It is an authentic replacement ignition module. It is sourced from original equipment manufacturer for use with Ryobi trimmers/brushcutters. The purpose of an ignition module also known as armature-magneto is to provide electric current for the ignition system by producing pulses of high voltage for the spark plugs. It is made out of metal with rubber spark plug boot. Includes one (1) module per order. To complete this repair you would need screwdriver set. • Remove the spark plug boot • Remove the air filter housing • Remove other shrouds/housings • Disconnect ignition wires • Disconnect spark plug boot • Face flywheel magnet to ignition module position • Install new module in place • Reassemble and test the unit
Troubleshooting
This part works with the following brands:
Homelite
Ryobi
This part works with the following products:
Trimmer
Part# 850108008 replaces these:
850108008,
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Customer Part Reviews
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4.3
Average Rating (out of 5):
★★★★★
★★★★★
(3 Reviews)
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★★★★★
★★★★★
BOLTED RIGHT IN
Typical part from Replacement in that it fits perfectly and bolts right in. I've been doing business with eReplacementParts.com for a long time and have never been disappointed with any of the replacement parts I get from them. And the same applies here with this part.q
Dorald - June 7, 2021
Verified Purchase
★★★★★
★★★★★
Ignition module
This was in great condition and came in very quickly.
Guest - July 18, 2023
Verified Purchase
★★★★★
★★★★★
wrong part
Great service and fast shipping but the part I received was not the part I need it for my specific weedeater.
Guest - August 11, 2021
Verified Purchase
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1. Remove all covers on trimmer motor. This includes the screws that hold the pull start reel to the case
2. Disconnect the two wires for the remote stop switch.
3. Remove the two screws that hold the magneto coil to the engine. Remember how close the old pickups are to the fly wheel. This is very important in that if this ad
... Read morejustment is wrong on the new installation, the motor will not fire.
4. Swap out the old coil with the new one threading the screws into the elongated holes in the coil only slightly tightening the screws.
5. Adjust space between the pickups and the flywheel.
6. Tighten screws on coil mount.
7. Reconnect remote stop wires.
8. Reassembly the case making sure that you properly align the pull start reel with the case. Misalignment will not allow the pull start rope to deploy.
Once assembled, attempt to start trimmer. If no spark, check alignment of the coil to flywheel.
I had to remove the motor from the housing and disconnect it from the shaft. Once this was done I removed the ignition module and replaced it with the new one. Then I space the distance between the flywheel and ignition at 0.014, I then put it all back together.
1. Disconnected spark plug wire
2. Removed spark plug
3. Separated back motor fairing from front motor pulley housing
4. Used special bits to remove Ignition Module.
5. Used business card to gap module and flywheel magnet,tightened screws
6. Rejoined motor fairing and motor housing
7. Installed spark p
... Read morelug
8. Connected spark plug wire
9. Started engine, first pull
Removed plastic covers.
Disconnected wires to magneto.
Removed magneto.
Replaced with new one.
Gapped magneto magnet to the fly wheel with a credit card.
Reassembled covers.
Started engine and fined tuned the carburetor.
I toke the case apart removing the four screws on the front of the machine disconnecting the shut off wire, for me the most important is to set the gap of the magnet to the coil I used a piece of very thing strip of plastic from water bottle to set the gap and it works.I also separated the screws on the order I was taking off so I donGÇÖt
... Read more get confuse as I installing back.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP18789555
Manufacturer Part Number: 850108008
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
