Honda gxh50 break in?

jared8783

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i am receiving a honda in the mail tomarrow and need to break it in but can find no info on it

i was thinking something like this

idle it for a few hours
then maybe 1/4 throttle with no load for a few hours
then driving maybe 2/3 of top speed capability for a fews
then it will be broke in and drive as usual
does this sound good?
how do you normally break in a motor?
 
Just use it like you normally would, varying engine speed and change the oil at 10 hours- presto, broken in.

What you do not want to do it let it run at one speed for hours or run it flat out for long periods of time in the first 10 hours.
 
You don't want to idle for hours that's for sure, engines get the least amount of lubrication at idle. Revving an engine with no load isn't a good thing either.
 
I'm new to motorbikes, but I've been rebuilding engines for several years. You want to break in an engine by "driving like you stole it". Take the bike out and do a pull to about 3/4 then let off the throttle and let the engine slow its self down without using the bikes brakes. Do that two or three times then go to full throttle for a few seconds and let it slow its self down by letting off the throttle by not using the bikes brakes to slow it down once again. After doing that for a few times the engine will be broken in.

The reasoning behind this is because you want the rings to seal up against the cylinder wall. They seal up and break in BEST during decel, not accel which is the reason for allowing the engine to slow the bike down and not using the brakes.

- Mario
 
everybody has someTHING different to day

Just use it like you normally would, varying engine speed and change the oil at 10 hours- presto, broken in.

varying engine speed -- not to exceed 2/3 throttle for the first couple of hours

those that say to run those THINGS wide open at all while new -- super silly ones
my ex-wife bought a new Toyota MR2 before I knew her
the dumb salesman told her that same THING
that THING used a ton of oil !!

MM
 
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On Hondas with a plain aluminum bore finished with a diamond tool you don't rev hard for the first few hours or risk galling the cylinder.
The diamond boring operation leaves minute "whiskers" that need to be worn/broken off gently. Abusive break in such as WOT, tears them off and leaves a course finish that is subject to more tearing and possible galling.

I change oil after the first hour, then at 5 and again at 10. Honda says you should run 10 hours then change the oil.Don't use synthetic until after the 10 hour break in.
Castrol GTX 10-30 and Havoline 10-30 are two motor oils I recommend.
 
I hit 130 running hours, with 20 hour oil interval changes. Great lil' engine
 
I talked to Honda on the phone and they said that there is no break-in period. Simply change oil after 10 hours.

I probably will run it differently buring those 10 hours though such as not staying at the same speed for too long and will make sure that I warm up the engine for 10 minutes before running. And since I still have 3/4 quart of oil that i won't need i will prob change oil at 1 hour, 2 hours, 3 hours, and 4 hours.

Other than that I will do 2/3-3/4 throttle for first 20-30 minutes but after that WOT.

I specifically asked Honda if it was safe to go WOT on day one with the gxh-50 and they said that it would not harm the engine on account that there is no break-in period.
I think Honda probably knows best.


Thanks for all the help everyone and let me know if you have any more tips.
 
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