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post #1 of 24 Old 01-08-2013, 04:04 PM Thread Starter
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Can you push start it?

I have searched but nothing came out. Can you PUSH START the bike? Or any other method if the bikes battery is dead?
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post #2 of 24 Old 01-08-2013, 04:45 PM
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Yes
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post #3 of 24 Old 01-08-2013, 04:54 PM
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depends what you mean by 'dead',, but generally, if battery has lost charge
to the extent that it wont turn the starter motor, such as key in overnight etc,
then you can clutch start it, as i found after such events..

thing is, esp if you are not familar with clutch starting, best to start on a slope
the longer the better.. it might start first try on the flat after a good run up,
but its always best to start on a slope and as long as possible, to give you
the opportunity for repeated attempts..

i started mine same as other bikes, ie, ignition on, in second gear, clutch in,
take a good grip of bars, lean body forward so that weight goes into bars
elbows bent [for push, bringing body weight forward and down and control]
knees flexed, ankles flexed [as if about to run, which is about to happen]
then release the hand brake, help her get going with a good strong push
with arms, back, legs continuing the action into a pushing run alongside..

when shes going at your reduced running speed holding on,
jump on, either leg over as usual or bum on seat both legs down
same side you ran on,, timing if you can the dropping of your weight
onto the bike with dropping the clutch [letting it right out one movement]
or, if youre not confident in doing that typical technique, you can sit on
the seat and paddle both legs, if, on a good incline or hill etc..

otherwise best to have someone push you from behind both hands
as you sit on her ready to drop the clutch when the pusher
runs out of speed..

after she starts, pull the clutch in and gently increase revs to high
for a few moments then keep revs up fairly high as you bring her
to a stop again.. stay there holding revs constant for a while,
then when ready, take off easily still using higher revs than
you would normally..

keep riding..
if youre not going anywhere special at that time, keep riding
somewhere for 5 or 10 minutes, even around the block,
then - find a nice, long, slope or hill to stop and park on -
wherever youre going then or next, try to park on a hill
then walk to wherever it is youre going..

next time and the next few times you should not try
to start using the starter motor, rather repeat
clutch starting, including a 10+ minute ride
[30 mins if you have time] to re-charge the battery..

probably need to recharge it with a motorcycle charger
or battery tender, and keep in mind that you might
need to look for another battery soon, depending..

if you dont know why it went flat
take her to the doctor for a checkup..
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post #4 of 24 Old 01-08-2013, 06:59 PM
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Not if battery is severely discharged

I know from experience with my SH150i scooter, that if there is not sufficient voltage to energize the fuel injection system, then your bike will not start even with a push.

That is, if you turn your key on, and the dash does not respond with temp warning lights, etc., then you will not be able to jump start it, like you can with carbureted cycles.
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post #5 of 24 Old 01-08-2013, 07:09 PM
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if you left your key on for hours or overnight and when you come back and the dash is completely off and there is no signs of life, you can still bump start it

although it takes a while to get the bike to stay alive and all the dash functions to come back to life, you have to rev the bike a fair bit and go for a longish ride to recharge the battery

chuck her in neutral, push her up to 10+kph, bump it up to 2nd gear and let the clutch out and she should start, then pull the clutch in to stop her from stalling and then you just have to rev the crap out of it to keep it alive and ride it until the dash comes back on and the bike runs properly without dying

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post #6 of 24 Old 01-08-2013, 07:11 PM
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Quote:
Originally Posted by miprofessor View Post
That is, if you turn your key on, and the dash does not respond with temp warning lights, etc., then you will not be able to jump start it, like you can with carbureted cycles.
False statement.

Each scooter/motorcycle is different. I left my key in for several hours, came back outside and the dash wan't on. I turned the key off and then back on and still no signs of any lights or dash or any fuel injection system buzzing like it does at the start, bump started and she came back to life!

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2011 GSX-R600 Black
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post #7 of 24 Old 01-08-2013, 08:59 PM
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My CBR250R battery went dead because I left my GPS plugged in (I added a power socket wired directly to the battery through a fuse. The socket / outlet fits nicely inside the fairing) for 3 or 4 weeks. The GPS was off but apparently still uses energy. I now unplug it when not in use for awhile. So I jump started with cables from another battery and it started fine but would die immediately if I disconnected the jumping battery. The engine was at idle when that happened. My battery was so dead that nothing came on when the key was turned and there was no sound from the fuel pump.
Amazon will sell you a new battery for $24 shipped, so keeping a spare for such occasions is quite feasible.
Seems to me that bump or clutch starting and then keeping a high rev to sustain the engine puts a lot of wear and strain on everything. Switching to a spare and fully charged battery takes only a couple of minutes and avoids all that. I like to run at idle for the first few minutes.
Cheers, Rick
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post #8 of 24 Old 01-08-2013, 09:18 PM
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rick - thats obviously a good idea, having a spare battery ready to go,
but this could happen when youre not at home, or where that battery is
[you stay overnight somewhere, leave the key in overnight, say]
unless you carry the fresh spare battery around with you..

clutch starting requires revs well within typical rev range and
well below red zone.. its only the initial start you keep revs up
[below red zone] and then only for a short time until she will
sustain lower revs.. you dont need to sit there revving it
to the redzone.. keeping revs up is to prevent it stalling..

first time this happened to me i was away from home..
early morning, nothing open, no mobile phone, nothing..
but having clutch started motorcycles before this was
a natural response for me.. and it worked, first time..

this is handy information to have, even tho having
a fresh battery available at all times would be best..
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post #9 of 24 Old 01-09-2013, 12:26 PM
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Push-started mine back in the fall without any issue. The odd thing was that after sitting the bike started fine (with the starter/button), then died a few seconds later. Even with a full charge it would try to start and fail...but push-starting it caused it to fire up immediately. Never had another issue again *knocks on wood*.

Also for people who say you can only do it by jumping on and riding down a hill -- I push-started mine (2nd gear) running alongside it in my condo's parking structure. As I had never done it before (although I have with cars) I gave myself a good 200+ ft of 'runway', and ended up starting it within about 10-15ft of my starting point lol.

I am the Stig's father's brother's cousin's nephew's former roommate.

Bike: 2014 Honda CBR650F (Silver)
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Last edited by Conundrum; 01-09-2013 at 01:08 PM.
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post #10 of 24 Old 01-09-2013, 02:43 PM Thread Starter
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Quote:
Originally Posted by shisoshin View Post
depends what you mean by 'dead',, but generally, if battery has lost charge
to the extent that it wont turn the starter motor, such as key in overnight etc,
then you can clutch start it, as i found after such events..

thing is, esp if you are not familar with clutch starting, best to start on a slope
the longer the better.. it might start first try on the flat after a good run up,
but its always best to start on a slope and as long as possible, to give you
the opportunity for repeated attempts..

i started mine same as other bikes, ie, ignition on, in second gear, clutch in,
take a good grip of bars, lean body forward so that weight goes into bars
elbows bent [for push, bringing body weight forward and down and control]
knees flexed, ankles flexed [as if about to run, which is about to happen]
then release the hand brake, help her get going with a good strong push
with arms, back, legs continuing the action into a pushing run alongside..

when shes going at your reduced running speed holding on,
jump on, either leg over as usual or bum on seat both legs down
same side you ran on,, timing if you can the dropping of your weight
onto the bike with dropping the clutch [letting it right out one movement]
or, if youre not confident in doing that typical technique, you can sit on
the seat and paddle both legs, if, on a good incline or hill etc..

otherwise best to have someone push you from behind both hands
as you sit on her ready to drop the clutch when the pusher
runs out of speed..

after she starts, pull the clutch in and gently increase revs to high
for a few moments then keep revs up fairly high as you bring her
to a stop again.. stay there holding revs constant for a while,
then when ready, take off easily still using higher revs than
you would normally..

keep riding..
if youre not going anywhere special at that time, keep riding
somewhere for 5 or 10 minutes, even around the block,
then - find a nice, long, slope or hill to stop and park on -
wherever youre going then or next, try to park on a hill
then walk to wherever it is youre going..

next time and the next few times you should not try
to start using the starter motor, rather repeat
clutch starting, including a 10+ minute ride
[30 mins if you have time] to re-charge the battery..

probably need to recharge it with a motorcycle charger
or battery tender, and keep in mind that you might
need to look for another battery soon, depending..

if you dont know why it went flat
take her to the doctor for a checkup..

can you be more dead then dead?
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