All information and pictures from HMF Engineering forums...
KTM 525 and 450 are EXACTLY the same applications.
Stock Jetting:
Pilot 42
OBEKR Needle Clip 3rd From Top
170 Main Jet
Fuel Screw 3/4 Turns Out
Accelerator Pump Squirt 3 seconds
HMF Jetting:
45 Pilot Jet
OBEKR Needle Clip 4th From Top
170 Main Jet
HMF Fuel screw 2.5 Turns Out
Airbox Restrictor Removed
HP Gains
ALL STOCK = RED
HMF Slip On and re jet = BLUE
HP @ 4.5K RPM
Stock 22.0
HMF 27.6
Gain 5.6
HP @ 5.0K RPM
Stock 26.2
HMF 32.0
Gain 5.8
HP @ 5.5K RPM
Stock 30.7
HMF 36.2
Gain 5.5
HP @ 6.0K RPM
Stock 34.7
HMF 40.0
Gain 5.3
HP @ 6.5K RPM
Stock 37.0
HMF 42.3
Gain 5.3
HP @ 7.0K RPM
Stock 38.2
HMF 43.5
Gain 5.3
HP @ 7.5K RPM
Stock 38.6
HMF 44.1
Gain 5.5
HP @ 7900 RPM (Max Power)
Stock 38.7
HMF 44.3
Gain 5.6
Torque Gains
Stock = RED
HMF Slip On = BLUE
TQ @ 4.5K RPM
Stock 25.7
HMF 32.2
Gain 6.5
TQ @ 5.0K RPM
Stock 27.9
HMF 33.6
Gain 5.7
TQ @ 6.0K RPM
Stock 30.4
HMF 35.0 (Peak Torque)
Gain 4.6
KTM 525 and 450 are EXACTLY the same applications.
Stock Jetting:
Pilot 42
OBEKR Needle Clip 3rd From Top
170 Main Jet
Fuel Screw 3/4 Turns Out
Accelerator Pump Squirt 3 seconds
HMF Jetting:
45 Pilot Jet
OBEKR Needle Clip 4th From Top
170 Main Jet
HMF Fuel screw 2.5 Turns Out
Airbox Restrictor Removed
HP Gains
ALL STOCK = RED
HMF Slip On and re jet = BLUE
HP @ 4.5K RPM
Stock 22.0
HMF 27.6
Gain 5.6
HP @ 5.0K RPM
Stock 26.2
HMF 32.0
Gain 5.8
HP @ 5.5K RPM
Stock 30.7
HMF 36.2
Gain 5.5
HP @ 6.0K RPM
Stock 34.7
HMF 40.0
Gain 5.3
HP @ 6.5K RPM
Stock 37.0
HMF 42.3
Gain 5.3
HP @ 7.0K RPM
Stock 38.2
HMF 43.5
Gain 5.3
HP @ 7.5K RPM
Stock 38.6
HMF 44.1
Gain 5.5
HP @ 7900 RPM (Max Power)
Stock 38.7
HMF 44.3
Gain 5.6
Torque Gains
Stock = RED
HMF Slip On = BLUE
TQ @ 4.5K RPM
Stock 25.7
HMF 32.2
Gain 6.5
TQ @ 5.0K RPM
Stock 27.9
HMF 33.6
Gain 5.7
TQ @ 6.0K RPM
Stock 30.4
HMF 35.0 (Peak Torque)
Gain 4.6
Attachments
-
61.2 KB Views: 649
-
78.8 KB Views: 2,382
-
92.4 KB Views: 588
-
30.6 KB Views: 833
-
36.8 KB Views: 597