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Resonating Exhaust Pipe Design: One of the unique features of the RETROL HM-01 engine is the inclusion of a resonating exhaust pipe design. This design reproduces the exhaust sound and adds a unique aesthetic appeal. The sound can be heard when the engine operates at extremely low speeds, offering an immersive and realistic experience.
Quick-Slow Speed Switch: A specially designed feature rarely seen in other engines, the "quick-slow speed switch" allows users to switch between ultra-low speeds and high speeds for power output. This feature provides a greater sense of playability and control, offering a versatile experience for engine enthusiasts.
User-Friendly Carburetor Design: The novel carburetor design of the RETROL HM-01 engine makes it easier to adjust, particularly for beginners. This user-friendly feature simplifies the tuning process and enhances the overall usability of the engine.
Adjustable Main Oil Cup: The engine incorporates a transparent and adjustable main oil cup. This feature allows for precise lubrication, ensuring enhanced durability and a longer lifespan for the engine.
One flywheel is equipped with a spring-loaded ball design, while the other features a split-type wide-faced belt pulley, making the engine highly practical for power output.
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The RETROL HM-01 engine features an adjustable oil cup, user-friendly carburetor, improved exhaust sound, resonating pipe, quick-slow speed switch, premium materials, and eye-catching design.
this engine is in pre-order now. You can save 20% off now before 30 Aug. Later the Price will arise. the discount code is "HM20"
the first 50 orders get a set of starter kit for free, which will be sent together with your order. you can enjoy the 30% off to buy the base and fuel tank set. code: "B30" this offer is only valid before July 5th.
the first 51-100 orders can save 20% to get a set of starter kit,the base and fuel tank set. this offer is only valid before July 15th.
The RETROL HM-01 engine may be available in different versions. If you choose the RTR (Ready-to-Run) completed version, it means that the engine comes fully assembled and ready to run. You won't need to perform any additional assembly or modifications. Simply follow the provided instructions for fueling and starting the engine, and you should be ready to enjoy its operation.
If your parcel is experiencing delays, it's advisable to first check the tracking information for any updates or notifications regarding the delay. Sometimes delays can occur due to weather conditions, customs clearance, or other unforeseen circumstances. If you believe there is a significant delay or if the delivery timeframe has been exceeded, contact the Stirlingkit for assistance, and further information is recommended. We will give you a refund if it's because of the manufacturing delay.
To start the RETROL HM-01 engine, follow these steps:
1. Ensure the engine is placed on a stable surface and properly secured.
2. Fill the fuel tank with the recommended type of fuel specified in the product documentation.
3. Turn the fuel valve on and ensure there are no fuel leaks.
4. Set the engine's speed control lever to the desired speed (low or high).
5. Use the provided starting mechanism, such as a hand crank or electric starter, to initiate the engine's rotation.
6. Once the engine starts running, adjust the carburetor to achieve a smooth idle and optimal performance.
7. Monitor the engine during operation, making any necessary adjustments as needed.
8. To stop the engine, turn off the fuel valve and allow the engine to run until it exhausts the remaining fuel in the carburetor.
For detailed and specific instructions on starting and operating the RETROL H and M-01 engine, refer to the product's user manual or the documentation provided by the manufacturer.
This engine is in stock now. it has 60pcs available. it will be shiped within 24 working hours after the order is placed. It's selling fast. Hurry up. Notice time: 2024/05/13
the RETROL HM-01 engine typically includes the engine itself. However, it does not include a fuel tank, base, or equipment wooden box,a spark plug, and a CDI igniter. These additional items would need to be sourced separately to complete the setup and display of the engine.
RETROL offers a warranty and customer support for the H and M-01 engine model. The specific details of the warranty, including its duration and coverage, will be provided by RETROL & Stirlingkit. Additionally, customer support channels such as email service@stirlingkit or a dedicated support portal will be available to address any inquiries or issues that customers may have.
For the semi-finished kit version, you may need basic tools such as screwdrivers, wrenches, pliers, and a small file. The specific tools required will be outlined in the assembly instructions. The kit spare parts version and RTR completed version will not require any additional tools for assembly.
Quality of the RETROL HM-01 engine is ensured through meticulous material selection, precision machining, and collaboration with the MUSA factory. Rigorous testing, adherence to first-tier standards, and a focus on reliability and durability are key aspects that guarantee the product's quality.
Very nice H&M model! Very nicely machined and finished with the exception of the counterweights of the crank. Sort of hidden so not a huge deal. Not a perfect casting, so some voids are visible. I don't see any other issues in the machined areas.
The tapered brass inserts that hold the flywheels in place don't have Jack crews for releasing their grip. If you tighten them and haven't adjusted placement/orientation of the counterweights of the flywheels you're in for a headache. I backed off the screws 1 turn and gently tapped each until I could rotate flywheels on the shaft (Not ideal for tiny screw threads). I should have wrapped a piece of guitar string or a thin paperclip (paperclip probably too much, someone suggested a razor blade, but hope you get the idea) between the brass inserts and flywheels to maintain a gap to allow adjusting. Once everything is where it needs to be, remove this shimming material and tighten the 3 screws.
Alternatively, one could predrill these and cut threads for Jackscrews (Joe Pie's YouTube credit here).
Tracking the shipping in the US is kind of scary. The tracking info is originally all in Chinese. Eventually (if you dig enough) you can find a USPS tracking #. It's still scary until USPS (can be scary too) is in possession of the package. I ordered the complete kit and in a week it was to all to me. Packaged securely, 3 separate boxed items with no damages on arrival, to Massachusetts.
Haven't run this yet. I do get spark, but unsure if the three 9v batteries are sufficient.
All in all this is a really nice kit and I'm glad I spent the extra $$$ for the Retrol/Musa brand. Oh, and thanks to Sterlingkit! I recommend them highly!!
This is my first model engine, and I was a little sceptical on spending that much money especially with the exchange rate, and wondering if it would actually arrive. But I must say that Stirlingkit did a great job in making the process go smoothly. The well wrapped package arrived earlier than expected with no damage. On opening the package I found everything well packaged in foam cutouts and all smaller items in well labelled plastic bags.
One problem was found, the plastic ignition trigger assembly was broken in half with springs exposed. (disappointed). But a email and photo to Stirlingkit and next morning I had a response from Martin explaining it was a known fault and a revised replacement part was sent. Big thanks to Martin at Stirlingkit.
I made my own engine stand, ignition and battery box, and small fuel tank.
I’ve had the engine running, but it will not run at slow speed, I will have to work on retarding the ignition timing. A work in progress hopefully with good results. The engine is well made and goes together easily.
I immensely enjoyed assembling the MUSA RETROL HM-01 7cc, Model KIT which was easily accomplished. After I got it built, I needed to do more, like making it into a portable engine. I found the right wheels for the look wanted and fabricated the running gear. Adding a choice wood tray from Hobby Lobby finished off the display. Overall, a “GREAT” model from Stirling kit added to the collection. THANKS. **PS: Still looking for a functional model Windmill, and a side shaft cam stopper model.
The Retrol HM-01 engine from Stirlingkit not only looks good but it runs great as well, So many of these models come from the factory set up to run as fast as possible, The opposite to what enthusiasts want, but they got it right this time.
The quality of machining of this engine is second to none. the fit/finish is perfect.
The wooden base really sets the engine off and is worth the few extra dollars to get it, Taking it from "Toy" to "Scale Model".
The engine fired up very quickly after the initial build without any issues.
It come with a glass drip lubricator (as prototype) for the cylinder along with two lubrication cups on the crankshaftshaft.
Overall i think this engine equals the quality of something you would expect to pay 4-5x the price for in the USA or UK.
It really is a no brainer, GET IT BOUGHT
Very nice looking and it runs even better then it looks, made a display stand/lamp so it can be enjoyed when not running.
Not really impressed with the customer service. Took about 5 weeks, and many emails to get a replacment part for the part that arrived broken.
The engine is very impressive now that it runs however.
