YZ112 Big Bore/Stroker

Motorcycles Yamaha Kit

Please call to order 608-842-0680

Availability: In stock.

Regular Price: $1,975.00

Special Price: $1,675.00


Quick Overview

YZ112 Specifications: Fits 2001 – Current YZ80 and YZ85

Send us your engine and get a 105cc stroker kit installed.


Product Description

Bore: Yes

Stroke: Yes

Actual Displacement = 111.27cc

Engine Modifications Required:

Cylinder: Bore, Port and Replate with Ceramic Nickel Bore coating.

Power Valves: N/A

Head: Rechamber to work with the stroker crank. 100 octane suggested for most conditions.

Crankshaft: Stroked and balanced.

Crankcase: Modified to clear stroker crank and larger piston.

Blueprint: Calculate deck height, squish clearance, trapped volume, port timing and compression ratio and list on your perminant Spec-Sheet.

Notes: This kit requires you to send us your entire engine for modification, with kickstarter and shifter

Notes: This is a national level engine package. The power delivery is designed to build confidence for young riders. It delivers torque and hook up that are unparalleled in the industry that carries to a screaming top end pull. This kit just makes all riders faster because it is smooth, easy to ride, and does not fall off the pipe like other engines out there.

Notes: Prices listed are to install stroker kit parts in good condition engine. Should your engine need rebuild parts there will be additional charges. We will call for approval before we install any parts that will have additional charges. (example: rod kit, mains, main seals, trans parts)


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