So if it glows i got a bad ignition coil?

If you see a spark (glows) you have a good ignition coil.

Will this work on glow plugs?

It will test glow plugs......once. lol no this is not for glow plugs

does the ammount of light emitted from bulb signify weak or strong ignition ? should it be real bright?

It depends on the ignition system on the vehicle being tested. A lawn mower my emmitt a lesser light than an auto ignition. A full light may indicate a weak coil pack however when checking multiple plugs.

Is this good for an outboard

Yes. I have used it on many things and believe it will work on anything with a spark plug.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Ram-Pro Inline Spark Tester, Plug Engine Ignition 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Small & Big Internal/External Engines

Product ID: 31653071

Details

Brand
RamPro
Color
Black
Item Weight
2.2 Ounces
Power Source
Corded
Style
Tool

⚡6-12V voltage range

💡Replaceable internal bulb

🔧Nickel-plated durable shaft

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1.30 OMR

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In stock

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Description

⚡ Never be left in the dark—spark your engine diagnostics to life!

COMPACT LIGHTWEIGHT - Only 2.2 oz with a 6" boot and 5" shaft for effortless handling on the go.
INSTANT SPARK DIAGNOSIS - Quickly identify ignition faults and save hours troubleshooting.
DURABLE FLEXIBLE DESIGN - Nickel-plated shaft with double-ended flexible probe for hard-to-reach spots.
LONG LASTING ILLUMINATION - Internal bulb lasts for years and is easily replaceable through transparent housing.
UNIVERSAL ENGINE COMPATIBILITY - Works seamlessly with cars, lawnmowers, motorcycles, and more.

The Ram-Pro Inline Spark Tester is a professional-grade diagnostic tool designed for 6-12 volt internal combustion engines. Featuring a nickel-plated shaft and a replaceable internal bulb, it offers reliable, fool-proof spark detection for cars, lawnmowers, motorcycles, and more. Lightweight and compact, it delivers instant ignition troubleshooting to save time, money, and frustration for mechanics and enthusiasts alike.

Specifications

ASIN	B01HU2L1NU
Best Sellers Rank	#39,350 in Automotive ( See Top 100 in Automotive ) #7 in Ignition Testers
Brand Name	RamPro
Color	Black
Compatible Devices	Internal Combustion Engines
Customer Reviews	4.5 4.5 out of 5 stars (6,739)
Global Trade Identification Number	00815518023317
Item Weight	2.2 Ounces
Manufacturer	MIX N MORE INC
Minimum Operating Voltage	6 Volts
Model	2331
Part Number	2331
Power Source	Corded Electric
Style Name	Tool
UPC	815518023317
Unit Count	1 Count

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