"Big" sprocket Q - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

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post #1 of 16 Old 02-21-2016, 01:49 AM Thread Starter
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Join Date: May 2009
Location: Indiana/ Michigan line at the Lake
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"Big" sprocket Q

Apologies for posting this question, probably again.
I did a forum and thread search and found a little bit on it but
no one mentioned the company or part number. The one I have
chosen below is listed as not fitting. I'm hoping that's cuz we need
to trim the plastic cover and make sure the wires are tight against
the block.

I'm wishing to go with a 17 tooth sprocket during the winter teardown
and cleaning, maintenance ritual.
What I found at Amazon.com was PN 33317-17 that peeps were using
on a GS 500, KL 600, and one of the 12 reviewers mentioned having it
on his 1999 KLR 650.

Is this the right one for our 2nd generation countershaft? It looks like the
identical spline pattern. I just received the WRONG one from JT sprockets.

This one is a SunStar which I already like and run. Just wanna go up a
tooth and get one that fits the shaft. I can make spacers if necessary.

Thanks for your time,

Cheeeeeeeeeeeeeeeeeeeeeeap

This is my son, with whom I am well pleased." ----God
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post #2 of 16 Old 02-21-2016, 03:15 AM
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Call me odd but I would just get one from Eagle Mike's. Takes all the worry out of it. Or just stay with a 16 Tooth sprocket as they are only like $8.00 plus shipping of course.
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post #3 of 16 Old 02-21-2016, 06:10 AM
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Not to presume to dictate anyone else's preferences, would a 17-tooth not be pushin' it, clearance-wise? And, is a stock-length chain long enough for that configuration?

Whether the change in final-drive ratio is favorable enough to justify the modification remains in the perception of the modifier.

Again, your bike, your choice of mod!
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post #4 of 16 Old 02-21-2016, 09:47 AM Thread Starter
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This comes from one of my weird "tests".

I had stuck on a Honda Comstar 18" wheel with 37 teeth.
That was a major gearing change mainly like having no
first gear but top speed was still in the mid 90's. It obviously
lost acceleration too. (Learned a little about gearing vs power vs
wind resistance vs comfort.)

That buzzy feeling has me reaching for the imaginary 6th gear still
after almost 19,000 miles.

Jester,
I forgot Mike and am literally ordering it after posting this. I have the man's
doohickey kit and risers too so I'm no stranger to the man and he was great
on the phone. Never even thought of trying the Eagle website. Silly me.
(Also, it was 30 bux + 7 shipping)

My permanent but changeable ratio is probably going to stay at 17/42.
Totally street gearing but it will eliminate some tight single track only.
Also as a function of age I've not climbed a stairwell in two years on the
motorcycle. Wheelies are only little poppers here and there. I'm guessing
those loooooong, straight Indiana farm roads are still gonna get shredded
pretty easily. Don't blaze new trails anymore either.

Damocles,
I have two chains, both long enough at stock length. The 42t gives up a
little slack too. Chains aren't new but not worn much. Clearance requires
some dremel trimming of the plastic cover. The three wires don't get touched
but it's close up there. (from research, not experience) The 16t was the best
mod I did and easily adapted to.
Added the 42t rear three years later and still the feeling remains to drop the rpms
a bit more. This has been a slow and thought out process in small increments.
Probably not for everyone converting to 95% street but fits my style while retaining
the ability to explore most generic ATV trails n' dirt roads. Losing the knobby
rear and going with 90/10 rubber. Didn't order that yet but am today. (probably
the Gripster with the center line to roll upon.)

Just the next step in aging but too soon for a sidecar. LOL

This is my son, with whom I am well pleased." ----God

Last edited by CheapBassTurd; 02-21-2016 at 12:37 PM.
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post #5 of 16 Old 02-21-2016, 12:06 PM
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I know what you mean I am running 16/40 sprockets and feel I could go a little more might try a 17/40 one day
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post #6 of 16 Old 02-21-2016, 01:57 PM
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Jt has a 38 rear showing but no 17 front.http://www.jtsprockets.com/catalogue/model/1132
Regards....justjeff

It's not a Tractor....It's a LOCOMOTIVE!! Chugga Chugga
Woooo WOOOOO!!!!!
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post #7 of 16 Old 02-21-2016, 02:09 PM
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Glad to hear as I almost did not mention Eagle Mike's as at first I felt that you have been around long enough to know about his products. I believe he also has instructions for the installation of the 17 Tooth front sprocket. As a side note I also opted for the Eagle Mfg. Prevailing Torque Countershaft Nut.

As for the questions since I was also looking at going with a 17 tooth front sprocket. Yes the factory chain will work with the 17 tooth front sprocket. And yes one will have to do some clearance work to the front chain guard to gain room for the larger sprocket.

At this time I opted for the 16 Tooth front sprocket mainly due to cost. As it was only $8.00 at Rocky Mountain ATV & MC. As my 96 KLR needed lots of other things and probably still does lol. But I like the OP I will probably not be doing any crazy stuff in the future so the mainly street gearing will suit my riding style just fine as well and maybe knowing the gearing will not allow me to do crazy stuff will keep me out of trouble. Maybe

Last edited by JesterGrin_1; 02-21-2016 at 02:12 PM.
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post #8 of 16 Old 02-21-2016, 02:42 PM
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Quote:
Originally Posted by CheapBassTurd View Post
Jester,
I forgot Mike and am literally ordering it after posting this. I have the man's
doohickey kit and risers too so I'm no stranger to the man and he was great
on the phone. Never even thought of trying the Eagle website. Silly me.
(Also, it was 30 bux + 7 shipping)
Damocles,
I have two chains, both long enough at stock length. The 42t gives up a
little slack too. Chains aren't new but not worn much. Clearance requires
some dremel trimming of the plastic cover. The three wires don't get touched
but it's close up there. (from research, not experience)

Just the next step in aging but too soon for a sidecar. LOL
CBT,
If I was going to install a 17 tooth front sprocket, I would pull the wires Out of their stock location.
Lengthen the green Neutral wire and run the wires 'Straight-Up' from the grommet, outside of the plastic sprocket cover. Just cut that little protrusion off of the top front of the sprocket cover. And then route wires across to the main engine case bolt and tab.

It wouldn't take but a small gravel stone to jam the wires between engine cover and a 17T sprocket.

Why do so many engines have their wires in harms way like this???

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #9 of 16 Old 02-21-2016, 04:29 PM
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Join Date: Jan 2011
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Quote:
Originally Posted by pdwestman View Post
CBT,
Why do so many engines have their wires in harms way like this???
Damned good question. I've never liked the arrangement of those wires right next to the sprocket.



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post #10 of 16 Old 02-21-2016, 08:48 PM Thread Starter
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Great Q about the wiring location when there's a whole engine block to exit from.

A rock piece that goes into the cover is likely to get "pulled through" by the chain no
matter the sprocket tooth count. Stoopid, or smart if you charge 80 bucks an hour to
repair anomalies like this. Or, the ignition wire bundle wrapping around the steering
head next to the stops. Pinch point.

Dunno why Mike slipped my mind. I taught him everything he knows (cough). LOL

While playing at Amazon.com it hadda listing/ ad for a 17t countershaft sprocket for
KLR fitment, but there was a 16 in the part number. Sure enuff, a 16 showed up.
Nice. I already have two. Kept it for a Christmas gift for brother in law ('07) cuz
he's street only. I emailed Amazon in December yet the website still has the 16t
listed as a 17.

Yet another tire thread coming next........Blasting the crap outta the tax check.
Naturally, it's on farkles and mama's rustic decor. Blowin' it on our hobbies.

CheaperThanYourBoss

This is my son, with whom I am well pleased." ----God
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