Testors 1/6 Harley-Davidson Road King Classic

I haven't built the kit, but it sounds almost as if the piece you're puzzled by is attached to the brake caliper?

Dan A: I think you are correct. I believe the other end of Part D attaches to the Rear Brake Caliper.  The part it is attached to is the only part in the rear wheel assy that looks like it has to do with the brakes.  It's just where it attaches to the engine that is the mystery.

Agentg: I am out of town till next week, but when I get home I will try to take a picture of the engine area and the Instruction sheet. Then all I will need is to go thru the forum picture instructions to learn how to put them in a Post!  LOL, always a learning experience! Hopefully, by then, some nice soul who has already dealt with this will read this and reply.

Sorry, I didn't know if it was hydraulic or not.  I like the look of the Harleys but I know very little about them.  This is the first one I have tried to build.  None of the parts in the instruction book are identified by name, only number.  I'll probably need to check the Harley website for pictures to compare with the pictures in the instructions.  I just read the review for this model on the Scale Auto Website and that was the reviewer's main complaint that the instructions are so vacant of information.  There are three parts mounted on top of a rectangular box, which is mounted directly behind the crankshaft (I think).  One part is a round cylinder on its side at the very back of the rectangular box.  Could this be a hydraulic tank?  It is chromed on this model.  Near the front of the rectangular box is another rectangular box (also chrome) with a dome top (similar to the Metrodome).  In between is a fittings type part (black plastic) that has two mounting holes for the Part C1 & C2 hoses.  The two chrome parts do not have any holes at all.  The rear engine cylinder overhangs this area.  So I don't know if one of these parts is the brake cylinder.  The two C parts go from the fittings part to holes in the frame near the rear wheel.  I guess I'll have to look at those Harley pictures and drill my own hole.  Wouldn't be the first time I've had to drill a hole because the part didn't have one where it was supposed to be!

OK, sounds like we're getting closer.  The chrome cylinder on top of the rear of the transmission is obviously the Starter, and the Ignition Coil must be the part I thought looks like a fitting.  It has the two Part C lines connected to it.  The other chrome part is roughly square and is in front of the other two parts on top of the front of the transmission, and directly under the finned part of the rear engine cylinder.  It has what looks to be a filler hole on the left side top of it. Just a molded on plug, all chromed, but no holes to attach any lines.  A couple steps later there is a part attached to the right side of the transmission.  it is an oval shaped box, directly below the chrome box on top of the tranny.  It has one line attached that then goes to the left handlebar grip.  I am thinking this part might be the clutch?  The only other separate part that mounts in this area looks like it might be a filler cap for the tranny mounted on the top right rear corner of the tranny.  I think Testors simplified a lot of things and may have left out a few details, like the rear brake M/C.  There is a spring loaded pedal on the bottom right front of the frame.  Would this be the brake pedal?  There is a part mounted on the frame right beside this pedal that has two lines leading from it up to the right handlebar grip.  Could this be the M/C for the front brake?  I think Testors left off an arrow from the instructions because all the other lines have an arrow showing where they attach.  I sent them an email but they haven't replied yet.

Thanks for all your info. I am going down to the local dealer this week after I get home and see what all this stuff is supposed to look like.

FYI for future reference and anyone else wanting to build this model.  I just went to our local Harley Dealer and looked at a Road King Classic.  The place where the instructions show this hose attached is actually the top cover of the Transmission.  Since the other end on this hose is connected to the Rear Brake Caliper, the front end of this hose would not be attached to the Transmission.  It should probably go along, or thru, the frame to the Rear Brake M/C (Step 17, Part 52), which is mounted next to the Rear Brake Pedal on the frame just above the bottom curve of the frame.  The real bike has two hoses connected to the Rear M/C, just like the Instructions say, so the line to the Rear Caliper may be in the frame, or one line goes to the Caliper and the other to the Right Handlebar where the Front Brake M/C and Brake Fluid Reservoir (Step 28, Part 84A) are mounted.  The Instructions have both lines from the Rear M/C going to the Right Handlebar.  The Instructions show three lines connecting to the Right Handlebar, but the real bike has three lines plus a wire bundle connecting to it.  So I will make my own modifications and live with it!

I'm begining on this same project kit but I am converting it to a traffic Police Road-King. A lot of scratchbuilt fabrication and modification is going into it. I'll post pics when I cross that bridge. This kit looks real good as is but there are a lot of toyish looking molded parts and chrome were there shoud'nt be. 

I'm at the planning stages now. It's going to be a trophy for the traffic unit I belong to. Road Hogs would love the simplicity of build for this kit. I know I do....and I know nothing about motorcycles too.

I am looking forward to seeing your pics.  When I retired from our City's Fleet Service a couple years ago we had just received our first 15 Harley's for our traffic units.  We had Kawasaki 1000's until they decided to quit making them.  Never saw a model of the Kawas though.  Good luck on your conversion!