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Old 06-02-2015, 01:20 PM   #1
Barekat OP
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Recent convert from 3/4 cylinder engines to LC8

As a recent convert to KTM I'm still getting use to the LC8 in my SA.

The engine pulls unbelievably from 3500rpm but the power seems to peter out as the RPM rise... I'm still in the run-in period so I haven't had the LC8 much over the flashing red light (cough, cough, well maybe a little over 6500).

The first thing I notice is significant engine vibration especially when accelerating in 4th, 5th, 6th from lower speeds.

Even using the cruise control I get a fair bit of vibration unless the engine is running above 4500rpm. This means I don't use 6th gear very much.

Sometimes I long for the smooth 4cyl engine on longer distances but I suppose I'll get use to the big twin as the miles rack up.
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Old 06-02-2015, 01:32 PM   #2
painterdude
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have owned in line 4s and v Twins
My last in line 4 was slightly less viby than the 1190 I presently run.
As to power, the 1190- rocks from 5 on through to about 9 grand.
Maybe a different power delivery in the SA. More on the bottom.
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Old 06-02-2015, 01:34 PM   #3
ZeZeZoom
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I never had any 3 or 4 cylinder bike. I rode a few 4 cylinder bikes and enjoyed their linear power delivery. These big twins from KTM are just soooo much more fun, though. Vibrations included.
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Old 06-02-2015, 01:36 PM   #4
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Quote:
Originally Posted by painterdude View Post
have owned in line 4s and v Twins
My last in line 4 was slightly less viby than the 1190 I presently run.
As to power, the 1190- rocks from 5 on through to about 9 grand.
Maybe a different power delivery in the SA. More on the bottom.
Well, still in the break in period I got the sensation that the engine of the 1290 SA gets hysterical after 5000 rpm...
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Old 06-02-2015, 01:55 PM   #5
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Wicked

Quote:
Originally Posted by ZeZeZoom View Post
Well, still in the break in period I got the sensation that the engine of the 1290 SA gets hysterical after 5000 rpm...
Yessir zoom! I am out of break-in mode and can guarantee the power is right up there with 4 cyl street bikes when you turn off TC entirely. If left on,it will very subtly impede your acceleration. So if its wheelies you crave or power drifting the rear on command, turn it all off if your skills allow. It's insanely addictive. (Closed course, of course)
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Old 06-02-2015, 02:06 PM   #6
ZeZeZoom
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Yessir zoom! I am out of break-in mode and can guarantee the power is right up there with 4 cyl street bikes when you turn off TC entirely. If left on,it will very subtly impede your acceleration. So if its wheelies you crave or power drifting the rear on command, turn it all off if your skills allow. It's insanely addictive. (Closed course, of course)
Why are telling me those tales?
My (lack of) skills won't allow me such indulgements...
I enjoy playing with the engine bteween 5.000 and 6.500 rpm, though. What a punch!
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Old 06-02-2015, 02:26 PM   #7
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Well sport mode will get your wheel up just a little with some factor of safety. It will even give you a little thrill in street mode by lifting a couple of inches then brings it safely back down. (I know its a bit juvenile, but my kids think i am ricky charmichael and it gives a little thrill)
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Old 06-02-2015, 03:45 PM   #8
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Turn off MTC and prepare to ride a different bike...
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Old 06-02-2015, 05:00 PM   #9
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Turn off MTC and prepare to ride a different bike...
x2
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Old 06-02-2015, 05:29 PM   #10
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Are you f#^%ing guys trying to do me in?

Even KTM sent a warning in their literature!



Quote:
Originally Posted by scudrunner82 View Post
Turn off MTC and prepare to ride a different bike...
Quote:
Originally Posted by pwh View Post
x2
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Old 06-02-2015, 05:50 PM   #11
imzolo
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Quote:
Originally Posted by Barekat View Post
As a recent convert to KTM I'm still getting use to the LC8 in my SA.

The engine pulls unbelievably from 3500rpm but the power seems to peter out as the RPM rise... I'm still in the run-in period so I haven't had the LC8 much over the flashing red light (cough, cough, well maybe a little over 6500).

The first thing I notice is significant engine vibration especially when accelerating in 4th, 5th, 6th from lower speeds.

Even using the cruise control I get a fair bit of vibration unless the engine is running above 4500rpm. This means I don't use 6th gear very much.

Sometimes I long for the smooth 4cyl engine on longer distances but I suppose I'll get use to the big twin as the miles rack up.
Welcome to the world of twins. Everything you state above is totally normal. This engine isn't happy below 4k, and you should never accelerate from anywhere below that range in 5th or 6th--you'll just be lugging the engine.

Same experience with Ducati twins.

Zolo
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Old 06-02-2015, 07:07 PM   #12
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Quote:
Originally Posted by imzolo View Post
welcome to the world of twins. Everything you state above is totally normal. This engine isn't happy below 4k, and you should never accelerate from anywhere below that range in 5th or 6th--you'll just be lugging the engine.



Same experience with ducati twins.



Zolo

x2
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Old 06-03-2015, 04:17 AM   #13
DennisK
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Interesting thread.

Every SA owner raves about the low end torque.
So, how does it compare to the 1190, is the difference really that big?
And what about the top end?
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Old 06-03-2015, 06:52 AM   #14
ZeZeZoom
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Can't speak much about the top end torque, as mine is still in the break in period and I only revved it above 6.500 rpm 3 or 4 times (and just for a couple of seconds). However, I have the distinct feeling the 1290 is stronger than the 1190 over the entire rev regime.
On the lower end of the rev range, though, the engines behave quite differently. I had a 1190 before (made 19.500 kms to it, most of which in heavy city traffic) and the 1290 has LOTS of torque more than the 1190 below 3500 rpm.
The 1290 engine is more refined and much smoother than the 1190 engine. On top of that, its fuel consumption is lower by at least 0,5 liters every 100 kms.
Yesterday, I was riding in the highway at 140 kms/h, in 6th gear, at an incline (ascending). When the car in front of me moved over to the right I twisted the throttle just a bit and the bike reached 165 kms/h in an heartbeat! So much so that I almost hit the car as it took a while more than I expected to reach the right lane. The bike gains speed so fast that it can be dangerous.
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Old 06-03-2015, 07:37 AM   #15
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Hence the warning from KTM in post # 10 above.
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