ruenjou

Easternbeaver.com cycleterminal.com www.corsa-technic.com

Did F900XR copy my idea? LOL

Yamaha's own

Mechanical efforts: 1. Pulled up cables of the R/R from their stock locations and re-route them to exit to the left side of vehicle. They were tucked under several other cables in the battery tray. 2. Fabricated a simple mount for SH847 using 1/2"x1/8" aluminum bar stock from homedepot. 3. R/R is finally mounted using some nuts/bolts/standoffs. OEM plugs are plug-n-play and the photo shows how it's mounted permanently. The above mods can be fully restored to stock.

Stock FJ09 R/R is MOSFET shunt style, Shindengen FH020AA which is also used in FJR1300, Super Tenere and many other bikes. Shindengen SH775 is a SCR series style and a drop-in replacement of FH020AA. However FH020AA is rated for 50A while SH775 is at 35A. In addition, FJ09 puts R/R in an undesirable location where there is very little air flow. I retrofit a Shindengen SH847 (SCR series 50A) into my FJ09 with some mechanical efforts. Electrically it's straightforward since SH847 has identical connector pinout as FH020/SH775.

Pretty easy to add. The most challenging part of the procedure is to connect the QS sensor to the under-tank connector due to a bit of tight space after tank is lifted.

Even with oil cooling, Triumph street triple, some Suzuki GSXers are known to fry their stator coils...

Correct. However this can be mitigated with transient suppression diodes in series R/R. We called this inductive kick in the industry.

It's more efficient to use series R/R. However it's much easier and cheaper to design shunt R/R than series R/R. Also, shunt R/R has better high frequency response which works well with high RPM engines. To my knowledge, harley v-twins and Suzuki V-strom 1000 (2014+) come with series R/R in stock. Shunt R/R has been on motorcycles for >30 years and it works because the stator coil is oil cooled. My unscientific tests showed ~20 deg reduction of stator temps (170 vs 190F) when using series R/R. Don't laugh. This is my FJ09 fitted with a series R/R. Form follows function, LOL.

The stator open circuit voltage (no load) is >60VAC at 5000 rpm. With a shunt-style regulator, you will observe stator voltage ~14VAC in low or full loads since regulator shorts out some cycles of stator output to maintain 14VDC output. With a series-style regulator, the stator output is ~14VAC at maximum load. However at low loads, some cycles of ~60VAC (~5K rpm) can be observed at stator coil output since the regular "disconnects" the stator from load to maintain DC regulation and the stator coil is open circuit at that moment. FJ09/tracer uses shunt style regulator.

I did a measurement on rectifier output in normal operation a while ago and the meter read ~10A. That means we have about 20A for all accessaries at 5000 rpm. Fewer available at lower RPM as voltage drops can been seen.

Every roads in Quincy areas are beautiful. I only wanted to add that due to construction, there was a 3-4 miles section of unpaved Buck Lake road about 10 miles north of Oroville when I was there in July 2018. You can create several loops out of 32/70/La Port/Buck Lake Roads!

Have warm-n-safe heated jacket and gloves hooked up to a dual-circuit heatroller. No problems riding all day at 40F.

Beautiful places to ride. Was there 2 months ago. Trinity Lake below.

I got level 1 fun

Bought at an Arai specialty shop in Ueno, Tokyo

Haha. 95 is the tail light connector. Yellow wire goes to the rear brake switch while brown wire goes to ignition switch. Black is ground...

Yea yellow to red and black to black

2017 white