charging

My first thread seems to have bogged down, so here goes: My '02 is very hard to start when the engine is hot. Let is sit in the parking lot for 10 minutes or more and it's fine. But try to start it at, say, a long traffic light where you would normally turn the motor off and then the starter...

While I think I know the unfortunate answer here, just wanted to see if anyone has suggestions about this.. Had the famous low running voltage on my Max for some time. Hovered around 12.8 when I got the bike. Did the crimp fix, went up to about 13.3. Then I forgot about it for about 6-7000...

I'm using the troubleshooting chart, in part D where you test the stator, it says to disconnect the stator from the RR to test the voltage and the resistance of the stator, I have soldered my leads between the stator RR. Do I need to disconnect those wires to get accurate resistance/voltage...

my bikes charging sys would drop as motor got hot especially in stop n go traffic..i checked everything and narrowed it down to the r/r..bought a new one from python for the 85 max and all was good again.ran fantastic with no issues.now after putting about 900 miles its doing it again.is it...

So now I've replaced both my R/R and battery, and I'm still having problems. :damn angry::damn angry::damn angry: Here's what I'm seeing: - voltmeter across battery on idle shows 12.07 VDC - revving the motor brings it up to a max of 12.30 VDC - not enough to charge Measuring across...

after reading just about every post on charging systems, i decided that my 88 was due for a upgrade. i was going to do all the tips available. first thing i did was go on ebay and get a r1 reg. while i was waiting on the reg. i wanted to take a 2 day trip. i knew when i reved mine i would loose...

I've had my max on a Battery Tender trickle charger all winter, finally warmed up enough to get it out over the weekend. When I went out to start it, the trickle charger light was green, and it started just fine. Took the bike for a short ride, maybe 5 miles or so, when I got back and plugged...

I was going to ask if anyone here ever super/turbo charged their bike, decided to do a web search first, found this website, thought I'd share it... http://www.zvmax.com/vmax.htm some pretty cool pictures there!!

Please! I've been having low voltage issues, and I've followed the Electrosport flow chart. I replaced my R/R with one of their late model finned Max units, wired straight to the battery. It lasted about 10 minutes. was charging almost 14v. now it's only putting out about 4v HELP!

I bought a pair of inexpensive driving lights, 55 watts each, and wonder if the charging system will carry the extra load. I plan to wire them direct from the battery, (Odyssey PC680) with their own switch and fuse. Anybody know the charging output for an '85 Max? The owners manual doesn't give...

Well here we are again with a bit of a teaser question. I've got charging issues and after replacing battery and RR, voltage is up to 14.2v @ 1000 rpm, problem is the higher the rev's get the lower the supply voltage is to charge the battery. the yamaha service manual says the stator winding...

I am having some sort of charging problems. Had stator and rectifier replaced by mechanic now charges at 13.6 at idle but when I rev it up to 5,000 rpm and check it with voltmeter it drops to 12 or below. When I take it for short rides it runs ok at first but it then runs worse and worse while...

I removed my battery today to see if it was weak, since I've been having problems hot starting at times. On the bench, it tested at 10.2V (aargh). I think that says a lot for the COPs - it still starts no problem! It's an Interstate battery, and it used to be a little on the dry side when I...

Ok little history. This is my first bike a 1986 vmax. I have been running the bike for the past 2 weeks with no issues at all other than getting used to the freaky amount of power it has. Ok on to the problem. I noticed over the weekend it was having problems starting. To me sounded like a...

Charging voltage wasn't too much over 13 volts. I'm going through the fault finding diagram. When measureing voltage with (-) lead on positive battery post and (+) lead on red output wire of r/r I was getting about .35 volts. Diagram said it should be lower than .2 volts. What exactly does...

Is a bike charging 13.5 v at 2k rpm and no drain when bike is off a good test that the regulator is OK? I read the manual and it stated there was no good way to test it but I just think that's absurd.

The pdf from the electrosport site is attached to this post.

Charging problems. Battery fully charged (12.8V) before riding. Ride for about an hour come back and stop engine. Try to start and barely turns over. Voltage is at 11.75. Checked Stator before riding and was fine, Checked R/R before riding..diode test fine... Output about 13.9V when reving...

First post here. Just got my first Max last week. It is a 86. Ive wanted one of these since 85 when they first came out, and finally got one. Bike runs fine and starts every time, but... lights dim when motor is revved so I checked the voltage at the battery. When it is idling it will be...

Lately I am noticing a symptom like a weak battery, the bike starts from the first crank but sounds weak, I measured the voltage with ignition off and it is 12 volts, did not try with ignition on yet. Battery is Odyssey 680 only one year old :(. what diagnostic tests should I do? to check if it...