High Quality Engine Kit
The HM-01 hit n miss engine kit is very well designed and manufactured. The kit went together easily and ran well on the first start up.
The RETROL HM-01 7cc Model Hit and Miss 4-stroke Horizontal Internal Combustion Engine is a 7CC 4-Stroke & Inline Engine precision-engineered by RETROL. Features construction machined from metal and operating on Gasoline 92# or Above. Available for $389.99 USD with free worldwide tracked shipping, 30-day returns, and replacement parts support at Stirlingkit.
| Material | Metal |
|---|---|
| Brand | RETROL ENGINE |
| Form | KIT Version/ RTR Version |
| Color | Racing Red hit and miss enigne |
| Displacement | 7CC |
| Cylinder | Horizontal Single Cylinder |
| Stroke | 22mm |
| Cylinder Diameter | 20mm |
| Cooling Method | Evaporative Water-cooling |
| Lubrication Method | Mixed Oil + Oil Cup Lubrication |
| Startup Method | Manual Startup |
| Ignition Method | CDI Ignition System |
| Spark Plug Type | 1/4-32 Thread ME8 Spark Plug |
| Fuel | Gasoline 92# or Above |
| Lubricant | 4-stroke Engine Oil (Mixed with Gasoline at a ratio of 1:25) |
| Product Weight | 1800g |
| Package Weight | 2000g |
| Product Dimensions | 17 x 13 x 13cm |
| Package Dimensions | 20 x 20 x 20cm |
| Packing | Box |
| Ages | 14+ |
RETROL HM-01 7cc Model Hit and Miss 4-stroke Horizontal Internal Combustion Engine
Features:
Specifications:
.Material: Metal
.Brand: RETROL ENGINE
.Form: KIT Version/ RTR Version
Color: Racing Red hit and miss enigne
.Displacement: 7CC
.Cylinder: Horizontal Single Cylinder
.Stroke: Four-stroke
.Cylinder Diameter: 20mm
.Stroke: 22mm
.Cooling Method: Evaporative Water-cooling
.Lubrication Method: Mixed Oil + Oil Cup Lubrication
.Startup Method: Manual Startup
.Ignition Method: CDI Ignition System
.Spark Plug Type: 1/4-32 Thread ME8 Spark Plug
.Fuel: Gasoline 92# or Above
.Lubricant: 4-stroke Engine Oil (Mixed with Gasoline at a ratio of 1:25)
.Product Weight: 1800g
.Package Weight: 2000g
.Product Dimensions: 17 x 13 x 13cm
.Package Dimensions: 20 x 20 x 20cm
.Packing: Box
.Ages: 14+
Authentic feedback from hobbyists, machinists, and scale model engineers
The HM-01 hit n miss engine kit is very well designed and manufactured. The kit went together easily and ran well on the first start up.
All I can say is this is a sweet Hit and Miss engine. Assembly was straight forward. Fit and finish is good. It starts and runs quite well. Had a small issue with the ignition module (CDI). It crapped out, but that happens sometimes with new electronic components. Stirlingkit is sending a replacement.
This review is coming to you from my experience with the full size antique engines such as hit & miss and also as a machinist for a major defense company for the past 40 years who now is retired & machines & builds scale model engines as a hobby. Also been known to purchase some of the great chinese model offered by Stirling Kit. The Retrol HM-01 is just another great example that Retrol & Stirling kit have designed, machined & built. Exceptional workmanship. Great price & fast shipping service from their US warehouse. My only complaint would be the same as a few other reviews have mentioned is that the ignition timing should have been adjustable by way of a screw. Trying to bend the points tab is a pain in the butt & not very precise. Some people were adjusting the valve timing on the gears in order to change the spark timing & this is not the correct way to adjust the spark timing. So a big thank you to Stirling kit & Retrol for producing the HM-01 engine.
hit/miss engine
Everything went together smothly and without troubles. The instructions are just pictures but found a youtube video that showed all steps. You do need to get your own battery to hook up for the ignition. They say a 9 volt should work. have not hooked it up yet. everything looks really nice.