SAITO FA-90TS (twin)

Description

Saito FA-90TS bearings from RC Bearings are a standard replacement set for modelers who want their twin-cylinder four-stroke running at its very best. Each set is made to our own exacting specs using only top-quality parts, with clearances and tolerances tightly controlled for smooth running, a dependable idle, and full power. If your FA-90TS has lost some of its smoothness, a fresh set of bearings is one of the best ways to bring it back.

Why Choose RC Bearings Saito FA-90TS Bearings?

The Saito FA-90TS is a special engine, and owners love it for its realistic twin sound and smooth power delivery. Keeping it that way shouldn’t mean paying high OEM prices. Our Saito FA-90TS bearings are an economical replacement for the originals with no loss in performance, which makes regular maintenance far more affordable.

Whether your twin powers a scale warbird, a vintage-style model, or a sport plane you fly every weekend, these bearings are built to handle the heat, vibration, and sustained RPM of four-stroke operation. Tight tolerances keep the crankshaft running true, which means less wear on the rest of the engine and a cleaner sound in the air.

Signs Your Saito FA-90TS Bearings Are Worn

Bearing wear creeps up slowly, so it pays to check your engine regularly. Common warning signs include:

• A gritty or notchy feel when you turn the prop by hand
• Extra noise, rattling, or vibration while the engine is running
• An idle that won’t settle or a noticeable drop in top-end RPM
• Play or wobble in the crankshaft
• Stiffness or rust after the engine has been stored

A twin has more moving parts than a single-cylinder engine, so catching bearing wear early helps protect the crankshaft, connecting rods, and crankcase from more expensive damage.

How Do I Install Saito FA-90TS Bearings?

Changing bearings can feel like a big job if you’ve never done it, but it’s very manageable with a clear guide. We’ve put together a short video that walks you through the process step by step: Watch: How to Change Your Engine Bearings. Twin engines take a little more care to strip down, so photograph each stage and lay the parts out in order. That makes reassembly much easier.

Looking After Your Engine Between Flights

A few simple habits will help your new bearings last. At the end of each flying day, run the engine until the fuel is used up, then add a few drops of after-run oil to protect the internals from corrosive fuel residue. Store the model somewhere dry, and keep the intake clean so dirt can’t find its way inside. Looked after this way, your Saito FA-90TS bearings will keep the engine running smoothly for many seasons.

Saito FA-90TS Bearings FAQ

Should I replace all the bearings at the same time?
Yes. Bearings in the same engine wear at a similar rate, so replacing the full set gives you the best result and saves you from opening the engine twice.

Will this set fit other Saito engines?
This set is matched to the FA-90TS. For other Saito models, browse our engine bearings range or give us a call and we’ll find the right set for you.

Where Can I Find More RC Engine Bearings?

Browse our full selection of RC Engine Bearings for Saito, Laser, OS, Thunder Tiger, and heli engine bearing sets, all in stock and ready to ship nationwide. Need help? Call our team at (+1) 978-254-3987.