ITALKIT Connecting Rod Kit for KTM SX 125, SX 150 and HUSQVARNA TC 150 2016-2023

The ITALKIT BC.8714R connecting rod kit is designed for KTM SX 125, SX 150 and HUSQVARNA TC 150 from 2016 to 2023. The connecting rod links the piston to the crankshaft and takes the most violent loads in the engine. Its big-end bearing and crank pin wear over the hours: play at the big end is the warning sign of a failure that can wreck the whole engine.

Specifications

• Brand: ITALKIT
• Manufacturer part number: BC.8714R
• Centre-to-centre length: 110 mm
• Small end bore: 19 mm
• Big end bore: 28 mm
• Small end width: 15.9 mm
• Big end width: 15.9 mm
• Crankpin diameter: 22 mm
• Crankpin length: 56 mm
• Small end bearing: 15x19x20 mm
• Big end bearing: 22x28x15.7 mm
• Conrod thrust washers: 1 mm
• Engine: 2-stroke

When to replace it?

• Vertical play at the big end at top dead centre.
• Side play out of tolerance, signs of overheating (bluing).
• Vibration and dull noise from the bottom end.

During a bottom end rebuild, at the intervals in the service manual, and without delay as soon as play appears at the big end.

Fitting tips

1. Replacing a connecting rod means pressing the crankshaft apart and then realigning it: with a dial indicator, you check the run-out, i.e. the deviation in rotation measured at the end of the shaft, which must stay within a few hundredths of a millimetre at most. Leave this job to a properly equipped workshop if you don't have a press and a truing stand.
2. Replace the crankshaft bearings and oil seals at the same time.
3. Check the big-end side play after assembly.
4. Close up the engine with a complete engine gasket kit and tighten to the manufacturer's torque.
5. Check the gearbox bearings, then fill up with fresh oil and fit a new spark plug.

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• Complete engine gasket kit : TECNIUM · MOOSE
• Gearbox bearings : HOT RODS TBK0018 · HOT RODS TBK0102
• 2-stroke oil : LIQUI MOLY 1 L · LIQUI MOLY 4 L
• Spark plug : NGK 2707 · NGK 4492

Frequently asked questions

Can I fit the connecting rod myself?
Yes, if you have a press and a crankshaft truing stand; otherwise, an engine workshop can do it for you.

What else should I plan for?
The crankshaft bearing and seal kit, the complete engine gasket kit, the gearbox bearings if required, engine oil and a spark plug.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HUSQVARNA TC 150 2023
HUSQVARNA TC 150 2022
HUSQVARNA TC 150 2021
HUSQVARNA TC 150 2020
HUSQVARNA TC 150 2019
HUSQVARNA TC 150 2018
HUSQVARNA TC 150 2017
HUSQVARNA TC 150 2016
KTM SX 125 2023
KTM SX 125 2022
KTM SX 125 2021
KTM SX 125 2020
KTM SX 125 2019
KTM SX 125 2018
KTM SX 125 2017
KTM SX 125 2016
KTM SX 150 2022
KTM SX 150 2021
KTM SX 150 2020
KTM SX 150 2019
KTM SX 150 2018
KTM SX 150 2017
KTM SX 150 2016