bump start

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lesron
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Joined: Sat Mar 04, 2017 9:06 pm

bump start

#1 Post by lesron » Wed Jan 31, 2018 5:13 pm

Hi folks never owned a 500 v4 whanted to know how difficult it was to bump start one and is it a legal requirement to have a kick start for uk mot
Quite often bump started my ducati 900ss when i had let the battery run to low wasn't the easiest and i do remember getting some assistance from passing kids
many thanks for any input

begbie
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Location: UK

Re: bump start

#2 Post by begbie » Wed Jan 31, 2018 7:54 pm

Fueled up they are over 200kg (a little less for the RZV ) depending on many factors it could be easy or almost impossible to bump. Why would you not want to use the kick start ?

silverstrom
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Re: bump start

#3 Post by silverstrom » Wed Jan 31, 2018 9:13 pm

Unless you are very big and very strong bump starting the 500 V4 will very quickly get tiring. After a couple of tries it will be the bike bump starting you. Install the kicker and save your strength, and breath.

There is another benefit of having the kicker. You can slowly turn the engine over to make sure the cylinders aren't full of fuel. The petcock is highly prone to leaking and the float valves as well. If you have fuel in a cylinder and then try to bump start it you will bend a connecting rod when it hydraulic locks.

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giron
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Re: bump start

#4 Post by giron » Thu Feb 01, 2018 12:49 am

since the petcock is prone to leaking on the RZ500. It will be a good idea to replace the gas outlets under the tank with a TZR250 3MA under the tank petcock for extra precaution.
1991 3MATZR250SP
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S

silverstrom
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Re: bump start

#5 Post by silverstrom » Thu Feb 01, 2018 2:38 am

giron wrote:since the petcock is prone to leaking on the RZ500. It will be a good idea to replace the gas outlets under the tank with a TZR250 3MA under the tank petcock for extra precaution.
Yes, but it's not exactly practical for a road bike unless you have very thin arms and are double jointed at the wrist and elbow.

podman
Posts: 504
Joined: Mon Nov 16, 2015 1:41 pm

Re: bump start

#6 Post by podman » Fri Feb 02, 2018 6:20 am

Bump starting would baffle a lot of drivers if you stalled it in some traffic...!

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WVWRZ500N
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Re: bump start

#7 Post by WVWRZ500N » Fri Feb 02, 2018 11:49 am

James Mansfield's replica is bump only.

https://www.facebook.com/james.mansfiel ... 54/?type=3" onclick="window.open(this.href);return false;
Regards,
Bill Wilson
Wilson Performance
Lee's Summit, MO
http://www.wilsonperformance.net
Member RZ500 Owners Group #573
816-377-3185
WVWRZ500N@aol.com

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giron
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Re: bump start

#8 Post by giron » Fri Feb 02, 2018 12:43 pm

you don't need thin arms. when the bike will be stored for a few days. The tank lifts up like the hood of a car. :grin: :smt005 :smt006
1991 3MATZR250SP
!993 3XVTZR250SP
1996 RGV250(Lucky Strike)
1994 MC28SP
1995 MC28SP
1996 MC28SP
1985 RG500(Walter Wolfe)
1984 IT490
1985 RZV500R
1985 NS400R
1985 NS400R
1997 VFR750
1992 FZR1000
RGV400
TZR500
TZR350
1990 RZ350
1971 Porsche911S

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