The Finest Cuyuna Spare Parts in Southeastern Illinois

These gaskets are used in Cuyuna 215, 230, 430, UL II 02, and 2si 460 series engines. Some gaskets are also used in the 2si 460 and 690 liquid-cooled engines. We have the 430 intake insulators (399-07-012-000) in stock.

These gaskets and O-rings are used on liquid-cooled Cuyuna 430, 2si 460, and 690 engines.

These bearings and seals are used in all Cuyuna and 2si engines.

These are typical hardware items found on all Cuyuna and 2si engines.

These are upper and lower fan pulley halves, a fan shaft, a spacer, tensioning shims, a fan belt, and a late model recoil cup. They are used on all air-cooled Cuyuna and 2si engines.

This standard fan pulls in air and pushes it toward the PTO end of the engine. A reverse fan pulls air in from the PTO side of the engine and exhausts out the fan cover.

The upper cylinder head is the standard head. The lower cylinder head is used on later model 430 and all UL II 02 engines on one cylinder only. The “flo-thru” head is placed on the cylinder receiving the cool air first. On a standard engine, the “flo-thru” head would be located on the cylinder nearest the fan.

We stock pistons for Cuyuna 340, 430, UL II 02, 215, 230, 460, and 690 engines. We also have sleeves for UL II 02, late model 215, 230, 460, and 690 engines. All pistons are offered in .5mm oversize. Piston and rings may be available for some earlier Cuyuna engine models not listed above by special order.

These ignition components are common to most Cuyuna and 2si air-cooled engines. The small black coil pictured with no ignition wires is used on point ignition engines. The tan-colored coil is used on early CDI ignition engines with NIPPONDENSO ignitions. The black coil with wires is a late model CDI supplied by Kokosan.

Pictured are ignition and charge components for the 690L-70 engine. The ignition module in the lower RH corner is for the 460F-35 engine.

These are various exhaust system springs, exhaust system rubber isolators, new and old-style, and standard B8ES spark plugs used in virtually all Cuyuna and 2si engines.

These are early-style recoil parts. They are identifiable by the black plastic recoil pulley. The later recoils used steel pulleys. The engines built since the mid-eighties use white plastic recoil pulleys.

This is a current-style recoil assy. It is the starter motor used on most electric start engines and starter ring gear.

These are a water pump, water pump belt, and cylinder head used on all 2si liquid-cooled engines.

This 32mm Mikuni carburetor is used on most Cuyuna engines. 2si engines used 32mm and 36mm Bing carburetors. These engines can be retrofitted to accept the superior Mikuni carburetors. Also pictured are standard jet packages and the lever choke kit.

These are typical air filters used. The foam style is used on all air-cooled engines. The paper type is used on liquid-cooled engines. The carburetor boots are available for 28mm, 32mm, and 36mm carburetors.

These Mikuni fuel pumps are used on single, twin, and triple-cylinder engines. The throttle splitter is for dual carburetor installations. 

The CD contains:

• The Original Cuyuna Service Manual and Parts Manual for the 215, 430, and UL II 02 Engines
• The Only Viable Service Manual for the 2si Engines
• Parts Manual for the 2si Liquid-Cooled Engines

These are Cuyuna special tools. The flywheel puller is for all Cuyuna and most 2si engines. The piston pin puller is for all engines.

These are 2si cog belt reduction drive parts. We also have an upper shaft and bearings (not pictured). New and used complete units are sometimes available.

We carry Nova/2si gearbox parts, such as bearings, seals, rubber isolator bushings, rubber vent valves, drive hubs, and hardware items. Complete gearboxes are available and generally used in ratios of 2.48, 2.04, 2.65, and 3.04 to one.