i've been a member for a little bit and other than fuel injection and not having a petcock what are the main differences between an F4 and f4I for some reason i think i have an F4, with f4i engine and fairings lol due to on the sticker on the frame it says 600f4 then on the under the seat it says f42 and i have pictures of cut hoses and some after market breather i think... i dont know why would anyone do that? i also have a PC3 but when its connected the bike doesnt start the PC3 says Lean,and i dont have a cable to download a map

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the k and n air filter which i have is ha-6099 which is for the f4 and the ha-6001 is for the f4i same year

 

i see a digital speedo in ur pic, i think the f4 had an analog speedo and tach

 

on the pc3, does it have 3 choices, lean/no change/rich? where you can select it from the outside of the box?

if so, just change it to the middle selection and then try to crank it

if that doesn't work, then someone probably loaded the wrong map on it or took it off another bike without changing the map before installing on your bike
so it'd just need a new download

 

Call the Honda dealer with the VIN that's stamped on the frame...?

 

Hope this helps. Here's some info I grabbed from other sites:
F4i

• Introduced in the US market in 2001, and was an update to the carbureted F4 machine, part of the 600F legacy. The first F machine was the Hurricane and has been radically updated since (F1 Hurricane, F2, F3, and F4/i).

• The F4i has a comparably more relaxed feel. The clip-ons sit above the clamp for a more upright riding position, akin to a sport-touring machine. Same as the F4 machine. The rear sets are adjustable but not as aggressively mounted as the 600RRs.

• The 2001 debuted with a 371 lbs. dry weight, one of the lightest machines Honda has made. Colors offerings, 2001 – white/red, silver/black, red/black; 2002 – yellow/black, silver/red, red/black; 2003 – silver/red, silver/black.

• The first generation (2001 through 2003) F4i was a split seat. The pillion seat was a separate seat than the rider’s seat. This was different than the F4 machine that came to pass. The second iteration (2004 through 2006) featured the return of the “banana seat”, the pillion and rider seat are the same assembly. Colors changed too, 2004 – black/red, black/yellow; 2005 – maroon/grey, silver/grey; 2006 – blue/black, yellow/grey).

• The 2001 through 2003 machines are very much the same. There was some changes made to brakes and ECU, but they’re relatively minor. Most of the changes were the different colors available; this is similar to the 2004 through 2006 machines, where similarities are plentiful and the only real differences are choices in tank/fairing colors.

• Seat height for the 2001 through 2003 machine is 31.7 inches (may also find 31.9” measurements). Chain (525 size), bore x stroke (67mm x 42.5 mm), and displacement (599cc) have not changed.

• There are some minor changes in the brake systems, but in large part, the debut bike featured front brakes sized with 296mm disks coupled with four piston calipers. Rear brake was a single 220mm disk on the 2001 model year. Brakes are pretty decent, but performance is slightly less than the 600RR.

• The F4i is fitted with 120/70 front and 180/55 rear tires.

• Peak ponies for the 2001 machine are found at 12,500 RPMs, boasting around 94 HP, and torque crests at 47.9 ft-lbs. at 10,500 RPMs. There was some rumor that the 2003 had the most power, but this could not be confirmed. The 2004/06 iterations probably have similar power and torque figures.

• The driven sprocket changed in 2006, dropping a tooth from 46 (2001 through 2005) to 45 teeth. Drive sprockets had 16 notches.

• Top speed of the 2001 machine is around 155 MPH (actual, not indicated).

• Exhaust is a conventional, right-hand mounted pipe and muffler, opposes chain-side of swingarm. Ground clearance is slightly less than the 600RR, but for street use, probably not an issue.

• Has slightly more storage under seat than its 600RR ilk. Can easily fit an aftermarket fuel management system, alarm system, etc.

• Mirrors are acceptable, but don’t inspire any confidence. In my opinion, they offer a slightly better view of that tailgating SUV than its 600RR brethren.

• The front fairing offers more wind and precipitation protection than the 600RR. Because you’re sitting “in” on the F4i, you have a marginally better defense against bugs, wind and rain.

• Power delivery is pretty smooth and very predictable; the machine redlines a tad over 14,000 RPMs. Slight power drop after idle, perhaps around 4K RPMs.

• Quarter mile trap speeds (~120-130 mph) and times (low 11s) are similar to the “superior” 600RR.

• Same instrumentation cluster through the entire generation. No digital fuel gauge; however, there is a reserve indicator with bars. 4.8 gallon capacity tanks with 0.9 gallon integrated reserve (no manual petcock switching required)

 

thats awesome all the info i've recieved right now im about to change the plugs they are a little oil fouled... i think thats because i idled it for about a hour to burn away all the gas and yes im aware idleing is bad... there is a little hose connection that has no home..

 

Your hose with no home is quite possibly a vent hose if its coming from the tank, you didnt really specify where the little orphan was.

 

Pretty much everything on my bike that labels it says F4. It's typical.

 

here is a picture of the orphan hose

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