Engine Brake-in
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rider929
Engine Brake-in
I did a search but didn't see anything related to this question. Who can tell me what the proper brake-in is for a 1980 GS850G? I ask this because I have one that has only 67 miles on it. Being almost 30 years old I don't want to risk damage to the motor. What should I limit the RPM's to and for how long etc. Any info would be greatly appreciated.Tags: None -
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Change the oil & filter first, replace the oil with a GOOD, NON synthetic oil & go beat the crap out of it, ride it up to redline in the first 3 gears a couple of dozen times. After 600 miles, pull the valve cover, re-torque the head, check & if needed adjust the valves, & change the oil & filter again. Then ride it, love it, race it, cruise it, polish it, & enjoy it! Just don't CRASH it!!! Ray.Comment
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Guest
EWWW, I forgot all the important stuff.Change the oil & filter first, replace the oil with a GOOD, NON synthetic oil & go beat the crap out of it, ride it up to redline in the first 3 gears a couple of dozen times. After 600 miles, pull the valve cover, re-torque the head, check & if needed adjust the valves, & change the oil & filter again. Then ride it, love it, race it, cruise it, polish it, & enjoy it! Just don't CRASH it!!! Ray.
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sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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My opinion is to ride the bike in the city for a while and use the throttle liberally. Worst things you can do is hold a light, steady throttle or lug the engine; vary engine load and rpm. Use the engine but I don’t think there is any real need to beat on it.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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I'm with Ed
Ride somewhere where you can vary rpms to load and unload the rings. You can run it up to redline occasionally or down shift for engine braking
Ring seating is the main issue. Not much break in with a roller crank
Then service it at 600 miles at let r rip!1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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A nice brisk ride up one of my local canyons works really well.
On and off the throttle, constantly varying RPM, what's important is a lot of open and closed throttle. Do what the Mototune guy says.
For you flatlanders, go out at about three thirty in the morning when there are no cops or traffic and act like you are blasting up my local canyon.
The only reason the owners manuals say to baby the engines is so stupid kids don't all dump their fast new bikes before they even get them home from the dealership.Comment
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I've seen that mototune link before and while there is some value to the approach, I don't buy into it fully. Vary the rpm and load, and work your way up the rpm range as you accumulate mileage, and I believe you will be good to go.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Bruin
I have heard this from a few people. The slight increases in max RPM as you get more miles on the bike is so the newb can slowly learn to ride. If you know what your doing already, happily thrash away, the bike can take it.Comment


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