Front Sprocket Gunk?

kaybray · December 17th, 2012, 07:57 AM

Hello. This is rather new to me, but i'm sure familiar with all of you. I use Motul chain clean and lube. I lube my chain regularly, but notice the front sprocket has so much black gunk....me thinks I should clean it out (2009 250r around 6000 miles).
Can someone recommend an effective degreaser or any other spray I can use? Is this difficult to do? Someone must know of an easy method to clean this? Thanks guys.

k-os · December 17th, 2012, 08:11 AM

Mineral Spirits works great for de-greasing and cleaning. Kerosene works just as well.

rojoracing53 · December 17th, 2012, 08:27 AM

Quote:

Originally Posted by k-os

Mineral Spirits works great for de-greasing and cleaning. Kerosene works just as well.

^this in a spay bottle + this

Motofool · December 17th, 2012, 09:20 AM

Quote:

Originally Posted by kaybray

......Can someone recommend an effective degreaser or any other spray I can use?.....

http://www.webbikeworld.com/r3/motor...chain-cleaner/

Personally, I love the old trusty paint brush plus kerosene.

kaybray · December 17th, 2012, 10:11 PM

thanks. how about the cover? is that easy to come off or other components have to be removed too?

rojoracing53 · December 17th, 2012, 10:26 PM

Quote:

Originally Posted by kaybray

thanks. how about the cover? is that easy to come off or other components have to be removed too?

Get a marker and mark the shift lever location the use a 10mm wrench and remove the shifter at the motor shaft(it going through the cover you want to remove). Then use an 8mm socket to remove the three bolts that hold on the cover, WARNING be sure not to lose the TWO dowl pins that locate the cover.

It's super easy

bdavison · December 18th, 2012, 12:18 PM

Yeah, I just take the cover off, and use a plastic paint scraper to scrap all the crud out, and then slap it back on there. No sense in getting spotless with it...its just gonna crud up again.

CZroe · December 20th, 2012, 09:34 PM

Took my cover off and pulled out a ton of gunk with a rag then flooded it with WD-40.

Jono · December 20th, 2012, 11:25 PM

Quote:

Originally Posted by CZroe

Took my cover off and pulled out a ton of gunk with a rag then flooded it with WD-40.

+1

Liquidtoon · December 27th, 2012, 07:09 PM

I use gojo hand cleaner and add most of bottle to a bucket. stir it into just enough water to submerse the cover. let it sit, over night if you can. then a little rubbing with rag and rinse does great. can toss chain in too, sprocket if you're super ambitious. Just be sure to re-lube it when done.

Old Guy on a '08 · January 1st, 2013, 10:41 PM

Back in the day, I used "GUNK" on gunk and the rest of the bike to, chrome, engine. Back then it came in a quart can and you sqirted a good bit in a cup and used a brush like the one pictured above. Today you can get it in a spray can.

It nails grease, it's got a wonderful smell and you can rinse it off with cold water.

kaybray · April 8th, 2013, 09:29 AM

cleaning was no problem, but the cleaning solvent erased the marked location of the clutch lever. It shifts ok, but feels different than last year. That lever position simply raises and lowers the position that's all right? so, really it's just rider preference whether lever is higher or lower?

Liquidtoon · April 8th, 2013, 10:32 AM

Yes with-in reason, to low or high makes miss shifts or accidental ones more likely. It is very easy to adjust, loosen the two nuts and rotate the bar then snug the nuts back down. Takes about 5mins and makes makes it more comfortable.

A link for pictures and better details

ninjawing · November 2nd, 2013, 01:47 AM

hi peepz!
so i been reading this thread and i have same problem as most...with a little twist. i have a ton of crap build up at my front sprocket, and me want to get it clean.
HOWEVER
the sprocket cover bolts and shifter is removed... but the cover is not moving and inch. its stuck like someone clued it on there

does anyone have some tips for me how i could get it off

red5 · November 2nd, 2013, 06:19 AM

If you removed the three bolts and the little lever from the shift rod, then dowel pins are stuck. Try using WD-40 to loosen them. As you look at the cover, one is on the bottom right corner and the other is top left, just below that round hole/divot in the cover. Spray between the cover and the engine case and it should get in there.

December 17th, 2012, 07:57 AM	#1
kaybray ninjette.org newbie Name: rick Location: chicago Join Date: Dec 2012 Motorcycle(s): 2009 ninja 250r Posts: 4	Front Sprocket Gunk? Hello. This is rather new to me, but i'm sure familiar with all of you. I use Motul chain clean and lube. I lube my chain regularly, but notice the front sprocket has so much black gunk....me thinks I should clean it out (2009 250r around 6000 miles). Can someone recommend an effective degreaser or any other spray I can use? Is this difficult to do? Someone must know of an easy method to clean this? Thanks guys.

January 1st, 2013, 10:41 PM	#11
Old Guy on a '08 Chris Name: Chris Location: Charlotte, NC near UNCC Join Date: Aug 2012 Motorcycle(s): BLACK!!! '08 250R Posts: 957	Back in the day, I used "GUNK" on gunk and the rest of the bike to, chrome, engine. Back then it came in a quart can and you sqirted a good bit in a cup and used a brush like the one pictured above. Today you can get it in a spray can. It nails grease, it's got a wonderful smell and you can rinse it off with cold water. __________________________________________________ Some roads are too good to waste on four wheels! Riding in a car is like watching a movie... Riding on a motorcycle is like being in one....

November 2nd, 2013, 06:19 AM	#15
red5 ninjette.org guru Name: Chris Location: Chattanooga Join Date: May 2012 Motorcycle(s): 09 ninja 15.256 Posts: 263	If you removed the three bolts and the little lever from the shift rod, then dowel pins are stuck. Try using WD-40 to loosen them. As you look at the cover, one is on the bottom right corner and the other is top left, just below that round hole/divot in the cover. Spray between the cover and the engine case and it should get in there. __________________________________________________ "We're not always doing business, but we're always open." "For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring." Carl Sagan

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
15 tooth front sprocket	sidekick10121	1986 - 2007 Ninja 250R Tech Talk	3	March 16th, 2014 01:04 PM
Front sprocket change help!	RedNinja21	2008 - 2012 Ninja 250R Tech Talk	35	April 12th, 2012 09:28 AM
Front Sprocket	Archerzz	1986 - 2007 Ninja 250R Tech Talk	66	June 29th, 2011 10:22 AM
Front sprocket, help!!	cbowman78	2008 - 2012 Ninja 250R Tech Talk	34	November 14th, 2010 10:52 AM
front sprocket	miniguns167	2008 - 2012 Ninja 250R Tech Talk	4	September 27th, 2009 11:59 AM

December 17th, 2012, 08:11 AM	#2
k-os ninjette.org sage Name: Andy Location: Sheboygan, WI Join Date: Dec 2008 Motorcycle(s): 1988 Honda Hawk NT650, 1989 Honda Hawk NT650, 1997 GSXR750 Track Bike Posts: 890	Mineral Spirits works great for de-greasing and cleaning. Kerosene works just as well.

December 17th, 2012, 10:11 PM	#5
kaybray ninjette.org newbie Name: rick Location: chicago Join Date: Dec 2012 Motorcycle(s): 2009 ninja 250r Posts: 4	thanks. how about the cover? is that easy to come off or other components have to be removed too?

December 18th, 2012, 12:18 PM	#7
bdavison Wartown, USA Name: Bryan Location: Warner Robins, GA Join Date: Nov 2009 Motorcycle(s): 2009 Ninja 250R SE, 2007 Ninja 650R, and assorted other bikes Posts: A lot.	Yeah, I just take the cover off, and use a plastic paint scraper to scrap all the crud out, and then slap it back on there. No sense in getting spotless with it...its just gonna crud up again.

December 20th, 2012, 09:34 PM	#8
CZroe CPT Falcon Name: J.Emmett Turner Location: Newnan, GA Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.	Took my cover off and pulled out a ton of gunk with a rag then flooded it with WD-40.

December 27th, 2012, 07:09 PM	#10
Liquidtoon ninjette.org member Name: Josh Location: Sacramento, Ca Join Date: Jul 2010 Motorcycle(s): 09 Ninja 250r Posts: 215	I use gojo hand cleaner and add most of bottle to a bucket. stir it into just enough water to submerse the cover. let it sit, over night if you can. then a little rubbing with rag and rinse does great. can toss chain in too, sprocket if you're super ambitious. Just be sure to re-lube it when done.

April 8th, 2013, 09:29 AM	#12
kaybray ninjette.org newbie Name: rick Location: chicago Join Date: Dec 2012 Motorcycle(s): 2009 ninja 250r Posts: 4	cleaning was no problem, but the cleaning solvent erased the marked location of the clutch lever. It shifts ok, but feels different than last year. That lever position simply raises and lowers the position that's all right? so, really it's just rider preference whether lever is higher or lower?

April 8th, 2013, 10:32 AM	#13
Liquidtoon ninjette.org member Name: Josh Location: Sacramento, Ca Join Date: Jul 2010 Motorcycle(s): 09 Ninja 250r Posts: 215	Yes with-in reason, to low or high makes miss shifts or accidental ones more likely. It is very easy to adjust, loosen the two nuts and rotate the bar then snug the nuts back down. Takes about 5mins and makes makes it more comfortable. A link for pictures and better details

November 2nd, 2013, 01:47 AM	#14
ninjawing ninjette.org newbie Name: Joe Location: south africa Join Date: Dec 2012 Motorcycle(s): kawasaki Posts: 6	hi peepz! so i been reading this thread and i have same problem as most...with a little twist. i have a ton of crap build up at my front sprocket, and me want to get it clean. HOWEVER the sprocket cover bolts and shifter is removed... but the cover is not moving and inch. its stuck like someone clued it on there does anyone have some tips for me how i could get it off