221NM
Standard Bore
- Joined
- Apr 4, 2022
- Messages
- 3
- Ride
- Rocket 3R
OK! Job, done, about 3 hours for me. First off, great video, I had to check it a few times during the project. Here’s a few pointers for anyone about to tackle this job:
1) As noted, just flip up the TFT, then remove the two tank bolts, and lift the tank, preferably as high as you can get it, then prop up with some foam or something that won’t scratch the tank.
2) Once you have disassembled and have access to the filter housing, per the video, the hardest part IMHO is a) getting the filter assembly out, then, b) (much harder until I figured it out!!) is getting the new filter / assembly back in. The assembly has 4 clips along the back that fit to the frame runner that holds the assembly tight to the air box. To remove, you have to sort of push back a bit, while pulling down, so as to free the clips from the frame. Once that’s accomplished, you kind of just wiggle it out, reason being is that you have the 3 rubber intake necks that tend to get hung up as you are removing, or at least that was my experience.
3) So for the re-assembly….this is where my garage was filled every foul word known and a few new ones……first, I simply put the new filter in the housing and tried for re-install. This turned out to be a really bad idea, first because I nearly wrecked the new filter on the mounting bolts, and second because I could not find the right technique to get the back clips attached. Maybe obvious but very important…don’t be fooled into thinking you have it and just re-install the mounting nuts and call it good. If those clips at the back don’t seat, then you have no seal to the airbox and thus basically no filter.
What I then did was just set the filter aside, and try the housing by itself, just to get a feel for what’s hanging up and how it should go in. There is an electrical connection near the front of the tank which may have been part of my problem, pushing this and the hoses aside helped, and it went right in. Then I thought, OK, how about I check the fit of the filter to the airbox, by itself, just to be sure that wasn’t the problem….it wasn’t, the new filter fits just fine. And then, AH HA! You guessed it….filter first, hold it in place (a little tricky), then the housing, back side clips slid right into place, then just line up the housing front to the mounting bolts, all down hill from there!
4) One other tip…when re-assembling the intake runners to the throttle body housing, beware of cross-threading the mounting bolts. The TB housing is aluminum and its really easy to cross thread. Note that there are 4 cap screws, then on the two ends, bolts which hold the cover in place. All 6 hold the intake tight on the TB housing gasket. A suggestion is to make sure you can correctly thread all 6, then tighten the inner 4, remove the outer 2, install the cover, then install the outer 2.
Filter done, pipes done, now for the tune
