Product Overview
Custom ARP Main Stud Kit for 2008 to 2014 Yamaha watercraft. Made by ARP, the studs are 8740 chrome moly steel, heat-treated to 200,000 PSI tensile strength, and precision J-form thread-rolled after heat-treat resulting in a fastener that has threads 2000% stronger than others.
This Main Stud Kit includes:
- 10 studs
- 10 parallel ground washers
- 10 twelve-point nuts
- moly torque lube
- instruction sheet
ARP recommends studs are over bolts because of the ability to obtain a more accurate torque reading studs provide over bolts. Studs don't twist as they are fastened down. Additionally, because of this there is less force exerted on the thread of the block, which results in increased block life, especially on aluminum blocks. Finally, studs allow faster assembly and proper alignment of the caps every time.
Product made in the USA.
Fits all Yamaha SHO 1.8L / 1812cc displacement 2008-2014 Yamaha FZR Waverunner, FX SHO, FZS, FX HO watercrafts.
Applications:
- 2008-2016 Yamaha FX Cruiser 1812cc (HO/SHO/SVHO)
- 2008-2016 Yamaha FX 1812cc (HO/SHO/SVHO)
- 2009-2016 Yamaha FZR 1812cc
- 2009-2016 Yamaha FZS 1812cc
- 2011-2016 Yamaha VXR 1812cc
- 2011-2016 Yamaha VXS 1812cc
INSTRUCTIONS ARE INCLUDED IN THE BOX, DISPLAYED ON THE PRODUCT PICTURES, AND DOWN BELOW
Install modified studs in the row closest to the oil cooler. Torque to 45 lbs
1. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. Chase the
threads if necessary with ARP Thread Chaser.
2. Clean and inspect all hardware prior to installation. Look for obvious defects or shipping damages, plus proper fit,
length and dimension.
3. Screw the studs into the block "HAND TIGHT ONLY".
NOTE: LOCTITE MAY BE USED IF A PERMANENT MOUNTING OF THE STUDS IS PREFERRED.
THE FASTENERS, HOWEVER, MUST BE TORQUED PRIOR TO THE LOCTITE SETTING UP.
4. Install the cylinder head, and check for binding or misalignment.
5. Lubricate the stud threads, nuts and washers with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
Then install the washers and the nuts onto the studs and tighten them hand tight. ARP recommends using the
ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT that is provided with each kit as opposed to
motor oil. This is due to higher friction on the studs as well as inconsistencies in the clamping force of
the fasteners when motor oil or other low quality lubricants are used.
PRELOAD (TORQUE) RECOMMENDATIONS
6. Following the manufacturers recommended torque sequence tighten the nuts in three equal steps to 45ft lbs
with ARP ULTRA-TORQUE FASTENER ASSEMBLY LUBRICANT.
FOOTNOTE: When changing from factory fasteners to high strength fasteners, clamping force and tolerances will
change, therefore it will be necessary to check the main bearing bores for proper size and out of round condition after
installation of the studs and align hone the cylinder block if necessary. The main bores should always be align honed
using the same fasteners and lubricant which will be installed during final engine assembly at the recommended preload.
