Mike Roen

Introduction to M8 Softail Service

Mike Roen
Duration:   5  mins

Description

Harley Davidson introduced Softail models for the first time in 1986. By positioning two rear shocks beneath the motorcycle, they were able to achieve the appearance of a rigid, “old school” looking frame. Between 1986 & 1999, Harley Davidson Softail’s consisted of the Fatboy, Heritage Softail, FXST, and Springer models. Future models included the Deuce, Deluxe, Breakout & Slim.

2018 & newer Harley Davidson Softail models will retain their classic appearance, but have some big changes. The entire 2018 & newer M8 Softail lineup has a completely redesigned chassis, new underseat, hidden, single shock, and the new Milwaukee Eight V-Twin engine. This new engine is offered in 107 or 114 cubic inch displacement. The 45 degree, four valve per cylinder M-8 V-Twins now have dual counter balancers.

All 2018 & newer M8 Softail cruiser motorcycles use a newly designed frame that reduces overall weight by up to 35 pounds and improves handling and ride quality. The new frames offer three steering head angles in 28, 30, and 34 degree rakes. There is a a “standard” and “high” ride height and a “wide” or “narrow” swingarm depending on the model. There are a total of eight new models (12, when counting the 114 variations). All new models have a commonality which will allow for an unprecedented interchangeability of parts with the potential for a whole new level and ease of customization potential.

As Mike gives us an overview of the new Heritage Softail, he reminds us of the importance of the owner’s manual that comes with every new Harley. Every vehicle owners manual has a lot of pages of mundane, common sense info, but these manuals also have a lot of very important information that is necessary to learn as an owner and rider. If intending on doing your own maintenance and repairs, it is also very important to pick up the factory service manual for your year and model, specs can be different. A lot of riders find it hard to separate with the 100 + dollars it will cost to purchase a Harley Davidson service manual but it is actually about the same cost as one hour of labor at the dealership and will pay for itself over and over again.

Follow along as Mike walks us through the factory service check list for the M8 Softail.

We might step off the chart here and there but we cover all required service procedures for the Harley M8 Softail. Click on each title to go to the video. On each video page, at the bottom of the video description you will find a link back to this checklist. We will keep adding videos as they come out of editing.

Tools and Products – Here are a couple links from Bob LaRosa on tools and products they use daily at the shop.

Checklist in your service manual:

M8 Harley Switches and Electrical Check
Milwaukee 8 Oil Drain Plug Location and Removal
Check Front M8 Softail Tire Pressure and Tread
Checking Harley Spoke Wheels for Tightness
Harley Brake Fluid Flush and Inspection
Harley Front Brake Pad Inspection and Replacement
Inspect and Adjust M8 Harley Steering Head Bearings
Inspect Harley Windshield Bushings
Check Harley Hardware on Switch Housings
Check Front Axle Nut Torque
Softail M8 Air Cleaner Inspection
Replace Drain Plugs and Harley Oil Filter
Refilling Primary Chaincase Lubricant on an M8 Softail
Softail M8 Oil and Transmission Lubricant
Clean and Inspect M8 Harley Oil Cooler
Inspect Harley Oil Lines and Brake System
Harley Fuel Line Inspection
How to Change Brake Fluid on a Harley Davidson M8 Softail
M8 Softail Rear Brake Pad Replacement
Check Harley Rear Wheel Spokes: Tire Pressure and Tread
Inspect and Adjust Harley Drive Belt and Sprockets
Check Rear Axle Nut Torque
Check Rear Fork Spacer Bolt Torque
Check and Adjust the Softail M8 Clutch
Inspect and Lube Jiffy Stand
M8 Softail Harley Davidson Spark Plugs Service
Inspect For Exhaust Leak
Softail M8 Battery Removal and Replacement
Harley Monoshock Adjustment
M8 Motorcycle Safety Check

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2 Responses to “Introduction to M8 Softail Service”

  1. Mark

    along with Owner's Manual & Shop Manual, how's about the Parts Manual?? really makes sure you get correct part when you take H-D p/n to Parts Counter to order replacement parts. Parts Tech should advise about any upgrade to OEM parts since bike manufacturer. just been convenient for me to have correct p/n's. keeps ME involved in my Harley maintenance & repair. marklewis

  2. JOHN

    I am a member and am logged in, but it won't let me watch the rest of the "Introduction to M8 Softail Service" video. It keeps asking me to become a member.

Hey everybody, it's Mike Roen, "Fix My Hog." Got a great new video for you. As you can see, we got Harley's all-new M8's Heritage Softail. Now, everybody's familiar with the old Softail. The bike's been around since 1986, and right out of the gate, the thing was a hit. I mean, it had the cool retro look. It was kind of a new style that was old style, you know? The rear shocks, they took 'em and they tucked 'em underneath the transmission so it gave it that rigid look, you know? And that was kind of the whole deal, as everybody liked that that cool, old school look. And they had the Fat Boy and the Heritage, and they ran that all the way to '99 with the Evo motor. And then in 2000, it got the Twin Cam B motor, 88 cubic inch five-speed. They added a Deuce and a Deluxe, and then eventually in '07, it got the six-speed tranny, 96 cubic inch, couple more models, and then eventually, the 103. Well, that's all changed now. Now, it's a completely new chassis. It still looks similar to what it was, but that's kinda what Harley's trying to do. They want to keep that look. But if you look real close, there's a lot of big changes. We're gonna go over that today. It's got a new frame, new chassis, a Mono Shock rear shock, and of course it got the M8 motor. It's still rigid-mounted, and it's a balanced motor. It's not like the M8 Touring motor because that's still rubber-mounted with one balancer. This has got two balancers, so. And like I said, we're gonna do the full service today. Kinda just touch base on all the new features. Now, you probably bought the motorcycle new 'cause it's a new model. If you do buy it used, make sure you get the owner's manual. It's got a lot of the servicing specs in it, and actually kinda goes through how to do the basic maintenance. But if you're really gonna marry this thing and you're gonna run it out the whole life of the motorcycle, I guess I'd recommend getting the factory manual. They're up to 130 bucks now. Spend the money. It's worth it. If you're gonna be doing all the maintenance, you're gonna want it. The whole tranny, engine, wiring. It's got all the specs pretty detailed. It's well worth the money, so invest in that. And let's just touch base on this again, 'cause if you do buy the manual, here's what Harley does. I'm gonna open this up here and show you. Okay, so when you're looking in the service manual, here's what they do. They go by the letter designation, and the Heritage used to be an FLSTC. Well, they've changed that now. Now it's an FLH, and the code is YA. So, when you're looking in your service manual, it's gonna put down the particular code or the letter designation to what model you're looking up the specs. For torque specs, or however the procedure's done. So, don't fool yourself and start looking up things for an FLDE, the Deluxe. Make sure you're looking at your particular model. That's kinda handy 'cause that's hard to find. People always call me up and want to know what their model number is, and I don't know it off the top of my head. So, that's something you're gonna want to refer to. So, this bike comes with a two-year warranty, and if you're looking in your owner's manual, what they're saying is you don't have to take it to the Harley dealer. They're trying to lead you to believe that you want to go to Harley, and spend the money, and get all the routine maintenance. But in reality, no. You don't have to, to keep your warranty valid. What they do want is detailed records. You're gonna want to date your stuff, you'll want to document the mileage. And really, if you want to do it, maybe you want to go to the dealer and buy OEM. And when I say OEM, original equipment manufacturer. That'll probably help you out. Say you had a catastrophic engine failure. They're gonna be all over your records. They're gonna want to know what you've done, when you did it, and the parts you've used. Now, we do use a lot of aftermarket oils and filters, and they're top brand, so it's gonna be your discretion. If you want to buy OEM, maybe support your local dealer, support your local motorcycle shop and go in and buy all the parts. Have your receipts. Just be prepared because if you do have a problem, it's a big deal, and they can void your warranty. And speaking of voiding your warranty, if you're reading in your manual, they're gonna pretty much know if you do a stage one with a high flow exhaust and a download, that's gonna void your warranty now, is what it sounds like. So, really check with your dealer before you do that, or put the motorcycle back to stock when you bring it in, 'cause they're gonna flag the bike otherwise, so. What we're gonna do is we're gonna start going down the checklist now, and get the service done.
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