Yamaha Sport ATV Forum

Break-in period after rebuild?

This is a discussion on Break-in period after rebuild? within the Yamaha YFM660R Raptor (2001-2005) forums, part of the Performance /Technical category; Quote: Originally Posted by tommy I've been around all types of engines for years and this does work. Ya an easy break in works too, ...


Go Back   Yamaha ATV Forum > Performance /Technical > Yamaha YFM660R Raptor (2001-2005)

Reply
 
LinkBack Thread Tools Display Modes
Old 05-24-2007, 07:12 PM   #21
Senior Member
 
Join Date: May 2005
Posts: 297
View Jasonp's Photo Gallery(0)
Default

Quote: Originally Posted by tommy
I've been around all types of engines for years and this does work. Ya an easy break in works too, but I personally feel this is better. I did this with my raptor and everyone I know that has seen and or ridden it can't beleive it's just a 686. I dont think you'd notice any big differnece on a low horsepower application but when it comes to trying to get everything out of an engine it's the way to go. You dont see top fuel cars doing an easy break in.
Top fuel cars are built far different then your regular old car or fourwheeler engine. .and there only rebuilt every race.
__________________
1998 Warrior. JE 366cc, Mega .450", HD TI valve springs, DR P&P head, DR flywheel, KW SS Oversized valves, TM36-68 Carb, Dyna DFS7P, HD Barnett clutch springs, Earl's custom oil cooler/big bear setup. AC Bumpers, Holeshot's with .190 rims.
Jasonp is offline   Reply With Quote
Old 05-24-2007, 09:12 PM   #22
Primo Member
 
Join Date: Feb 2003
Location: Stafford, VA
Posts: 2,179
Premium Member
View UBETRUN's Photo Gallery(0)
Default

I heat cycle the motor a couple of times to give everything a chance to expand/contract and then give it hell. Rings don't seal right without an engine load, many people knew that that long before someone posted it on the internet.
__________________
"I don't play well with others, it seems others have a problem with losing!"
UBETRUN is offline   Reply With Quote
Old 05-24-2007, 09:44 PM   #23
Senior Member
 
Join Date: Dec 2002
Location: NEW ORLEANS
Posts: 538
View SCHOLLE's Photo Gallery(0)
Default

Quote: Originally Posted by UBETRUN
I heat cycle the motor a couple of times to give everything a chance to expand/contract and then give it hell. Rings don't seal right without an engine load, many people knew that that long before someone posted it on the internet.
Yup!
__________________
TOP SECRET RACING
SCHOLLE is offline   Reply With Quote
Old 05-25-2007, 07:49 AM   #24
Member
 
CamoKVF700's Avatar
 
Join Date: Nov 2006
Posts: 38
View CamoKVF700's Photo Gallery(0)
Default

How do the rings break into the cylinder walls? With cylinder pressure. The pressure actually goes in behind the compression rings and push them out against the cylinder walls. Like said, do a few complete heat cycles and don't baby it. I have never "broke an engine in" in my life and I've never had an engine failure. Your quad will effectively end up with better compression and yes, that makes them faster.
CamoKVF700 is offline   Reply With Quote
Old 05-25-2007, 08:12 AM   #25
Senior Member
 
Join Date: Jan 2005
Location: Shreveport, La
Posts: 136
View tommy's Photo Gallery(0)
Default

Top fuel cars are built far different then your regular old car or fourwheeler engine. .and there only rebuilt every race.

I was making an extreme example. Most 8 and 9 second cars do the same thing without the rebuilds.
__________________
02 Blue Kenz 686 with everything chrome or polished
tommy is offline   Reply With Quote
Old 05-27-2007, 02:43 PM   #26
Senior Member
 
YamahaForever's Avatar
 
Join Date: Jun 2003
Location: Grand Rapids, Michigan
Posts: 1,596
View YamahaForever's Photo Gallery(0)
Default

That's good info. I'm gonna give it hell after my re-build.....not like I'd be able to wait to put the hammer down anyways!
__________________
06- 700 Raptor
Sold-2002 Black Raptor 673
-PRM, Renthal, Trailtech, Dyno Jet, K&N filter kit from Noss, Durablue +2, +4,
Weisco 101mm 11:1 high compression, Hot Rods stage 2 cam, Kibblewhite valves
YamahaForever is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Yamaha ATV Forum > Performance /Technical > Yamaha YFM660R Raptor (2001-2005)


Search tags for this page

yamaha blaster break in procedure

,

how to break in a rhino engine after rebuild

,

2002 grizzly break in after rebuild

,

how to break in a yamaha blaster engine

,

400ex rebuild break in

,

raptor 660 break in

,
02 400ex rebuild break in
,
breaking in 660 raptor after rebuilding it
,
how to break in new rhino 660 motor
,
grizzly 660 rings break in period
,
blaster engine brake in
,
is there a brake in period on a clutch in a raptor 660
Click on a term to search our sites for related topics.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
HELP....how much of a break in period??? bakerboy90660 Yamaha YFZ350 Banshee (1987-Present) 8 12-03-2007 10:51 PM
Break-in after top-end rebuild Extremo01 Yamaha YFZ350 Banshee (1987-Present) 7 09-24-2004 10:59 PM
YZ450F Break in Period... slazes Other Models/Brands 2 09-08-2004 05:23 PM
Rebuild break-in surfntchr Yamaha YFZ350 Banshee (1987-Present) 3 05-28-2004 02:32 PM
banshee disc break rebuild kits? moochdog Yamaha YFZ350 Banshee (1987-Present) 0 06-21-2002 02:13 PM

» Discount Tire
Motosport.com

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:37 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.