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- Product Details
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Quick Details
-
Warranty:
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1Year
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Product Name:
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CQJB Engine Motorcycle 250CC Air-Cooled Motorcycle Engine Assembly
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Fit for:
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Motorcycle
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Model:
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250CC
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MOQ:
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10PCS
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Material:
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Iron
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Color:
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Black
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Packing:
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Plastic Bag +Paper box
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Quality:
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A-CLASS
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Shipping:
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Sea,air,railway
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Specifications:
-
Standard
Quick Details
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Displacement (ml):
-
250CC
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Place of Origin:
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Chongqing, China
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Brand Name:
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CQJB
-
Warranty:
-
1Year
-
Product Name:
-
CQJB Engine Motorcycle 250CC Air-Cooled Motorcycle Engine Assembly
-
Fit for:
-
Motorcycle
-
Model:
-
250CC
-
MOQ:
-
10PCS
-
Material:
-
Iron
-
Color:
-
Black
-
Packing:
-
Plastic Bag +Paper box
-
Quality:
-
A-CLASS
-
Shipping:
-
Sea,air,railway
-
Specifications:
-
Standard
Products Description
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Product Name
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Motorcycle Engine Assembly
|
|
Model
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250CC
|
|
Net Weight
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35KG
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|
Material
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Iron
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|
Size
|
Standard
|
|
OEM
|
Accept
|
|
MOQ
|
10 PCS
|
|
Brand
|
CQJB
|
|
Color
|
Black
|
|
Package
|
Plastic Bag+Carton
|
Specification
1.The whole body is made of iron
2.Manual welding and polishing
3.Different tube size and thick optional
4.Never have crack and leakness problems
Feature
1.Suitable for motorcycle .
2.Corrosion resistance and durability.
3.Installed directly.
1.The whole body is made of iron
2.Manual welding and polishing
3.Different tube size and thick optional
4.Never have crack and leakness problems
5.E
ngine parameters：
Model: 172FMM-2
Dimensions length x width x height (mm): 360x337x430
Type: four-stroke, single cylinder, air-cooled, vertical
Net weight (kg): 34
Pressure letter ratio: 8.8:1
Displacement (mL): 250
The measured maximum net power/corresponding speed KW/r/min: 14.3/7500
Measured maximum torque/corresponding speed N.m/t/min: 19.6/6500
Bore x stroke (mm): 72x61.4
Ignition method: CDl
Clutch type: wet multi-plate
Accelerator type: Six gears
6.
1. Performance advantage: The performance advantage is obvious: the current maximum net power reaches 14.3/7500kW/(r/min), and the maximum torque is 19.6/6500 N·m/(r/min), which is better than the peer level.
2. Advantages of medium and low speed performance: adjust the shape of the combustion chamber and control the height of "squeeze flow" to 1~1.25mm; it is beneficial to the turbulence of the airflow before the combustion of the engine: at the same time, the area of the intake port is reduced to less than 600 mm2, so that the intake port is in the Smoothing within a limited cross-section increases flow velocity and suction inertia. The above changes have improved the engine's torque and governing performance at low/medium speeds.
3. Temperature advantage: the compression ratio is reduced, the heat sink is enlarged, and the right cover is added with an oil cooling system, etc., which greatly reduces the problem of high temperature of the engine with the same displacement, and improves the reliability of the whole machine and the durability of each component. At present, the temperature of the spark plug gasket of the engine is controlled within 240°C, and the oil temperature is controlled within 120°C.
Fourth, the long connecting rod state can reduce the eccentric wear of the piston and greatly enhance the reliability of the piston.
5. Roller camshaft rocker arm system, lightweight valve mechanism: reduce the friction between the rocker arm and the camshaft, the valve returns more timely, improve the engine speed, performance, reliability and durability, and reduce fuel consumption.
6. Eccentric Crank Mechanism: Optimizing Energy Utilization
7. External balance shaft technology + spring damping structure: The external balance shaft makes the engine run more smoothly, with less vibration, low noise, simplified structure, and convenient maintenance; the balance shaft gear adopts spring damping + stop pin structure, which is stable and reliable.
8. Shifting system with double shift fork shafts and short shift paddles: learn from the double shift fork shafts and shift shafts of the Honda Warhawk system, with accurate operation and light shifting.
9. Primary driving gear combination with main and auxiliary teeth structure: the primary driving gear has auxiliary teeth, which can eliminate gear backlash, reduce transmission noise, and improve sound quality.
Feature
1.Suitable for motorcycle .
2.Corrosion resistance and durability.
3.Installed directly.
Recommend Products
Exhibition
at the factory.
Sign sample order contract with customer at Kenya exhibition.
Manufacturing Technique
CQJB
We are a company with independent production capacity .The factory has more than 20years of production experience .We look forward to bringing you quality and satisfactory service.
Our service
1.Working time :Monday to Saturday Beijing time (GMT+8) 7:30-22:30.
2.Reply within 8 hours .
3.Convenient logistics traking query.
4.Can be made as your own logo,your own brand.
5.OEM is available ,according to customers' drawing or samples.
6.Factory direct sales with competitive price.
7.If the stock is avaailable ,we normallyarrange them in 48 hours after you pay.
Trading Process
Certifications
FAQ
Q1:Why choose JB in this big market?
A: We always take the interests of customers as the starting point, truly do for customer service, customer to solve problems.
Q2: When can get the price ?
A:The quotation will be answered after both parties confirm the specific questions such as product model.
Q3: How can get a sample to check quality?
A:Some samples could be free for you , for the freight we can discuss after. Usually, the sample will be sent within one week. It
depends on the stock.
Q4:When will the goods be delivered?
A:After the goods are confirmed through negotiation, we will send the sample list within 3-5 days. We will send the bulk order
with customized products within 30 days.
Q5:What is your terms of payment?
A: 1.Full payment before delivery .We'll show you the photos of before you pay the balance.
Q6: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
A: 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come
from.
A: We always take the interests of customers as the starting point, truly do for customer service, customer to solve problems.
Q2: When can get the price ?
A:The quotation will be answered after both parties confirm the specific questions such as product model.
Q3: How can get a sample to check quality?
A:Some samples could be free for you , for the freight we can discuss after. Usually, the sample will be sent within one week. It
depends on the stock.
Q4:When will the goods be delivered?
A:After the goods are confirmed through negotiation, we will send the sample list within 3-5 days. We will send the bulk order
with customized products within 30 days.
Q5:What is your terms of payment?
A: 1.Full payment before delivery .We'll show you the photos of before you pay the balance.
Q6: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
A: 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come
from.
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