Bump starting...

[firefighter]

Have to put this here as some people get upset- yes iv'e tried searching and couldn't find anything....

Can anyone tell how to push/roll start my bike? It's a 250 so light and I can get a reasonable run up (sitting on it) but a bit of a muppit working out what to do next! Sure I can jump start a car no-worries.....but I can't roll if not in neutral and flicking into gear etc and pushing start button isn't working.......so basically how is the standard way of jump starting ya bike?
Really pissed me off this morning out of the blue the bike wouldn't start, never ever been a prob always starts easy, I had bugger all gas and wound it down before switching to reserve- muppit.....have now filled up but no joy as I can't jump it properly!

Appreciate help!

[Big Dog]

Fuel "on" or "Reserve" (as required).
Select second.
Key on.
Kill switch off to enable motor (or on depending how you see it, so that the bike would normally start).
Pull in clutch.
Get going as fast as you can manage.
Drop the clutch.
As soon as you hear it catch clutch back in.
If necessary roll on some throttle (from cold go to the normal choke position).

From here your cooking with gas.
Keep in mind some bikes will need third, others will need first.
If you find you almost depart the bike over the handle bars in second go to third.
If you find you have almost no compression resistance go to 1st.

[paturoa]

Find a down hill slope (push your bike to the top)

Turn ignition on, kill switch, fuel tap etc.

Put it in 2nd (or 3rd gear if you can run really fast)

Hold the clutch in and run like Ben Johnston (don't forget to take the bike with you)

Leap on the bike and at tjhe same time as your arse hits the seat, drop the clutch quickly, with a bit of throttle.

Ride.

PS what have the KKK and anebolic steriods got in common? The both make Ben Johnston run very fast.

[Big Dog]

For future reference this is Push starting or bump starting.

Jump starting is something you do with Jumper Leads.

[Big Dog]

PS what have the KKK and anebolic steriods got in common? The both make Ben Johnston run very fast.

And his dick shrivel.

[firefighter]

For future reference this is Push starting or bump starting.

Jump starting is something you do with Jumper Leads.

yeah ta I'd changed that but I can't change the title! Got it started just needed a faster run up thanks fellas! I bloody hope it starts in the morning......

[EJK]

Bump start from 2nd gear?

Is it more effective than bumping from the 1st?

[firefighter]

Bump start from 2nd gear?

Is it more effective than bumping from the 1st?

yeah I dunno if it's just my bike or what but it won't move in gear with clutch in I had to flick it in gear when ready to start, and it won't do second only first.....it's running sweet now.....it's a ZZR 250 duno if that means anything to ya but yeah definately only gives me first and certainly no rolling when in gear.

[ynot slow]

The old XR200or ER185 was piece of piss,put in neutral,run sit sidesaddle on seat flick gear lever into 2nd,clutch in when running,didn't use clutch from neutral to 2nd.Throw leg over seat,easy and impressive lol.

Had a mate who had problem with his GSX750 years ago,usually pushed in neutral,jumped on and hit 2nd at time of hitting the seat.

[Squiggles]

yeah I dunno if it's just my bike or what but it won't move in gear with clutch in I had to flick it in gear when ready to start, and it won't do second only first.....it's running sweet now.....it's a ZZR 250 duno if that means anything to ya but yeah definately only gives me first and certainly no rolling when in gear.

I regularly bump start hanne's ZZR, 1st gear tends to just lock the rear, get it moving in first gear, let the clutch out slightly and click it up into second, then she wont lock as easy, once moving, put your weight back a bit and let the clutch out, hopefully you'll have enough momentum to start it (i usually just roll down the slight incline of my driveway and start at the bottom)

[vagrant]

yeah I dunno if it's just my bike or what but it won't move in gear with clutch in I had to flick it in gear when ready to start, and it won't do second only first.....it's running sweet now.....it's a ZZR 250 duno if that means anything to ya but yeah definitely only gives me first and certainly no rolling when in gear.

Perhaps you need to adjust your clutch a little.
Some bike have a very close tolerance on the clutch adjustment. Sometimes you need to rock the bike back and forward to break the clutch stiction before you can push it. Try these things,
Can you stop on the flat with the bike running, in gear, clutch in, without the bike trying to creep forward?
Is the idle higher or lower like that as opposed to when you are in neutral?
After the bike has had a run and is warmed up, shut it off and try pushing it with the bike in gear and the clutch out.

[TygerTung]

The oil in the clutch can drag if it has been sitting, making it difficult to push.

It's always a good idea to put it in second and pull it back onto compression, that way you have a full revolution to get the engine up to speed before you lock the back wheel under compression. Not sure if it applys so much to more than 1 cylinder engines though.

[xwhatsit]

The oil in the clutch can drag if it has been sitting, making it difficult to push.

It's always a good idea to put it in second and pull it back onto compression, that way you have a full revolution to get the engine up to speed before you lock the back wheel under compression. Not sure if it applys so much to more than 1 cylinder engines though.

Definitely. If you're locking the rear wheel, you are a) not rolling it back against compression first, and/or b) not slamming your arse down on the seat properly as you dump the clutch. Running alongside the bike as you dump the clutch is never going to work, you'll just lock the rear and then drop the bike.

[kevfromcoro]

Bump start from 2nd gear?

Is it more effective than bumping from the 1st?

as long as you can get it to turn over....2nd or 3rd is usually easier
just rode my xr down from Whangraei...stopped at the top of the brendrwens for a smoke..bike wouldnt go.....decided to bump start it......down the hill i go ...2nd no..3rd no,,,finally got it to fire in 4th gear..and a big ass down on the back of the seat.

[Kickaha]

Running alongside the bike as you dump the clutch is never going to work, you'll just lock the rear and then drop the bike.

Depends on what gear is used and how fast you push, I've done it on 4 cylinder bikes with out hopping on the seat with 550 and 750cc bikes

Also seen 2 stroke twins push started at walking pace