TB 186cc Big Bore Kit
TB 186cc Big Bore Kit
186cc Big Bore Performance Kit (64mm):
– Ceramic coated all aluminum cylinder (no steel sleeve)
– Lightweight 64mm piston with rings, pin, & clips
– Head gasket kit
This is the biggest bore kit on the market! The all aluminum ceramic coated cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). This new big bore kit will provide the extra power to make your new Grom a lot more fun to ride! High quality parts and requires no machining to the cases.
There are no installation instructions, but if you can replace your piston, you can install this kit as the parts are installed in the same manner as the OEM parts. However, its recommended that a professional install this kit. It also must be used with an aftermarket fuel controller to prevent a lean condition and damage to your engine.
This product is legal for closed-course competition use only; for racing vehicles (a competition vehicle not used on public highways). Intended for off-road use or race purposes; may not meet regulations of pollution controlled roads or highways. Not legal for vehicles registered and use in California.
As the throttle body and intake manifold are used to control the amount of air flowing to the engine’s combustion chamber, they are important elements of the admission system. Using our Koso’s 34 mm throttle body in conjunction with our 30.5 to 34mm intake manifold will allow a better air/fuel mixtures for a quicker throttle response.
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.
The Oil Cooler Kit is a high quality accessory designed to help the Honda horizontal engine keep cooler. Air-cooled engines run hotter when modified (i.e. big bore kits) and/or subjected to heavy loads such as racing use. This kit will help the engine’s durability and reliability by circulating the engine oil through a cooler reducing the engine’s oil temperature. The kit includes the following:
– Lightweight aluminum 4 row oil cooler (not a 3 row as many others sell).
– AN fittings
– Crimped, braided lines
– No hose clamps that could easily come off or leak nor cheap rubber hoses.
– Mounting Bracket and Hardware
This oil cooler must be used with our big bore kit or one that has similar cylinder fittings (Kitaco and possibly others).
Have a big bore engine? Well this is perfect for you guys with an upgraded motor. This will help secure that new engine place and helps reduce vibration. Not only is it functional but looks great as well.
Need to monitor your engine temperature? Our Mini 3 Cylinder Head Temperature meter is designed especially for Honda GROM® which is the perfect addition for you. Its peak recall function will allow you to see the maximum temperature reach.
Temperature & Max. temp record
Display range:
t-1- -20~200°C (-4~392°F)
t-2- -40~185°C (-40~365°F)
t-3- -20~220°C (-4~428°F)
t-4- -20~200°C (-4~392°F)
t-5- -20~120°C (-4~248°F)
Display unit 0.1°C (°F)
Temperature type Display unit: t-1~t-5
Effective voltage DC 12V
Meter standard JIS D 0203 S2
Meter size (W X L X H)60 x 30 x 11.5mm
Meter weight ±22g
Your need for speed pushed you to install our 170cc Big Bore kit and 4 Valve Head kit? Unleash the full power of that kit by using our High‑flow Injector. A small upgrade for better performance!!
This product is legal for closed-course competition use only; for racing vehicles (a competition vehicle not used on public highways). Intended for off-road use or race purposes; may not meet regulations of pollution controlled roads or highways. Not legal for vehicles registered and use in California.
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.
Made from resistant high quality material, our Koso chain tensioner could save your engine from expensive damage. We came up with this long lasting solution to replace the OEM chain tensioner which has a tendency to wear prematurely.
* The arm is made by Aluminum 6061, and the wheel is made by JIS SCM415 (=SAE 4115) Alloy Structure Steel (Chromium Molybdenum Steel).
* Works on stock engine and highly recommended to use with our Big Bore & 4V Head kit.
* Fits 2014 to 2017 engines.
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.
Our Koso High-flow oil pump for Honda GROM® is strongly recommended for those who upgraded their engine with our 170cc Big Bore kit and 4v Cylinder head. The addition of this high quality part will increase the oil flow by 40%; which is a very effective modification that will help prevent engine failure. Keeping the engine lubricated and cool is very important; whether you ride for fun or for races.
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.
As the throttle body and intake manifold are used to control the amount of air flowing to the engine’s combustion chamber, they are important elements of the admission system. Using our Koso 34 mm throttle body in conjunction with our 30.5 to 34mm intake manifold will allow better air/fuel mixtures for a quicker throttle response.
WARNING
THIS IS AN AFTERMARKET PART BUILT FOR RACING PURPOSES ONLY. KOSO IS NOT RESPONSIBLE FOR ANY DAMAGES CAUSED TO THE PARTS, VEHICLE, OR TO YOURSELF AND OTHERS. ENGINE PARTS ARE NOT UNDER WARRANTY NOR IS COLLATERAL DAMAGE OR COST OF LABOR, IN CASES OF MALFUNCTION.