New vn900 custom breakin - Page 2 - Kawasaki Vulcan Forum : Vulcan Forums
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post #11 of 21 (permalink) Old 05-30-2016, 04:44 PM
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Popped 2 new motors in my snowmobiles years back,Granted they were 2 stroke,But I was young and trying to break them in way to fast,lesson learned
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post #12 of 21 (permalink) Old 05-30-2016, 04:49 PM
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I agree with the others, MOM Kawi is a very good guide line for everything. Main thing is to warm up the motor,don't settle in a RPM for long, work your way up to the higher RPMs. The idea is to wear/break in all the wear surfaces ASAP, this includes, stretch and rings. You should be taking the RPMs up to 6000+ as soon as the break in allows.

Back in "the day" we used to apply a little choke, bring up the RPM to wear the rings, followed by no throttle to wash the rings with oil, repeat every 2-3 seconds.Run that process for a 1/2 hour stationary,then an 1/2 hour+ on the street. Change the oil after a hour or two. Then again after 500miles with normal choke. After 1-2 thousand miles drive em as you want.

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Last edited by Rider 50; 05-30-2016 at 04:54 PM.
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post #13 of 21 (permalink) Old 05-30-2016, 05:51 PM Thread Starter
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got the bike on saturday and love it, and right now im riding it somewhat how the user manual says but not 100%
like i will shift up in the area it tells me to not exactly 20 30 40 etc.
so far i have put about 80 miles on it and loved every second

2015 Vulcan900 Custom
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post #14 of 21 (permalink) Old 05-30-2016, 06:15 PM
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I just purchased a new Custom and I'll just break it in riding it the same way that I will be always riding it.I am not an aggressive rider to begin with.

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post #15 of 21 (permalink) Old 05-30-2016, 09:42 PM
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@revrider what happened and how soon?
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post #16 of 21 (permalink) Old 05-30-2016, 09:47 PM
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@Bandit the bike is not in yet and you have the voltmeter and tachometer ready!! why so desperate? :}:}








*I know you had 900s before, congrads on the new one! you're gonna love it!! :}
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post #17 of 21 (permalink) Old 05-30-2016, 10:13 PM
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Quote:
Originally Posted by durox View Post
@revrider what happened and how soon?
Went to 700cc in my old mxz,brand new motor,went like a bat out of hell ,Dumb,nothing seated,crank froze up,bearings shot,not long 1/2 hour?other one burned up piston,rings cyl wall,had that wot for 1/2 mile ,also not broke in yet,
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post #18 of 21 (permalink) Old 05-30-2016, 10:27 PM
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too much heat generated by the unseated parts?
that's just unfortunate!
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post #19 of 21 (permalink) Old 05-30-2016, 11:03 PM
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Originally Posted by supaginge View Post
ok i have downloaded the user manual, but what about not keeping the rpm constant?
I am no expert, but many people also told me that it would be best to vary the RPM. I took that to mean that it might not be ideal to go for a 600 mile ride on the freeway. If you want to take a trip, take the backroads. That's where this bike is a blast, and you'll vary the RPM plenty. Most of the riding you'll do will vary the RPM plenty. Enjoy the ride. It's a great bike.
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2011 Nomad: Black & Metallic Gray, Chuckster's Light Bar, Custom Dynamics Stingerz LEDs with Magic Strobes, Rac'nRay's Throttle Mod, Homemade Oversize Lowers, Luggage Rack, Ivan's Flash

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post #20 of 21 (permalink) Old 05-31-2016, 12:35 AM
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Originally Posted by VulcanDan61 View Post
I am no expert, but many people also told me that it would be best to vary the RPM. I took that to mean that it might not be ideal to go for a 600 mile ride on the freeway. If you want to take a trip, take the backroads. That's where this bike is a blast, and you'll vary the RPM plenty. Most of the riding you'll do will vary the RPM plenty. Enjoy the ride. It's a great bike.
@supaginge
I also think that is the correct approach to the matter. The book does not mention anything about keeping the RPM constant, but it does say to go as fast as 60mph in 5th gear. That being a little slow for highways one would assume the rider is going to use back-roads, inner city, etc.. the RPM is not going to be constant due to stop signs, different speed limits in the city, traffic and all that.
*Some Asian cars state not to keep the RPM constant for long periods of time in the break-in period and also mention moderate engine braking.

"got the bike on saturday and love it, and right now im riding it somewhat how the user manual says but not 100%
like i will shift up in the area it tells me to not exactly 20 30 40 etc"

It can sound a little high revved at 20mph in 1st gear and that is why it says 'recommended maximum speed'. One can obviously up-shift in 2nd at 10/12/15/whatever mph at lower RPM. Same goes for engine braking. As stated before, the goal is not to keep the RPMs as low as possible. The 900 can cruise at 30mph in 5th gear but that is not what you want right now.

Be safe and enjoy!
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