YS ENGINES OUT OF STOCK!

 

YS .70-FZS
Price:  $319.95
- OUT OF STOCK - 

RPM Range: 2,000 to 12,000 RPM
Weight: 460 grams

The new and improved YS 70-FZS is a drop in replacement for the previous YS-63 and has the same noteworthy features as the 63 but with more power!  Features better regulator placement to run cooler in harsh environments. The lower crankcase has been strengthened to help prevent distortion during both high air and HP loads. The cylinder is now "liner-less" for better heat transfer, another aid in high heat conditions.

YS Engines may also be
purchased with any other
product on this website.

Online Manual

YS FZ1.10-S
Price:  $379.95
-OUT OF STOCK - 

RPM Range: 2,000 to 9,500 RPM
Weight: 27.4 oz.

Same physical size and weight as YS 91FZ but produces 5% to 8% more power. Utilizes YS's proven supercharged fuel-injection system that uses crankcase pressure, the disc valve system and a dual throttle valve to supercharge the fuel mixture. Two-needle carb with regulator adjustment.  The new FZ-S engines sports even more power than before with relocated regulator for better cooling, rear bearing, and ring-sealed crankcase for more boost.

YS Engines may also be
purchased with any other
product on this website.

Online Manual

The new YS 1.40 Sport is now available. This engine replaces the YS 1.20 FZ which was discontinued in early 2002. It is an exceptionally easy engine to operate with smooth running characteristics and the ability to run well on fuel in a variety of nitro percentages. However, we still recommend YS 20/20 fuel for best results. It is the same physical size as the 1.20 it replaces.

YS Engines may also be
purchased with any other
product on this website.

 

Online Manual