Medium
30-60 minutes
This is a genuine OEM sourced replacement part which is specially designed for use with Ryobi handheld lawn and garden equipment. The ignition module also known as armature-magneto provides the current for the ignition system by producing pulses of high voltage for the spark plugs. Unfortunately, over time components will wear out and they may begin to fail eventually requiring a replacement. Keep in mind it is made of high-quality metal with a rubber insulated spark plug boot and is sold individually.
Ignition Module 850108031
OEM part for: Ryobi
Part Number: 850108031
$16.39
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 10 machines
Ryobi
RY28140 (SS26) String Trimmer View Diagrams & Manuals
RY28100 String Trimmer View Diagrams & Manuals
RY28120 String Trimmer View Diagrams & Manuals
RY28121 26CC String Trimmers View Diagrams & Manuals
RY28141 26CC String Trimmers View Diagrams & Manuals
RY28160 26CC Brushcutter View Diagrams & Manuals
RY28161 26CC Brushcutter View Diagrams & Manuals
RY39506 Hedge Trimmer View Diagrams & Manuals
RY28101 RY28101 26CC String Trimmers View Diagrams & Manuals
RY28140 26cc String Trimmers View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
- Hedge Trimmer Parts
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It worked
It worked
Guest -
November 5, 2021
Verified Purchase
perfect
great
Guest -
June 3, 2020
Verified Purchase
Part arrived quickly, great quality
Was easy to install, trimmer started right up on first pull
Guest -
September 19, 2019
Verified Purchase
Exact part needed
Received it in good time. Installed just as it should have. String trimmer would not crank, AND NOW IT DOES.
Guest -
August 12, 2019
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Would not start, no fire to spark plug.
DAVID - September 7, 2016
👍 5 of 6 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
1. Disassembled outer motor cover.
2. Removed old ignition module.
3. Installed new module, only has 2 screws.
4. Checked air gap.
5. Reapplied motor cover.
6. Started up on first try.
2. Removed old ignition module.
3. Installed new module, only has 2 screws.
4. Checked air gap.
5. Reapplied motor cover.
6. Started up on first try.
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No fire to the spark plug
Richard - November 16, 2017
👍 4 of 5 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Power Drill, Socket set, Vice to hold the trimmer in a vertical position.
Parts Used
1. Remove the cowling from the trimmer.
2. Remove the screws that hold the engine to the frame positioning the engine to access the coil.
3. Remove the old coil.
4. Replace the coil with extra space between the coil and the flywheel.
5. Rotate the flywheel to align the magnet with the coil.
6. Place a index card between the magnet and the coil, loosen the mounting screws to allow the magnet to pull the coil to the flywheel and tighten the screws and remove the index card.
7. Reattach the motor to the frame and replace the cowling.
2. Remove the screws that hold the engine to the frame positioning the engine to access the coil.
3. Remove the old coil.
4. Replace the coil with extra space between the coil and the flywheel.
5. Rotate the flywheel to align the magnet with the coil.
6. Place a index card between the magnet and the coil, loosen the mounting screws to allow the magnet to pull the coil to the flywheel and tighten the screws and remove the index card.
7. Reattach the motor to the frame and replace the cowling.
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Ryobi gas leaf blower would not start
David - July 1, 2018
👍 2 of 3 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set
Parts Used
Took blower apart (about 15 screws) to locate ignition coil. Removed coil and replaced with new coil. Set gap with a business card and began putting it back together. No screws left over. Started after a couple pulls and runs very well.
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Ryobi Gas blower wouldn't start...failed spark test
Byron - December 7, 2017
👍 3 of 5 people found this instruction helpful
Tool Type
Blower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Pliers, Socket set, Star wrench 2 different sizes for the Ryobi gas blower
Parts Used
Both sides of the engine cover have to be removed to access the ignition coil. I used a trying piece of cardboard from the spark plugs package to gap the magnetic head on the new coil. Once spaced tighten the screws and reinstalled the engine covers. Reattached the spark plugs plug wire & throttle cable, primed the engine and it's running like new.
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Compression low
ROBERT - October 26, 2019
Tool Type
Trimmer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set
Parts Used
Replace it
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Bad coil, bad carburetor
JAMES - April 11, 2019
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Pliers, Socket set, Wrench Set, As explained.
Take motor and clutch apart to get to the coil.. re installed the motor housing. Replace carburetor.. done and working
The repair was accomplished and turned out eith the motor running. I want to thank the associate for helping me order the parts I needed.
The repair was accomplished and turned out eith the motor running. I want to thank the associate for helping me order the parts I needed.
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Rodents chewed through spark plug wire on my Ryobi blower!
kirk - April 25, 2018
Tool Type
Trimmer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Power Drill, Torx bits, flashlight
Parts Used
This is for my Ryobi gas blower. Google search found the ignition module at eReplacementparts.com and more importantly, their video on how to install. Just followed the instructions on the video and blower is back in operation again. Total time to complete less than an hour. If I had to do it again, I could do it in half the time.
To anyone reading this review:
1. Pay attention to the screws when taking things apart. There are two different types; one for plastic and one for metal, and they look really similar.
2. DON'T forget to set the gap on the magnetic pickup. The magnets on the flywheel will prevent you from pulling the rope, and you'll have to take it apart again.
Thank you for an excellent video tutorial, easy ordering and speedy shipping!
To anyone reading this review:
1. Pay attention to the screws when taking things apart. There are two different types; one for plastic and one for metal, and they look really similar.
2. DON'T forget to set the gap on the magnetic pickup. The magnets on the flywheel will prevent you from pulling the rope, and you'll have to take it apart again.
Thank you for an excellent video tutorial, easy ordering and speedy shipping!
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Thanks for voting and helping fellow customers!
Trimmer would not start.
Russell - June 2, 2017
👍 2 of 4 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Hard
Time
1-2 hours
Tools Used
Screwdriver, vise grips and home made guide to align screw holes
The long story.
Last summer brought the trimmer to a Ryobi repair center to fix the spool which was stuck, I could not remove it and did not want to damage the trimmer.
Since then I've had nothing but problems with the trimmer running properly.
So decided on a carb replacement and ignition assy. replacement.
1) Carb replacement went well with no gotcha's.
2) Ignition had two complications for me.
a) After disassemble of the housing and ignition replacement, I found it difficult to reassemble. In ;the end I used a wire(Like a wire clothes hanger section) to insert into one of the screw holes in the housing then through the screw hole in the starter assembly. So they would align when I tried to insert the engine into the housing.
b)Second was the ignition module was in contact with the magneto or flywheel and binding so I could not pull to get the engine to turnover. After several disassembles and reassembles, I saw that the Ignition module had to be adjusted not to hit the flywheel.
After all of the above, trimmer runs like new.
good luck
Last summer brought the trimmer to a Ryobi repair center to fix the spool which was stuck, I could not remove it and did not want to damage the trimmer.
Since then I've had nothing but problems with the trimmer running properly.
So decided on a carb replacement and ignition assy. replacement.
1) Carb replacement went well with no gotcha's.
2) Ignition had two complications for me.
a) After disassemble of the housing and ignition replacement, I found it difficult to reassemble. In ;the end I used a wire(Like a wire clothes hanger section) to insert into one of the screw holes in the housing then through the screw hole in the starter assembly. So they would align when I tried to insert the engine into the housing.
b)Second was the ignition module was in contact with the magneto or flywheel and binding so I could not pull to get the engine to turnover. After several disassembles and reassembles, I saw that the Ignition module had to be adjusted not to hit the flywheel.
After all of the above, trimmer runs like new.
good luck
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
