The weakest point of a Yamaha XS650 is the charging system. As your bike is now 30 to 40 years old, your stock components have had plenty of time to deteriorate from several factors including vibration, moisture, and just old age. It is just a matter of time before one or more of the components are going to fail you and leave you stranded.
The major downfall to having a stock charging system is that it uses an electromagnet to produce voltage to charge your battery. Your XS650 must have a good charged battery to run, spark, and charge. So if for any reason your battery becomes depleted (you forget to turn off your key, you have a loose connection, or the battery just goes bad) you will be stranded whether you try kickstarting your bike or not.
This all is eliminated with the permanent magnet alternator kit. Your bike does not use an electromagnet in your alternator therefore you won’t get stranded if your accidentally leave your lights on or your battery goes dead.
Another downfall to all stock XS650 charging systems is that they use carbon brushes to send voltage to your rotor, over time these brushes wear down causing your bike alternator to lose contact with the rotor and your bike will fail to charge your battery. With the permanent magnet alternator there are no wearing parts, so you will have a maintenance free charging system.
Another downfall to the early model XS650's is that you have a separate rectifier and regulator on your bike, the regulator operates on an old "points" style system. Eventually the regulators will fail because of wear in the moving parts and old age. The permanent magnet alternator comes with a new solid state combined rectifier/ regulator (no moving parts to fail) that looks much cleaner and will outperform and outlast the original Yamaha equipment.
One great advantage of this kit is that it will allow you to eliminate your battery from your system (and replace with a capacitor) for an ultra clean look.
NO CUTTING OR SPLICING OF YOUR STOCK WIRING HARNESS IS REQUIRED!
The kit comes with detailed installation instructions with photos and it is an easy 2 wire hook up (just hook the positive red wire to your battery positive and the negative green wire to your battery ground).
Fits 1970-79 XS650 with OEM points ignition (or Cam-Timed Ignition systems such as XSCHARGE or Boyer Brandsen).
It will also fit 1980-83 models running Aftermarket Cam-Timed Ignition Systems such as XSCHARGE or BOYER
WILL NOT WORK WITH FACTORY YAMAHA TCI (CDI) ELECTRONIC IGNITION.
Motogadget m.unit Cable Kit
Regular price $115.00The m.unit Cable Kit is a ready-made set of cables to aid in the assembly of a wiring harness.
This cable kit consists of top-grade copper-strand cables and will help you do quick work of creating a new wiring harness.
The different cable diameters and colors are ideally suited for application in connection with the m.unit. Their number and length are sufficient for most models.
Non-professionals would have to put serious effort into an equivalent assembly.
Additionally, the kit contains multiple cable ties and cable end sleeves. Altogether 1 kg of cables and materials.
Parts delivered
| Cable color | Diameter | Length [m] |
| brown | 2,5 mm² | 5 |
| black | 2,5 mm² | 4 |
| blue | 2,5 mm² | 2 |
| white | 1,5 mm² | 4 |
| red | 1,5 mm² | 2 |
| yellow | 1,5 mm² | 4 |
| orange | 1,5 mm² | 4 |
| green | 1,5 mm² | 2 |
| purple | 1,5 mm² | 2 |
| white | 0,5 mm² | 2 |
| blue | 0,5 mm² | 2 |
| red | 0,5 mm² | 2 |
| yellow | 0,5 mm² | 2 |
| green | 0,5 mm² | 2 |
| orange | 0,5 mm² | 2 |
| purple | 0,5 mm² | 2 |
| brown | 0,5 mm² | 2 |
Cable tie small 15
Cable tie big 15
Cable end sleeves small 10
Cable end sleeves medium 10
Cable end sleeves big 10
Manual
Motogadget mo.unit blue
Regular price $570.00| L/W/H | 90 x 53 x 30 mm, bolt distance 74 mm |
| Weight | Approx. 180 g |
| Fastener | 2 x M5 stainless steel bolts (installation and ground connection), 1 x M5 screwing contact for battery Plus |
| Operating voltage | 6 V - 20 V |
| Operating temperature | -20°... +80°C |
| Inputs | 1 x input (+12 V switched) for the ignition lock or m.lock 11 x control input (minus/switched to ground) for: Left turn signal Right turn signal Lo/Hi-beam Starter Horn Brake light Kill switch Stand switch LIN bus AUX1 AUX2 |
| Outputs | 10 x Outputs (+12V) for: Left turn signal Right turn signal Lo-beam Hi-beam Starter Horn Brake light Ignition AUX1 AUX2 |
Motogadget mo.blaze pin
Regular price $69.00| Total length with thread | 38,5 mm |
| Length without thread | 19,5 mm |
| Biggest diameter | 16 mm |
| Cable length | ca. 100 cm |
| Weight | ca. 12 g |
| Installation | M8 threaded bolt |
| Power consumption | ca. 3 Watt |
Antigravity - AG-801 Battery (8-Cell)
Regular price $289.99 Sale price $269.99At a very small 4.25″ Length x 2.25″ Depth and 3.75″ Height (to the top of the terminals) this battery offers extreme power in the most compact size in Lithium Motorsport batteries. This battery is best used for applications where extreme weight loss and ultra compact size are desired and can be used for bikes from 600cc street use and 1200cc race use.
Motogadget m.button
Regular price $155.00Another innovation from motogadget: the m.button.
It's a big help - in combination with the new m.unit blue, basic, and m.unit v.2 - in reducing 'cable clutter' and simplifying wiring harnesses.
Integrated into the handlebar tube - or any other adequate location - this tiny cylinder will electrically connect all handlebar instruments, switches, and buttons.
Using state-of-the-art bus technology, the m.button digitally processes signals and transmits them to the m.unit over a thin cable.
The electrical consumers will then be switched inside the m.unit.
All control wires are moved into the handlebar. This saves space, weight, labour, and time. A 'must have' for custom bikes with clean-look handlebars.
In simple facts:
a) normally, the operating current (e.g. headlight or turn signals) is transmitted directly via the wiring of the handlebar switches. Due to the high currents, cables with large cross-sections have to be routed from the fuse box to the switch and back to the electrical consumer.
The result: big cable bundles. Definitely, a 'no go' for custom bikes with restricted space or a concealed electrical system.
b) using the m.unit without the m.button, just a thin cable for each switch- or button-controlled feature has to be routed to the m.unit. These cables only carry minute control currents. All high loads and currents are switched directly at the m.unit and transmitted directly to the electrical consumers. This already leads to a significant reduction and simplification of the wiring harness. Here you can see the example of a circuit diagram.
c) using the m.unit blue, basic, or m.unit v.2 in combination with the tiny m.button, you will once again reduce the number of cables that have to be routed! All switches/buttons on the handlebar are connected at the shortest distance possible and concealed inside the handlebar. Consequently, you will have to route only ONE thin cable from the m.button to the m.unit. All loads and currents will be switched directly at the m.unit (see explanations above). A layout reduced to the max! Here you can see the example of a circuit diagram with the use of m.button
The m.button is completely moulded in, making it water-tight and resistant to vibrations.
The m.button is equipped with connections for
- turn signal, left side
- turn signal, right side
- headlight (low beam and high beam)
- E-starter
- horn
- brake light switch, front brake
m.button – dimensions
Diameter: 12 mm
Length: 25 mm
Cable length: approx. 60 cm
Connecting cable to m.unit: approx. 200 cm
Weight: approx. 30 g
Attention: The only intended use of the m.button is in combination with m.unit blue or m.unit v.2
