Alternator output on late model 919 - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 12 Old 12-11-2009, 10:52 AM Thread Starter
Tirone
 
Join Date: Dec 2008
Location: Montrose, CO
Posts: 60
Rep Power: 1
 
Alternator output on late model 919

Can anyone with a service manual for late model 919, tell me what the manual lists as it output for the alternator? Adding electrical accessories to my 02 and don't think mine's going to have enough (380 listed). I thought as a last resort I could swap out mine for later one if the output has been significantly increase. Thanks all

rabbott is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 12-11-2009, 11:29 AM
Serial Monogamist
 
ST-DocLizard1's Avatar
 
Join Date: Dec 2007
Location: Hampton, NJ
Posts: 1,507
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 21

What are you trying to add? Mine is an '03 with a Gerbings jacket liner, Streetpilot 2610, JM2003CB, XM Radio, and a Sony Minidisc. No problems in 44K and I have the original battery on a tender with an in-service date of 02/04.

Doc



"FRIENDS DON'T LET FRIENDS EARLY APEX."
ST-DocLizard1 is offline  
post #3 of 12 Old 12-11-2009, 11:55 AM Thread Starter
Tirone
 
Join Date: Dec 2008
Location: Montrose, CO
Posts: 60
Rep Power: 1
 
Quote:
Originally Posted by ST-DocLizard1 View Post
What are you trying to add? Mine is an '03 with a Gerbings jacket liner, Streetpilot 2610, JM2003CB, XM Radio, and a Sony Minidisc. No problems in 44K and I have the original battery on a tender with an in-service date of 02/04.

Doc
Hey doc, sounds like you've added pretty much what I have: 2610, Gerbings jacket, XM, but have heated grips as well. The last time I rode, my liner didn't seem to be putting out the heat that I remember when used on my Burgman 650 (550 output). My jacket and grips use 104w by themselves. Thanks for your comments.

rabbott is offline  
post #4 of 12 Old 12-11-2009, 02:35 PM Thread Starter
Tirone
 
Join Date: Dec 2008
Location: Montrose, CO
Posts: 60
Rep Power: 1
 
Your steed

Quote:
Originally Posted by ST-DocLizard1 View Post
What are you trying to add? Mine is an '03 with a Gerbings jacket liner, Streetpilot 2610, JM2003CB, XM Radio, and a Sony Minidisc. No problems in 44K and I have the original battery on a tender with an in-service date of 02/04.

Doc
Your 9er looks good, apparently much of the same things that I've done, I used the Pelican bags for sides, and a Givi top case, Pelicans sturdy and cheap(ish) but a bit heavy. I'm always looking for next ex-motorcycle, but I can't find anything better than the niner so far. Doesn't do anything outstanding (IMO), but does everything very well and not expensive.
Ron

rabbott is offline  
post #5 of 12 Old 12-12-2009, 11:00 AM
Serial Monogamist
 
ST-DocLizard1's Avatar
 
Join Date: Dec 2007
Location: Hampton, NJ
Posts: 1,507
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance Wrist Twisters Event Attendance 
Total Awards: 21

Could be that your grips are putting you over the edge especially at idle. I have used the Gerbings glove liners when necessary which is not very often. Both the jacket liner and glove liners are on a dual controller thermostat.

The last thing you want is to toast the battery and you know what goes next in line trying to keep up with the demand for more electrons.

Doc



"FRIENDS DON'T LET FRIENDS EARLY APEX."
ST-DocLizard1 is offline  
post #6 of 12 Old 12-13-2009, 08:45 AM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,638
Rep Power: 1
 
rabbott, the 919 Shop Manual has minimal info in it.
Section 10 Alternator/Starter Clutch has zero electrical info.
Section 16 Battery/Charging System has a bit.
Page 16.2 says alternator output is 0.38 kW @ 5,000 RPM. (0.38 kW = 380 watts).
Page 16-8 says the check is to run the engine [email protected] 5,000 RPM with the headlight Hi Beam on and do a voltmeter check across the battery terminals. You should be in the range of 15.5 to 16.5 volts.
There is no info to speak of in the Common Service Manual, other that letting you see that the Alternator is a Permanent Magnet Type.
Hopefully this all helps you.

mcromo44 is offline  
post #7 of 12 Old 12-13-2009, 11:17 AM
Tirone Choolaces
 
marylandmike's Avatar
 
Join Date: Aug 2007
Location: USA
Posts: 11,122
Rep Power: 1
 
Garage

Awards Showcase
Wrist Twisters Event Attendance Donation Donation 
Total Awards: 3

A little more info from MisterMike's Maintenance How-to page. May help if you are trying to decide how much available power there is for accessories.

Lighting Specifications:

0.38kW/5,000 rpm Alternator Capicity
184 total Watts with the high beam = 48.4% of the Alternator Capicity
243 total Watts with a dual 55/60W headlight system = 64.2% of the Alternator Capacity

60W Headlight-High beam
55W Headlight-Low beam
21W x 2 Brake lights
5W x 2 Tail lights
23W Front turn signal
8W x 2 Front running lights
21W Rear turn signal
5W License plate light
1.7W x3 Instrument lights
1.7W Turn signal indicator

marylandmike is offline  
post #8 of 12 Old 12-13-2009, 11:27 AM
McTavish
 
mcromo44's Avatar
 
Join Date: Oct 2007
Location: Calgary
Posts: 5,638
Rep Power: 1
 
Mister Mike has a ton of good stuff in his How-to.

mcromo44 is offline  
post #9 of 12 Old 12-18-2009, 09:57 AM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,354
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

All wattage figures assume a system voltage of 14 volts.
Alternator output listed as 380 watts @5,000 rpm. To the best of my knowledge this has not changed over the entire production run.

Constant loads:
Headlight ---- 55 watts (W).
Taillight ----- 10W (5W*2)
Front driving lights -- 16W
License ------ 5W
Instrument lights--- 5.1W (1.7W*3)
Instrument cluster -- ~10W
ECU --------- 16.8W
Fuel pump --- 20W
Ignition ------ 14W
Injectors ----- 14W Both ignition and injectors are pulsed loads, so this figure is an industry accepted figure extrapolated from # of coils / injectors times a constant.
Battery maintain / charge --- Too variable to give an accurate figure. As an average it's less than 5W for a fully charged battery at least 10 minutes into a cruise maintaining greater than 2,500 rpm. Stop and go traffic is another matter entirely.
Total -------- 166W

Intermittent loads:
Brake lights --- 42W
Turn signals ---- 36W (44W minus the 8W driving light that is off when turn signal operating)
High beam --- 5W (difference high to low beams)
Total --- 83W

Grand total of 250W worst case, leaving ~120W in reserve. This is, of course, assuming the engine is turning at least 5,000 rpm.

There you go.

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
robtharalson is offline  
post #10 of 12 Old 02-16-2013, 12:24 AM
Aquilifer
 
sytheii's Avatar
 
Join Date: Jun 2012
Location: Los Angeles
Posts: 1,199
Rep Power: 1
 
Hey quick question, rob, if you're around to anser, is the power output supposed to be 14v, or is it 13.8, or is there a variable range for voltage? assuming your regulator is working normally, what is the mean?

sytheii is offline  
post #11 of 12 Old 02-16-2013, 09:35 AM
Tirone Choolaces
 
marylandmike's Avatar
 
Join Date: Aug 2007
Location: USA
Posts: 11,122
Rep Power: 1
 
Garage

Awards Showcase
Wrist Twisters Event Attendance Donation Donation 
Total Awards: 3

From the service manual
Attached Images
File Type: png charging volts.PNG (97.2 KB, 18 views)

marylandmike is offline  
post #12 of 12 Old 02-16-2013, 01:50 PM
Aquilifer
 
sytheii's Avatar
 
Join Date: Jun 2012
Location: Los Angeles
Posts: 1,199
Rep Power: 1
 
Quote:
Originally Posted by marylandmike View Post
From the service manual
Damnit! I looked in mine but wasnt thurough enough. Thanks!

sytheii is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome