4 Stroke Jetting "Made Easy"

How Beginners Can Get A Perfectly SMOOTH Running 4-Stroke In Minutes - Even If You’ve Never Touched A Carb Before!

Discover the simple 3-step process of jetting any 4 stroke carb based on signs and symptoms to know if each circuit is rich or lean

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“I am trying to diagnose a starting issue with a 2007 Polaris Outlaw 525 (same engine/carb as KTM 525).  It also has a problem sometime of a hanging idle and erratic throttle control.  With your guide, I believe I either have a partial plug in the idle circuit or I need to go up one size with the pilot jet.  Very good guide!  After adjusting fuel screw out to 3 turns, I find that it starts easier.”

-Howard Koehn,  New Mexico

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5 FRUSTRATING Signs You Have A Carb/Jetting PROBLEM

1. Bogging when accelerating, whether partial or full throttle
2. Takes more than 3 kicks (or 3 seconds w/ E-start) to start at least half of the time
3. Backfiring or loud popping on deceleration when you shut the throttle off
4. Hanging/inconsistent idle - RPM is slow to settle or goes up and down
5. Rich AND Lean jetting symptoms

If you have ANY ONE of these symptoms then...

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You've probably made 1 of these common mistakes that make tuning CONFUSING...

• Tuning and making jetting adjustments based on RPM
• Rebuilding or "Cleaning" the carb with carb cleaner and compressed air
• Installing a new $35 carburetor from Amazon or eBay...
• Making more than 1 change at a time trying to fix what you "think" is the problem
• Setting it to what the "factory" recommends
• Can’t tell if it’s rich or lean, so you're just guessing which way to go
• Just dealing with the symptoms and not doing anything because you're afraid of making it worse
• Following a jetting chart or what other people are using but you're still getting a frustrating symptom

I felt intimidated by carburetor tuning and changing jets because I didn't want to mess something up and blow up my bike...

But I was forced to "figure it out" when I was on a long dirt biking trip in the Rocky Mountains of Colorado and my bike wouldn't start easily or run well unless I made some carb adjustments.

I wouldn't consider myself "smart", but I eventually figured it out, and how to make the tuning process easier and faster.

I also learned what doesn't work and why carb tuning might confuse many people.

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Carb Tuning Is EASIER Than You Think!

Carburetor tuning is not some "mystical black magic" - if it were, then very few people would be able to do it, and we know that's not the case 🙂

It might be confusing if you've made one of the mistakes above, but after years of tuning dozens of 2 stroke and 4 stroke dirt bikes, I've simplified my process into 3 practical steps:

1. Rule Out The Simple Stuff
2. Narrow Down The Circuit
3. Rich or Lean

Often, just ruling out the simple stuff, such as forgetting the choke on or getting rid of old/bad gas can fix the frustrating symptom.

If not, then step 2 is narrowing down which jet circuit is causing the problem, and a common mistake here is tuning based on what RPM the symptom happens. This can be confusing because you might think that a low RPM bog is always the pilot jet and a high RPM bog is always the main jet, but that's not always the case.

The third step is identifying whether the symptom is rich or lean.

Do your ears work?
I'm being serious here 🙂 If you can listen and pay attention to the sound your bike is making, then you can do this final step, which is needed to make an accurate tuning adjustment.

There are distinct sounds that a 4 stroke makes when it's rich and when it's lean, so knowing the difference will tell you which way to go on your jetting.

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Introducing...

4 Stroke Jetting "Made Easy" [Troubleshooting Guide]

It's the beginner's guide to tuning and troubleshooting any 4-stroke carburetor for smooth, efficient, and reliable power even if you've never touched a carb before.

Choose Which Option Is Best For You!

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What's Included:

• The Step-By-Step Beginner's Troubleshooting Guide to Jetting any 4-stroke Dirt Bike Carb (Keihin/Mikuni, etc.) in Minutes (PDF Guide)
• Works with Keihin FCR MX/Slant, PD Pumper/Non, PE or Mikuni TM Flatslide Pumper/Non, VM, or similar carburetors
• Brand New for 2024 [Based on the popular 2 Stroke Jetting Made Easy Guide]!
• Lifetime Access & Support - read, download, & print it from anywhere, anytime.
• Quick Reference Troubleshooting Guide: a practical and quick-to-follow chart to troubleshoot jetting symptoms
• Bonus - A "Time Saving" Personal Jetting chart to record your settings for different elevations (so that you don't waste time tuning because you forgot your previous settings)

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Any Requirements?

• Have basic tools (screwdriver/wrenches/ruler or caliper)
• Know how to turn a screwdriver or wrench (clockwise or counterclockwise rotation)
• Can read and count (jets have numbers stamped on them for sizes)
• Know how to record a measurement (float height - if needed)
• You can work with gas (some jet changes require quickly draining the gas from the carb)

How Long Will This Take?

• 30-60 Minutes to read the entire PDF guide (depending on your reading speed)
• Or 5-10 minutes to read one jetting circuit instructions
• 1-5 minutes to make most major jetting changes
• Or 15-60 minutes for some less common jetting changes

What Dirt Bikes Will This Work For?

This will work on any 4-stroke dirt bike or motorcycle with a conventional carburetor that has a pilot jet, needle, main jet, and float that control the air-fuel mixture.

This means that you can use it on a Honda CRF50F, Kawasaki KLX140, Yamaha YZ450F, and any bike in between (and more!)

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What you will learn in this 4 Stroke Jetting "Made Easy" Guide:

• How to cure "Bogging", whether it's low or high RPM
• How to easily tune a jet circuit in minutes
• How to know which jet circuit to change
• How to know if your bike is running RICH or LEAN - even if you're new to carb tuning
• How to diagnose and troubleshoot a "hanging/inconsistent idle" in minutes
• How to get better power without ruining or blowing up your engine
• What to do when changing jets doesn't work

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How Long Do You Want To Struggle With A Dirt Bike That's Hard To Start or Has A SCARY Bog?!

You might be able to figure it out on your own, like I did, but at what cost?

YEARS of comfort and confidence on the trails, translating to more ENJOYMENT, and safety, and conquering the challenge of tight or technical trails because you have a smoother and reliable running 4-stroke?!

Or, you could take the faster route by learning from MY mistakes and discovering the simple steps to troubleshoot and tune the jets in your 4 stroke carburetor - in less than 1-hour of training!

This price is insanely low for how quickly you can master the basics of jetting - it's an art that anyone can learn.

The choice is yours...