You can test the spring before disassembly with anything ~8 inches long and skinny (like a bicycle spoke). Push on the ball through the hole. If it sp...

On both bikes... remove the oil filter and look deep down into the oil filter "well" at the bottom. There you will see a screw head at the 3 o'clock p...

Sincere apologies, my friend. There was something I couldn't remember until I started looking at my old photos. Remove the engine front cover, as i...

Cutting out above 4000 sounds like a carb/ intake issue to me because that's right where the main jet kicks in. It's also where the ignition breaks do...

Congrats !

Number of LEDs is not important. Do you count the filament coils on your halogen bulbs ?   Well, I guess you'll need to expand your searc...

My bad. I should have said "multi-sided" post. A square post with 4-sides may be just as good or better as 3-sides. The whole idea is to get full refl...

@ 1. LED headlamp bulbs are too numerous and forever changing to give an exact part number. What you are looking for is an "H4 LED" of about 2500 lume...

Relocation of the fuses was something done in the 1970's because you had to. The pointy end German fuses are totally unreliable as far as making a sol...

@ I also see issues with direct-battery-connected accessories. 1. First of all... everything that's at the battery (in a messy form) is also inside...

@ The stock rectangular holes (as shown in your photo) was intended for the Bosch (brand) rocker switch. There are 2 switch positions available, one f...

If an owner wants to run a wide rear tire, especially a metric sized rear tire, then the tire has to be spaced off the drive shaft housing. This is do...

Any /7 Airhead would be a mid-1970's model which came under later DOT rulings. Specifically, the "headlamp ON 24/7" ruling. Your schematic may be more...

1. First of all, the splines need to be well covered with some type of waterproof grease. This needs to be checked and possibly applied every time the...

The Airhead Police will be around shortly to impound all your electrical test equipment.