Alright, let’s talk about the 04 Honda Shadow 750 specs. Not because I just woke up thinking about them, no sir. This stuff usually comes up when you’re elbow-deep in grease, or trying to help someone who’s about to be.

So, The Story Begins…
It all started last week. My buddy, Kevin – good guy, but sometimes gets in over his head – calls me up. “Hey,” he says, “I picked up an ’04 Shadow 750. Got a good deal!” I already knew where this was going. A “good deal” usually means a “good deal of work.” He wanted to do a basic service, you know, oil change, check the plugs, that sort of thing. Smart. But then he hits me with, “You wouldn’t happen to know the oil capacity offhand, or what kind of spark plugs it takes, would ya?”
Now, I’ve been around bikes a long time, but I ain’t a walking encyclopedia for every model and year. Especially when it’s a bike that’s getting on a bit in age. So, the hunt for the 04 Honda Shadow 750 specs was on. Not for me, really, but to guide him. You try to help a friend, you know?
The “Easy” Search
First, I figured, “Ah, this’ll be quick.” Fired up the old computer. Typed it in. And down the rabbit hole I went. You’d think for a popular bike like the Shadow, this info would be plastered everywhere, clear as day. Well, yes and no.
Here’s what I ran into:
- Forum post from 2008: “Yeah, I think it’s about 3 quarts, give or take.” Super helpful, right?
- Another site: Had specs, but was it for the Aero, the Spirit, or some other version they had that year? Details, people!
- Then you get the sites that look like they were designed in 1999, full of ads, and you’re scared to click anything.
Honestly, it reminded me of the old days, pre-internet, when you actually had to buy the Clymer manual or hope the local dealer’s mechanic was in a good mood. Sometimes I miss just having that one trusty book, even if the pages were stuck together with oil stains.

I even dug through my garage for a bit, thinking I might have an old generic Honda manual. No dice. Just a pile of stuff my wife keeps telling me to throw out. “It’s gold!” I tell her. Sometimes it is, sometimes it’s just old spark plug boxes.
What This Whole Thing Got Me Thinking About
This whole spec hunt, for something so simple, really got me stewing. It’s like, we have all this information at our fingertips, right? But sifting through the noise to find the actual, reliable truth can be a chore. Everyone’s an expert, everyone’s got an opinion, but good, hard data? Sometimes it feels like panning for gold.
And don’t even get me started on trying to find consistent info on older models. It’s like there’s this black hole for bikes between 15 and 25 years old. They’re not “classic” enough for the hardcore restoration crowd to have every nut and bolt cataloged online, but they’re old enough that the manufacturers have moved on, and official support is fading. You end up relying on guys like me, who’ve just been around a while and remember a few things, or dedicated owner groups if you can find a good one.
It’s a bit like that old job I had, working a parts counter. Guy comes in, needs a “thingamajig for a whatsit.” You spend half an hour deciphering what he actually means, then another half hour trying to find if the part even exists anymore. Frustrating, but also kinda satisfying when you finally nail it.
So, What Did We Find?
Eventually, after a fair bit of clicking and cross-referencing, we pinned down the key stuff for his ’04 Shadow 750. We found out it’s got that 52-degree V-twin, liquid-cooled, thankfully. The important bits like:

- Engine Displacement: Around 745cc, naturally.
- Oil Capacity: This was the big one for him. It’s usually around 2.5 to 2.8 U.S. quarts after a drain and filter change, but you always double-check with the dipstick. Never just dump it in.
- Spark Plugs: Typically NGK DPR7EA-9 or equivalent. Gap’s important too.
- Valve Clearances: If he ever gets ambitious. Intake is usually around 0.15mm, exhaust 0.20mm, cold. But again, verify, verify, verify for the specific model variant he has (Aero, Spirit, etc., they can differ slightly).
We also talked about the chain drive on his specific model (some had shafts later or in different lines, that’s Honda for ya), and why keeping that clean and lubed is key. Tire pressures, simple stuff, but often overlooked.
The point is, the specs are out there. You just gotta be patient and a little bit skeptical of the first thing you read. Took us a good hour, a couple of coffees, and me resisting the urge to just go over and do it myself. But hey, he’s learning. And that’s the point, right? Keeping these old soldiers on the road and sharing a bit of what you’ve picked up along the way. Even if it starts with a simple question about specs.