5th gear on the freeways when running with big twin friends to match their roll-ons, 16/15x5341=5697 rpm at 60 mph. Pulled nice.
You can figure the rest:
(http://img.photobucket.com/albums/v443/jcp8832/GS500gearing-rpms.jpg)
On our first trip to the Smoky Mtns in 2001 I had a MT90-17 K491 rear touring tire on my 97 GS so 24.1(dia oem Excedra)/26.18(dia K491)x4730=4354 rpm at 60 mph. Less than the 4452 rpm above of a 17T front with std tires and it wasn't bad, recall I only downshifted to 5th a few times on the freeways for upgrades. And we didn't go 60 mph on the freeways, that's just a common reference point. Nice economy rpm I think, we still have the 6 speeds when needed.
Thx gsJack. :thumb:
Yep. I can figure the rest.
Michael
Just happened to think my 02 GS has a 150/70 Roadrider on it now that has a 25.8" diameter so it's just about the same as a standard tired GS is with a 17T front. My 24.1/25.8x4730=4418 rpm compared to the 17T with standard tires that was 4452 above at 60 mph. No big deal but I do get a solid 60 mpg all around summers on my 02 with no noticeable loss of fun.
Michael, basically you are about one gear lower than before most of the time. I never use 6th now around town, so there are fewer changes to do which is nice, but I have an 'overdrive' for the highway. I've never tried a full comparison, but I'd guess the top speed would be higher in 5th than 6th on my bike with me and a top box on it. I just like the more relaxed touring revs.