I ran the M4 slip-on before I decatted the bike and it's one of the few slip-ons that actually increases the noise level with an otherwise stock exhaust. I think it acts like a megaphone because of it's shape, therefore amplifying the sound. I bet your bike will absolutely scream with the decat/M4 combination.Decatted it and fitted the black M4 slip on that arrived this morning (pulled the baffle of course ) She will now officially "wake the dead"
Throttle response much improved and the sound is awesome with pops and bangs on the overrun..
Very happy, but don't think my neighbours impressed with my revving her in the garage with the door open!
The plugs are long life type, good for minimum of 40,000km, paper air filters are good for around 25,000km, changing oil regularly is sound practice, im sure these engines are good for 100,000km plus if maintained well, stock the valve clearences probably wont change by more than a thou or 2 over that period as the suzuki steel valves are high quality.I performed the 15K service (minus valve check, plus new Michelin Road 5's) on my 2016 F model.
I follow the European maintenance schedule which doubles the service intervals shown on the US schedule. The only exception is that I change the oil and filter every 5K miles (I use Honda Pro GN4 dino oil in all my bikes, and have for years).
Original spark plugs still looked perfect.
Original air filter was surprisingly clean and there was no oil or water in the air box.
I could only get a wrench on 6 of the 8 exhaust clamp bolts but they were tight so I didn't drop the radiator to get to the remaining two.
The Super Long Life Coolant (blue) was still in between the high/low lines (I'll change it at 30K miles).
I used a Motion Pro manometer to sync the throttle bodies. They were somewhat off. I assumed that was the case because the idle had gotten a little uneven. I honestly didn't think syncing them would make a difference above idle, but it did. At small throttle openings, there's a little less overall vibration.
About vibration: I prefer V-twins and V-fours, but have owned a half dozen or so inline 4's. This bike is one of the smoothest inline 4's I've owned and vibrates less than my other current bikes (Africa Twin and BMW R1200RT).
I bought this bike last December 31st with 1,700 miles. I absolutely love it and can't wait to rack up more miles...which will probably be today because southern AZ offers year 'round riding!
Status update: all fitted and torqued up to correct NM and no issues! Front brakes pumped up and appear to work, will road test in the morning. Only thing I can't test in the garage is the wheel speed sensor I had to remove then refitAs I (ashamedly!) broke the front mudguard (fender for our friends across the water) due to me being an idiot and rolling the bike backwards with the disc-lock attached, so I took the front wheel off the bike today to remove it.
I'm a fraidy-cat, this is the first time I've ever touched the brakes on ANY vehicle so it was a big step for me.
New mudguard arrives Friday.... but as I have taken such a huge leap (lol) in my technical progress, since the front callipers were off I've bought some EBC HH pads as you lot highly recommend them (and I did notice the front brakes need a lot of pull to get some power out of them). Watched a couple of YouTube videos and seems easy enough, no clips etc. They've only done 900 miles so a bit of a waste I guess.
Stay tuned to see if I survive!