Here we have a 125 big bore kit for a XL125 1982 OWARDS with the bore size of 65.5mm its the same size as the same bore size as TLR200/xr200. Slightly shorter crank stroke which makes for lively motor and different deck height on piston compared to Tlr200 so you don't get the full 200 cc but big increase 9mm 56.5 mm to 65.50mm, Bottom on Spigot on cylinder were it fits into crankcase is 68mm so you must have 70mm crankcase hole. So if you have a XL125 and it has the large 70mm crankcase hole you can have the same size bore as TLR200/xr200. Cylinder is a alloy big fin for better cooling sim size to xl185 bored relined modified in the uk.
Piston is a 65.50mm we modified the deck hight in the uk the crown and skirt to assure straight fit. 56.5mm is std bore so 9mm increase massive difference. Cut and paste into google The two links bellow See our 190 kit fitted with our mikuni carb 28mm to the winning bike a cb125 in YouTube video And on the dyno revs unbelievable (well done Ivan rebel alliance) Have separated up with the!!! Also, fits the TL125 B - J Models from 1981 to 1988 also known as the TLR125 , rockhopper and fieldtripper. Honda made this model engine from 1982 to 1991.IMPORTANT BERLT BIGBORE KITS ARE FOR COMPETITION USE ONLY. TRACK DAYS / DIRT RACING/ CLOSED CIRCUIT RACING ONLY. NOT SUITABLE FOR ROAD USE. Due to the highly tuned nature of the product. PLEASE CONTACT YOUR GOVERNMENT /POST OFFICE. The item "HONDA XL125 1983 ON 190 kit 65.5MM Big Bore Straight Fit OE GASKETS" is in sale since Wednesday, July 8, 2020. This item is in the category "Vehicle Parts & Accessories\Trials & Motocross Bike Parts". The seller is "leezy_61_123" and is located in Hexham, Northumberland. This item can be shipped worldwide.