CRANKCASE PRESSURE LEAK DOWN TESTER 2-STROKE MOTION PRO 08-0071
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
Motion Pro 2-Stroke Leak Down Tester for detecting air leaks in 2-stroke engines. Includes air pressure gauge, pump-up bulb, and various fittings and adaptors for most single and twin-cylinder 2-stroke motorcycle engines. Features intake adaptors in sizes 35mm, 41mm, 43mm, and 46mm, and expandable rubber exhaust port plugs fitting round ports from 35mm to 60mm. Comes with a carry box and instructions. Made in the USA.
- SKU
- 00-073
- Brand
- Motion Pro
- Availability
- In Stock (1)
- General Product Group
- Workshop Tools & Equipment
- General Product Type
- Engine Tools
- Variant Id
- 201850
FULL DESCRIPTION
Motion Pro 2-Stroke Crankcase Leak Down Tester
Detect air leaks in 2-stroke engines with the Motion Pro 2-Stroke Crankcase Leak Down Tester. Proper pressure testing is crucial for maintaining optimal engine performance and preventing damage. Air leaks can lead to a lean fuel-air mixture, causing engine overheating, piston seizure, and detonation.
Key Features:
- Detects air leaks in 2-stroke engines.
- Includes an air pressure gauge and pump-up bulb.
- Comes with various fittings and adaptors suitable for most single and twin-cylinder 2-stroke motorcycle engines.
- Intake adaptors available in sizes: 35mm, 41mm, 43mm, and 46mm.
- Expandable rubber exhaust port plugs fit round ports from 35mm to 60mm in diameter.
- Conveniently packed in a carry box with detailed instructions.
- Made in the USA.
Important Safety Note: Always wear eye protection to prevent injury from escaping gas or flying particles. It is recommended that this procedure be performed by a qualified mechanic in a properly equipped shop.
Testing Procedure Highlights:
- Ensure cylinder, head, reed cage, intake manifold, and spark plug are installed and torqued correctly. Remove exhaust pipe and carburetor.
- Seal exhaust ports using appropriate rubber expansion plugs or metal plates.
- Insert the correct carburetor adaptor into the intake manifold.
- Pump air pressure into the engine to 6 PSI. Never exceed 8 PSI.
- If pressure is lost, use soapy water to locate leaks and repair as needed. A leakage rate of 1 PSI per minute is acceptable; lower rates yield better performance.
- Listen for leaks at various points, including crankcase seals and power valve areas.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


