Call to order 608-842-0680
Availability: Built to order
Special Price: $2295
YZ151 Specifications:
Fits 1997-Current YZ125 / YZ125X
Product Description
Bore: Yes (57mm)
Stroke: Yes (59mm)
Actual Displacement = 150.55cc
Engine Modifications Included:
This is a complete engine build and requires you to send us your YZ125 engine. We will mod it to YZ151 specs.
Cylinder: Bore, Port and Replate with Ceramic Nickel Bore coating.
Power Valves: Precision machined to exact specifications.
Head: Re-chamber to work with the custom Wiseco Big Bore piston and 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 personal Spec-Sheet.
Notes: This kit requires you to send us your entire engine for modification with kick starter and shifter.
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)
Notes: The YZ151 is a top end monster. This is the kit we recommend for “A” class and “Vet pro” riders who want to stay on their 125’s but hate getting yarded by 250F’s on the straights. It has much more torque than the stock engine and revs out even further than a stock YZ125. It makes more peak horsepower than most mod 250F’s so if you can keep up with them on a 125 you will have no problem beating them with this mod.
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