Basic Specifications
Model NO.:MS070 090 720 D
Type:Chainsaw Parts
Material:Part List
Transport Package:Carton
Specification:Standard
Trademark:Ruicomps
Origin:China
HS Code:8467810000
Production Capacity:100000 PCS/Year
Product Overview
To unlock the full potential of the MS070 chainsaw, one must delve into the intricacies of its ignition system—a cornerstone of engine performance, reliability, and efficiency. The accompanying design diagram is not merely a technical illustration; it is a blueprint that encapsulates decades of engineering refinement.
Component 24 - The Flywheel: A marvel of magnetic engineering. Constructed from a robust alloy housing embedded with high-performance magnets, it serves as a rotational mass and generates the magnetic field essential for power generation.
Component 1 - The Ignition Coil: Composed of primary and secondary copper windings, the coil transforms low-voltage energy into high-voltage sparks (exceeding 20,000 volts) required to ignite the air-fuel mixture.
Component 3 - The Ignition Module (CDI): This unit is responsible for timing the spark with millisecond precision, maximizing power output and fuel efficiency.
Detailed Technical Specifications
| Refer No. |
Part No. |
Description |
MOQ |
Remark |
| 1 | 0000 989 0810 | Grommet | Negotiation | - |
| 2 | 0000 992 5820 | Sealing ring | Negotiation | - |
| 3 | 1106 400 0705 | Stator plate | Negotiation | - |
| 4 | 1106 404 3210 | Ignition coil | Negotiation | - |
| 9 | 1115 404 3400 | Capacitor | Negotiation | - |
| 21 | 1106 400 1206 | Flywheel | Negotiation | - |
Component Highlights
Operational principles of the MS070's ignition system represent a symphony of electromagnetism. The flywheel key (Component 28) ensures indexing to the crankshaft, while washers and spacers (26 and 27) maintain critical axial clearance. The entire system is built to survive extreme thermal shocks and mechanical vibrations.
Frequently Asked Questions (FAQ)
Q1: Which chainsaw models are these ignition parts compatible with?
These parts are designed for Stihl MS070, 090, and 720 chainsaw models.
Q2: What is the primary function of the flywheel in the MS070 system?
The flywheel acts as a rotational mass to smooth engine operation and generates the magnetic flux necessary for the ignition coil to create a spark.
Q3: Why is the ignition timing so critical for two-stroke engines?
Precise timing via the CDI module ensures combustion happens at the optimal moment, maximizing power output and preventing engine damage.
Q4: What materials are used in the ignition coil?
The coil uses high-quality copper windings for conductivity and is encapsulated in heat-resistant epoxy to withstand engine vibrations.
Q5: How can a sheared flywheel key affect the engine?
A sheared key causes the ignition timing to go out of sync, leading to misfires, hard starting, or a total failure to start.
Q6: Are there specific maintenance requirements for the spark plug cap?
Regular inspection for cracks or insulation wear is essential to prevent high-voltage arcing that disrupts the ignition sequence.
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