Running in question - KTM Duke 390 Forum
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post #1 of 18 Old 04-14-2019, 04:12 PM Thread Starter
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My Duke 390 currently has only 300 miles from new.
The first 130 miles were partially motorway/freeway (constant speed) as l had to ride it home from the dealer.
Not ideal, but it wasn’t safe to go much slower than the maximum running in speed of around 60mph
As soon as possible l left the motorway and travelled across country so was able to vary the engine speed and loading.
After that l have done a further 170 miles of varied riding.
However l need to make another motorway trip of 200 miles....will this harm the engine? I can’t really vary the speed much as 55-60mph is pretty slow to be riding on this type of road. I could possibly vary it from 50-70mph and ignore the 6,000 rpm limit.
The bike has not yet had the first service/inspection

Or l could go in the car! But it’s forecast really nice weather so it would be a shame to do that.

Last edited by lightning; 04-14-2019 at 04:17 PM.
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post #2 of 18 Old 04-14-2019, 04:49 PM
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Originally Posted by lightning View Post
My Duke 390 currently has only 300 miles from new.
The first 130 miles were partially motorway/freeway (constant speed) as l had to ride it home from the dealer.
Not ideal, but it wasnít safe to go much slower than the maximum running in speed of around 60mph
As soon as possible l left the motorway and travelled across country so was able to vary the engine speed and loading.
After that l have done a further 170 miles of varied riding.
However l need to make another motorway trip of 200 miles....will this harm the engine? I canít really vary the speed much as 55-60mph is pretty slow to be riding on this type of road. I could possibly vary it from 50-70mph and ignore the 6,000 rpm limit.
The bike has not yet had the first service/inspection

Or l could go in the car! But itís forecast really nice weather so it would be a shame to do that.
It's 6000rpm now?

It was 7,500 for my 2017....
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post #3 of 18 Old 04-14-2019, 05:09 PM Thread Starter
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The shift light comes on at 6,500 so l assume they don’t want you to exceed that figure.
I am more bothered about doing 200 miles at a constant speed as l’ve read it not the best way to break in the engine.
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post #4 of 18 Old 04-14-2019, 05:14 PM
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The shift light comes on at 6,500 so l assume they donít want you to exceed that figure.
I am more bothered about doing 200 miles at a constant speed as líve read it not the best way to break in the engine.
I suppose you could get off at an exit every now and then and get back on to run out through the gears or something similar....
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post #5 of 18 Old 04-14-2019, 09:53 PM
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Lightning, you are right to be concerned.
Leave early and take the back roads or if you must take the highway, take your car.
This is too important of a time to put 400 kms on the wrong way.

I noticed break-in produced increasing power and fuel mileage well over 3000 kms.
I'd suggest using a fair amount of throttle (3/4?) for short time periods, revs under 6500, varied speeds.

2018 390 Duke with knobbies
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post #6 of 18 Old 04-14-2019, 11:56 PM
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I'd take the car. Don't like long motorway riding, and certainly not on the 390.
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post #7 of 18 Old 04-15-2019, 03:25 AM
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Always gets a smile when I take a running in bike back to dealership after they see my throttle . Something I was taught many years ago , using tippex or similar mark on twistgrip 1/4 1/2 3/4 throttle opening forget rev counter . First 250 miles 1/4 throttle max next 250 1/2 throttle up to 750 miles 3/4 throttle this has worked exceptionally well for me for the past 50 years . Modern bikes probably don't need such gentle running in .
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post #8 of 18 Old 04-15-2019, 10:28 AM
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Modern bikes probably don't need such gentle running in .
Quite right.

There are engine builders who think driving the bike like you stole it works best for break in.
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post #9 of 18 Old 04-15-2019, 01:35 PM Thread Starter
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Thanks for all the advice. I will look to see if there’s a cross country route, avoiding motorways, that won’t take too long. I’m happy to detour for some good riding!
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post #10 of 18 Old 04-15-2019, 07:38 PM
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Thanks for all the advice. I will look to see if there’s a cross country route, avoiding motorways, that won’t take too long. I’m happy to detour for some good riding!
I like your style Lightening!
"I bought this thing to ride and darn it, I'M GONNA RIDE!

Some guys sit at home polishing it, I'm out riding the heck out of it. I ain't just talking about bikes either!

2018 390 Duke with knobbies
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