7841 Morrison St. · Morrisonville WI 53571 · 608-842-0680

Skip to Main Content »

Search Site

You're currently on:

    • Product YZ98 Big Bore successfully added to compare list
    • Product YZ98 Big Bore successfully added to compare list

YZ98 Big Bore

Double click on above image to view full picture

Zoom Out
Zoom In

More Views

YZ98 Big Bore

Please call to order 608-842-0680

Be the first to review this product

Availability: In stock.

Regular Price: $800.00

Special Price: $625.00

Quick Overview

YZ98 Big Bore Specifications:

Fits 2001-Current YZ80 and YZ85

* Required Fields

Regular Price: $800.00

Special Price: $625.00

Add Items to Cart

Product Description

Bore: Yes
Stroke: No
Actual Displacement = 97.65cc

Engine Modifications Required:
Cylinder: Bore, Port and Replate with Apticote 2000 ceramic bore coating.
Power Valves: N/A
Head: Rechamber to work with the Big Bore piston. 100 octane suggested for most conditions.
Crankshaft: No crank mods required.
Crankcase: No crankcase mods required.
Blueprint: Calculate deck height, squish clearance, trapped volume, port timing and compression ratio and list on your perminant Spec-Sheet. (Some operations with install only)

Notes: This kit requires you to send us your cylinder, head, and powervalves for modification.

Notes: Core parts subject to inspection before credits will be issued.

Notes: This is an entry level engine package that has excellent power delivery for the supermini classes. It holds it's own against YZ105's and YZ112's.

Notes: It can be later stroked to 105cc with head mods.