only start when jumped

[Steve]

It's not the amp difference, it's the voltage.

The running car will be putting out voltage that is high enough that your bike thinks it needs to be regulated, so it tries. Usually fails miserably, because the car is just so much more capable at generating electricity, far beyond what your bike ever dreamed of.

When the car is not running, it's just another, LARGER 12-volt battery that won't run down as quickly.

.

[recycled64]

Still standing

I stand corrected, and, as usual, well-informed by some of the most knowledgeable bike guys on the planet!

[Steve]

I stand corrected, and, as usual, well-informed by some of the most knowledgeable bike guys on the planet!

Shucks, tweren't nuthin.

My philosophy is to learn something new every day. After that, I can go home.

I must not be learning anything, I haven't seen my house for over two months.

.

[suzu650]

:threadhijacked:

There will be plenty of pictures taken and uploaded. I've never made a bobber before, so I am sure I will have plenty of questions for.

Did not know that about jumping from car to bike battery. So what are the possible negative outcomes if the car is running when jumping the bike?

I have one picture of the bike on my phone, but for some reason my phone is being a pain and wont let me upload it to the computer. ..I sold my 3wheeler today ($300 & only paid $50 for it) which will be paying for my bike when I pick it up Sunday. I will get pictures then, but no progress pictures until next weekend when I start spring break.

[suzu650]

Random pics.

new 650


3wheeler I sold today


my maxim 550 ($50. New plugs, clutch, break work, carbs cleaned, and died seat)


little aspire dirt racer I made



dads rebuilt cushman


old moped



..feel free to search my photbucket album too, lots of good stuff on there

[gggGary]

Not that it matters but my vote is bob the maxim and restore the GS!

[Octain]

<<<So what are the possible negative outcomes if the car is running when jumping the bike>>>

I'd like to know the answer to this one as well.

[Steve]

Did not know that about jumping from car to bike battery. So what are the possible negative outcomes if the car is running when jumping the bike?

I'd like to know the answer to this one as well.

Y'all haven't been reading, have you?

Your questions are posts #19 and #22 in this thread.

Go back and read #16.

Wait, I'll make it easy for you.

It's not the amp difference, it's the voltage.

The running car will be putting out voltage that is high enough that your bike thinks it needs to be regulated, so it tries. Usually fails miserably, because the car is just so much more capable at generating electricity, far beyond what your bike ever dreamed of.

When the car is not running, it's just another, LARGER 12-volt battery that won't run down as quickly.

.

OK, so I didn't give any details, but they were not needed at the time. The r/r is designed to handle a certain amount of current while it does its job. The car can generate a LOT MORE current, the r/r just can't handle it and dies. I'm sure some of our electrical engineers can give you more details on just how they die, but the result is the same: you need a new r/r.

.

[suzu650]

what's an r/r?

[Steve]

The r/r is the Rectifier/Regulator.

There are very few pieces in our basic charging systems. The current is generated by permanent magnets that are imbedded in the flywheel and pass over a series of windings around an iron core. These windings are called the "stator", they live under the cover on the left side of your engine. The current that is genereated is "Alternating Current" and has a voltage that increases with engine speed. The r/r is a combination device that will rectify the AC to DC (Direct Current) that still has a relatively high voltage, then will regulate it down to the 14 volts that will run the bike and charge the battery. The r/r has three input wires from the stator and two output wires that disappear to various parts of the wiring harness, but end up at the two terminals of the battery. To assure good connections, many of us re-route the r/r output wires directly to the battery, eliminating all the potential problems of dirty connections in the original harness.

.

[suzu650]

To assure good connections, many of us re-route the r/r output wires directly to the battery, eliminating all the potential problems of dirty connections in the original harness.

.

Is there a write up for this or is it very simple to do?

also, I have been roaming around the site looking for bike and decided i want to do something like this



if I'm not mistaken, are the rear shocks on these bikes shorter? If so, how? are they different shocks or rebuilt somehow? Also, what bars are on the first bike? broomstick? about how long do you guys think?

[Octain]

Y'all haven't been reading, have you?

Your questions are posts #19 and #22 in this thread.

Go back and read #16.

Wait, I'll make it easy for you..

I knew you were gonna say that..

Yeah I been reading(grouchy old man) but my point is I jump em all the time with the vehicle running with no problems at all.

Have you ever seen point #19 and #22 first hand or is it just something you read about?

[Steve]

Have you ever seen point #19 and #22 first hand or is it just something you read about?

Personal experience here. Had to jump my wife's bike while we were in Durango, Colorado several years ago. Used my Kawasaki Voyager as the donor. Didn't seem likely, as one bike's regulator should easily handle the output of another bike, but it definitely fried the r/r.

That was a very expensive r/r, too. Had to rent a U-Haul truck to get home, about $1200.

.

[gggGary]

also, I have been roaming around the site looking for bike and decided i want to do something like this



if I'm not mistaken, are the rear shocks on these bikes shorter? If so, how? are they different shocks or rebuilt somehow? Also, what bars are on the first bike? broomstick? about how long do you guys think?[/QUOTE]
Good plan both those are nice looking machines. Even a LITTLE rear suspension is better than a hard tail. Nothing wrong with repurposing a shafty. Gotta have dual chrome gauges with no "dashboard"

[suzu650]

picked it up today. starts fine, looks like it needs a little carb work though. hopefully just a cleaning