Shin Yea Cygnus Style Intake Manifold Spacer
Shin Yea Cygnus Style Intake Manifold Spacer
$23.62
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
Shin Yea 9mm Cygnus-Style Intake Manifold Spacer is a replacement intake manifold assembly for compatible 139QMB scooter engines.
Key Details
- 169-589
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Code: 139QMB
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Additional information
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 4 × 4 × 1 in |
| Condition | New |
|---|
Clearance for Power: Shin Yea Cygnus-Style Intake Spacer
Unlock the space needed for high-performance fueling with the Shin Yea Intake Manifold Spacer. Specifically engineered for "Cygnus-style" cylinder heads, this spacer provides an essential 9mm of additional height. This clearance is critical for builders running oversized carburetors on 232cc or larger GY6 projects, preventing interference between the intake assembly and the scooter’s frame or engine casing.
Technical Performance Features
- Precision Tapered Bore: Features a professional taper from 35mm on the intake side down to 32mm at the engine side, maintaining high intake velocity and smooth airflow into the head.
- 9mm Vertical Lift: Provides the exact offset required to clear the starter motor or frame rails when upgrading to larger PE, PWK, or TM series carburetors.
- Complete Installation Kit: Comes ready to install with two high-temperature gaskets, ensuring a vacuum-tight seal right out of the box.
- Made in Taiwan: Manufactured by Shin Yea, a leader in GY6 performance, utilizing high-grade aluminum to resist warping and heat-soak.
Comprehensive Fitment Guide
This spacer is designed EXCLUSIVELY for high-performance Cygnus-style heads and will not fit standard GY6 150cc engines:
| Engine Type | Build Compatibility |
|---|---|
| GY6 150cc (Cygnus Head) | Specialized 4-valve or oversized 2-valve Cygnus-style conversions |
| Big Bore Builds | Ideal for 212cc, 232cc, and custom long-stroke 4-bolt engines |
| Standard GY6 | WILL NOT FIT standard 2-bolt 152QMI/157QMJ heads |
Technical Specifications
- Bolt Hole Spacing: 50mm
- Inner Diameter (Top): 35mm
- Inner Diameter (Bottom): 32mm
- Spacer Height: 9mm
Regulatory Notice
This product is not intended for use on public roads or land.
Mechanic's Note: When building a 232cc monster, every millimeter of clearance counts. Pro Tip: Use a tiny amount of gasket sealer on the spacer surfaces to ensure 100% vacuum integrity. Because this spacer adds height, double-check your **Throttle Cable** length to ensure it doesn't bind when the engine is at full travel!
SKU: 169-589
MPN: MA-000-05-K
Vendor: Shin Yea
