bump start - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 17 Old 08-02-2008, 07:49 AM Thread Starter
Cornicen
 
drivit's Avatar
 
Join Date: Apr 2006
Location: toronto
Posts: 530
Rep Power: 1
 
bump start

i let the fan run too long, ran the battery down, haven't tried a bump start in 20 years.
i figured no way but gave it a shot anyway.
it started, maybe no biggy but i was impressed with the bike,
i love this thing.

drivit is offline  
Sponsored Links
Advertisement
 
post #2 of 17 Old 08-02-2008, 08:44 AM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,342
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Yup. As long as the battery has enough oomph to bring up the ECU and prime the fuel rail it should fire right up. One thing I've found helps is to put it in gear and roll it backwards until you feel it come up to compression, then pull in the clutch and give it a good run. In this way the crankshaft has a little more time to rotate before it hits a compression stroke and you have some more momentum built up.

I became an expert on bump starting a 500 single when the kick start gear stripped on my Gold Star, and it couldn't be done without backing up to compression first. Of course with a single the crank makes almost two full revolutions before hitting compression, so has plenty of inertia.

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 #3 of 17 Old 08-02-2008, 11:20 AM
My friends call me Bill
 
REDROKR's Avatar
 
Join Date: May 2008
Location: Harrison, Arkansas
Posts: 1,893
Blog Entries: 2
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

hope i never have to do it





REDROKR is offline  
post #4 of 17 Old 08-02-2008, 12:07 PM
Discen
 
Join Date: Jul 2007
Location: Charleston, WV
Posts: 208
Rep Power: 1
 
just curious? how did you let the fan run to long? wasn't the bike running? or was it that you shut the bike off and figured it needed to cool down?

barmatt80 is offline  
post #5 of 17 Old 08-04-2008, 11:41 AM
My friends call me Bill
 
REDROKR's Avatar
 
Join Date: May 2008
Location: Harrison, Arkansas
Posts: 1,893
Blog Entries: 2
Rep Power: 1
 

Awards Showcase
Donation 
Total Awards: 1

my thoughts too Barmatt





REDROKR is offline  
post #6 of 17 Old 08-04-2008, 12:37 PM
orange
 
sbeau1960's Avatar
 
Join Date: Jun 2007
Location: Indianapolis, IN
Posts: 9,193
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance Wrist Twisters Event Attendance Donation Community Service 
Total Awards: 6

Had to bump start Gin's 599 a few times before I replaced the battery, just stick it in 2nd and give it a good run then pop the clutch, fires right up.

sbeau1960 is offline  
post #7 of 17 Old 08-04-2008, 12:55 PM
Das Kalmar
 
gert260's Avatar
 
Join Date: May 2007
Location: Indianapolis, IN
Posts: 1,172
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance 
Total Awards: 1

my first bike was a cb 450 that I had to bump start every time.

BOOM CHICKA
gert260 is offline  
post #8 of 17 Old 08-04-2008, 05:37 PM
(Quintus) Pilus Prior
 
zookmor's Avatar
 
Join Date: Apr 2008
Location: Columbus, Ga.
Posts: 2,760
Rep Power: 1
 
Quote:
REDROKR hope i never have to do it
+1

zookmor is offline  
post #9 of 17 Old 08-04-2008, 09:14 PM
Franklin McGillacutty
 
riquefied919's Avatar
 
Join Date: Mar 2008
Location: Aurora IL
Posts: 1,181
Rep Power: 1
 
Its bad for the brushes in the alt to charge a dead battery using a charger or replacing the batt is the solution. Providing the replacment batt is fully charged

riquefied919 is offline  
post #10 of 17 Old 08-05-2008, 02:23 PM
The 919 project continues
 
mdtoney's Avatar
 
Join Date: Sep 2006
Location: Seattle, WA
Posts: 2,427
Rep Power: 1
 

Awards Showcase
Donation Veteran 
Total Awards: 2

These bikes start surprisingly easy. I had just got my leg out of a cast and could kinda walk but not run. The battery died so I got a few hobbles across the parking lot and popped it in 2nd, fired right up. Had to do it again the next day on the way to work (and leaving work) so I got a new battery on the way home!

mdtoney is offline  
post #11 of 17 Old 08-05-2008, 04:46 PM Thread Starter
Cornicen
 
drivit's Avatar
 
Join Date: Apr 2006
Location: toronto
Posts: 530
Rep Power: 1
 
if the engine gets really hot, the fan continues running on mine for a short while, after i turn it off-i think?

drivit is offline  
post #12 of 17 Old 08-05-2008, 04:48 PM
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

Quote:
Originally Posted by drivit View Post
if the engine gets really hot, the fan continues running on mine for a short while, after i turn it off-i think?
My fan keeps running if I use the kill switch, but with the key off it shuts everything down

marylandmike is offline  
post #13 of 17 Old 08-05-2008, 05:01 PM
I killed Barton664
 
Basspiece919's Avatar
 
Join Date: Jun 2008
Location: Home is Warrenton VA, School is JMU.
Posts: 1,653
Blog Entries: 1
Rep Power: 1
 

Awards Showcase
Wrist Twisters Event Attendance 
Total Awards: 1

Quote:
Originally Posted by marylandmike View Post
My fan keeps running if I use the kill switch, but with the key off it shuts everything down
Thats how mine is.

Basspiece919 is offline  
post #14 of 17 Old 08-05-2008, 05:14 PM
 
Join Date: Oct 2007
Posts: 36
Rep Power: 0
 
Quote:
Originally Posted by marylandmike View Post
My fan keeps running if I use the kill switch, but with the key off it shuts everything down
I just use the key, can't remember the last time i used the kill switch.

hutcho is offline  
post #15 of 17 Old 08-07-2008, 06:07 PM
Optio
 
Join Date: Jan 2006
Location: Lousiville
Posts: 903
Rep Power: 1
 

Awards Showcase
Veteran Donation 
Total Awards: 2

Quote:
Originally Posted by marylandmike View Post
My fan keeps running if I use the kill switch, but with the key off it shuts everything down
Quote:
Originally Posted by hutcho View Post
I just use the key, can't remember the last time i used the kill switch.
I never use the Killswitch,Kinda thought it was safty overkill.

When would it even make sense to use the thing?

tvetree is offline  
post #16 of 17 Old 08-07-2008, 07:50 PM
Discen
 
Join Date: Jul 2007
Location: Charleston, WV
Posts: 208
Rep Power: 1
 
honda recommends leaving the kill switch on and using the key.

I use the kill switch when i have the clutch held in and getting ready park after a ride or such, where the thumb is just an easier way to shut the bike off.

barmatt80 is offline  
post #17 of 17 Old 08-08-2008, 04:06 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

Quote:
Originally Posted by tvetree View Post
I never use the Killswitch,Kinda thought it was safty overkill.

When would it even make sense to use the thing?
I think maybe they taught that in the MSF...to use the kill switch. I have been just using the key more, just a matter of breaking the habit.

marylandmike 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