For 2019 a new GYTR® High Performance Kit for the YZ85 is developed in cooperation with YAMAHA RACING in Europe.
It is a result of their top-level knowledge combined with their GP 2-stroke racing experience.
The target of this kit is to improve the performance of the production YZ85.
Attention has been paid to reach a high performance level without forgetting the engine durability on heavy racetrack conditions as we have in Europe.
GYTR® recommends to use the kit for a new YZ85 model year 2018/2019
or an overhauled fresh engine to ensure performance and durability
Included in the kit:
|1 ||GYTR Cylinder head + bolt and washer || ||1|
|2 ||GYTR Cylinder head insert + O-ring ||1|
|3 ||GYTR ported cilinder ||1|
|4 ||Blue silicone Radiator hose ||1|
|5 ||GYTR CDI unit ||1|
|6 ||Iridium race spark plug ||1|
|7 ||GYTR silencer kit ||1|
|8 ||GYTR exhaust pipe ||1|
|9 ||Vforce Reed valve system + 4 bolts ||1|
|10 ||GYTR Radiator cap 2.0 ||1|
|11 ||Kit needle ||1|
|12 ||Owners manual ||1|
|Spare parts ( not included in kit)|
|Reed valve spare ||BR8VF0RCSP00|
|Silencer fiber (package) ||1SRFIBERSP00|
Cylinder head with bolts and washers
Special CNC machined cylinder head will come with studs.
• The cylinder head insert with O-ring
It has a special shape of the dome in order to optimize combustion
• GYTR cylinder
The Ported cylinder developed by GYTR®. Cylinder improves airflow of the ports. Comes with new oil seal pre-installed for the shaft of the
exhaust valve system. Porting is CNC reworked and after that they are manually checked to rework the last edges.
• Silicon Radiator hose
For better routing of coolant with the GYTR cylinder head
• GYTR CDI
It provides optimum ignition characteristics to improve the basic performance of the GYTR® Engine Kit.
• NGK Iridium race spark plug
High quality race sparkplug for long lasting reliability with high performance engine
GYTR kit Silencer
GYTR® designed this special aluminium silencer to reach the best engine power while ensuring the durability. (With laser engraved GYTR logo)
It also lowers weight of the bike.
• GYTR Exhaust kit Pipe
The GYTR® designed exhaust pipe has been improved to get more performance s made to provide a well-balanced performance and
throttle response in whole RPM ranges.
It also lowers weight of the bike
• VFORCE ® Reed Valve air intake system
Intake manifold with carbon-fibre reed valves for better throttle response and durability.
• GYTR high pressure radiator cap
The GYTR® radiator cap increases pressure up to 2.0 bar which prevents loose of coolant during races.
• kIt needle
Gas-needle to enhance the best performance of this GYTR kit.
• Kit Owners Manual
The manual gives you some additional information straight from the Yamaha Factory Racing experts to get the best performance and
durability out of your YZ85 engine.