Honing a 2 Stroke

palmerleif · 01-16-2008, 12:53 PM

Hello everybody, Im new to the online forums, and I have a question about my bike. I've got a 2000 CR 250 that I've had for 2 seasons now, and even though its still running good I bought a Wisco piston kit, as a preventative measure. I was wondering if it is necessary to hone the cylinder, if there isn't any noticeable scratches? If so whats the best way to hone it? And any other tips before I switch it out would be great.
-Thanks for the help

tigmaster · 01-16-2008, 01:36 PM

yes, hone no matter what but i would suggest taking it to a local machine shop or power sporting shop and and having them measure the bore to make sure that things are not too worn down causing a hone to be pointless and requiring either a bore or new cylinder. in technical words, have the mic the cylinder for excessive runout. but as a general rule of thumb, any time you even so much as take the piston out of the cylinder you should hone it. however must people do not do this. also, replace any gaskets you take off. you dont even see scratches normally when a hone is required, however after a hone, you will see a nice crosshatch pattern.

JThompson · 01-17-2008, 08:29 PM

Tig hooked ya up with the answer so I will just welcome you to the forum.

Thanks for joining looking forward to reading your posts

tigmaster · 01-17-2008, 08:30 PM

thats what im here for and welcome as well.

jc--07 · 08-26-2008, 05:52 PM

what does honeing mean?

turtlemann14 · 08-26-2008, 06:35 PM

its basically scratching the cylinder with tiny grooves so that the ring will seat
they make special tool to do it

jc--07 · 08-27-2008, 09:40 AM

is it a good thing to do ?

Wopstar · 08-27-2008, 09:40 AM

But be carefull because honing will take material off the cylinder walls and can cause excessiv episton to cylinder clearance if you hone it too much or hone it multiple times.

jc--07 · 08-27-2008, 09:46 AM

does it offer any sort of gain ?

Wopstar · 08-27-2008, 09:48 AM

I allows the rings to seat and it cleans the cylinder wall up. If you don't hone the cylinder when you replace rings or pistons they rings will not seat properly and you will have issues.

01-16-2008, 12:53 PM	#1 (permalink)
palmerleif C Rider Join Date: Jan 2008 Location: Portland, OR & Corvallis, OR Posts: 1	Honing a 2 Stroke Hello everybody, Im new to the online forums, and I have a question about my bike. I've got a 2000 CR 250 that I've had for 2 seasons now, and even though its still running good I bought a Wisco piston kit, as a preventative measure. I was wondering if it is necessary to hone the cylinder, if there isn't any noticeable scratches? If so whats the best way to hone it? And any other tips before I switch it out would be great. -Thanks for the help

01-16-2008, 01:36 PM	#2 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	yes, hone no matter what but i would suggest taking it to a local machine shop or power sporting shop and and having them measure the bore to make sure that things are not too worn down causing a hone to be pointless and requiring either a bore or new cylinder. in technical words, have the mic the cylinder for excessive runout. but as a general rule of thumb, any time you even so much as take the piston out of the cylinder you should hone it. however must people do not do this. also, replace any gaskets you take off. you dont even see scratches normally when a hone is required, however after a hone, you will see a nice crosshatch pattern. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

01-17-2008, 08:29 PM	#3 (permalink)
JThompson Administrator Join Date: Aug 2006 Location: Bellingham WA Posts: 4,631	Tig hooked ya up with the answer so I will just welcome you to the forum. Thanks for joining looking forward to reading your posts __________________ Tired of ads? Become a member for an almost ad free site! Also we give away monthly prizes just for posting! Register today! Looking for places to ride! Want to review a riding area? Check them out! PRE-ORDER MOTOTIPS Stickers now. Help keep mototips running! Get your order in today! Buy NOW! Special Discounts for members only! Check out our new discount forum for retailers offering to help you save money! Mototips Discounts

01-17-2008, 08:30 PM	#4 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,240	thats what im here for and welcome as well. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

08-26-2008, 05:52 PM	#5 (permalink)
jc--07 A Rider Join Date: Aug 2008 Location: Edinburgh Posts: 588	what does honeing mean? __________________ bikes are gooooooood

08-26-2008, 06:35 PM	#6 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,718	its basically scratching the cylinder with tiny grooves so that the ring will seat they make special tool to do it __________________ If it does not move at first, get a bigger hammer!! Myspace Kawasaki z1 900 1973 rake extended, big bore block 1127cc, carbs, straight pipe exhaust, coils, and new paint job Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

08-27-2008, 09:40 AM	#7 (permalink)
jc--07 A Rider Join Date: Aug 2008 Location: Edinburgh Posts: 588	is it a good thing to do ? __________________ bikes are gooooooood

08-27-2008, 09:40 AM	#8 (permalink)
Wopstar A Rider Join Date: Sep 2006 Location: Lake Havasu Arizona Posts: 858	But be carefull because honing will take material off the cylinder walls and can cause excessiv episton to cylinder clearance if you hone it too much or hone it multiple times. __________________ Stickers Add Horsepower!!

08-27-2008, 09:46 AM	#9 (permalink)
jc--07 A Rider Join Date: Aug 2008 Location: Edinburgh Posts: 588	does it offer any sort of gain ? __________________ bikes are gooooooood

08-27-2008, 09:48 AM	#10 (permalink)
Wopstar A Rider Join Date: Sep 2006 Location: Lake Havasu Arizona Posts: 858	I allows the rings to seat and it cleans the cylinder wall up. If you don't hone the cylinder when you replace rings or pistons they rings will not seat properly and you will have issues. __________________ Stickers Add Horsepower!!

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