Engine and Technical Discussion

Discussion of the KTM RC 390 Engine and Powertrain.
C
No coolant in the reservoir, and the coolant level in the radiator is two to three levels down on side stand
Replies
7
Views
884
gattim021
G
F
Engine won't rev past 8500 rpm in 5th and 6th gear
Replies
3
Views
85
KTMasean
KTMasean
rideontt
clutch pack Mild upgrade
Replies
2
Views
73
rideontt
rideontt
D
engine swap
2
Replies
36
Views
26K
Treachery
Treachery
musti
How To How to turn off the PowerTronic rev extender?
Replies
0
Views
51
musti
musti
ktmnz
Engine stalling / loss of power whilst riding
Replies
3
Views
426
Rye Mik
R
S
Broken spark plugs
Replies
8
Views
620
390tyganiels
3
musti
Need Help Stock injector vs oversize injector with powertronic piggyback ecu
2
Replies
24
Views
875
KTMasean
KTMasean
TVann
PCV Autotune question
Replies
1
Views
98
1JZSupra
1
K
Alert Indian welding quality- flywheel goes kaboom.
Replies
12
Views
256
musti
musti
1
A Little Head Work
Replies
4
Views
179
Formula390
Formula390
H
Rough idle and engine code after valve adjustment
Replies
6
Views
260
Highside Hero
H
Z
Won't rev past 7000
Replies
3
Views
82
Karfanatik
Karfanatik
musti
Need Help High Coolant Temperature
Replies
9
Views
290
musti
musti
W
Question Powercommander model year question (and maybe rapidbike EVO)
Replies
6
Views
596
Formula390
Formula390
acruhl
Upgraded injector
Replies
12
Views
843
1JZSupra
1
V
Showing JY_1.3.2 Error
Replies
3
Views
11K
Sai Yashwanth
S
836RADIO
Information The experience sharing of debugging the coolant overflow issue
Replies
3
Views
485
Seth
Seth
B
Question Where can buy KTM 390 big bore piston?
Replies
3
Views
194
belivefc
B
M
Clutch Not Engaging
Replies
0
Views
146
motoman998
M
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