Nitro Engines Ninja JX21-B07 off-road nitro engine août 1, 2024 by Chris Laisser un commentaire Mugen Seiki have introduced the new Ninja JX21-B07 off-road nitro engine. The innovative JX21-B07 engine includes the easy to tune 21J4 carburetor with 6.5mm reducer. The carburetor provides great power that is easy to drive, provides consistent tuning, and is fuel efficient. The Ninja B07 engine has a square bore and stroke which has smoother power characteristics and improved fuel consumption. The DLC coated crankshaft is tungsten weighted. The lightweight cooling head has a lower center of gravity and provides exceptional cooling and stable operating temperatures. Also new for the Ninja B07 is the rear backplate that includes a steel thrust plate. Features: 3-port configuration delivers great power and fuel consumption. Square bore / stroke design provides smooth power and improved fuel consumption. Easy to tune fuel-efficient 21J4 carburetor. Tungsten weighted and silicone filled crankshaft with DLC coating. Backplate with steel thrust plate. P3 turbo glow plug. Aluminum 6.5mm reducer. Dust cap set. Source: Mugen Seiki PartagezTweetez0 PartagesAbout ChrisFounder of circusrc.com, journalist & photographer in the RC world for several years, Chris is passionate about RC, racing and technique. Whether in France or in the world, he is trying to bring high-quality information and photos for enthusiasts... and make you want to join the world of RC!