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honda vfr 400 not starting

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kevinlotz
L Plate Warrior



Joined: 29 Jul 2015
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PostPosted: 05:12 - 29 Jul 2015    Post subject: honda vfr 400 not starting Reply with quote
Hi all I bought a honda vfr 400 the guy said the bike was standing for a while and there was nothing wrong with the bike but the bike swings but doesn't start I tried checking the spark plug and leads to see if there is a spark and it was sparking not sure what is wrong is there anyone that can help thanks Very Happy
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samv
Derestricted Danger



Joined: 26 Jul 2015
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PostPosted: 10:04 - 29 Jul 2015    Post subject: Reply with quote
do the plugs get wet when you try starting her?

i would start by checking the fuel system. no clogged filters or lines?

clean the carbs and check for any clogged jets.
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moonzoomer
World Chat Champion



Joined: 01 Jul 2012
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PostPosted: 10:31 - 29 Jul 2015    Post subject: Reply with quote
Try using another battery, the VFR 400 is really fussy when it comes to batteries and starting voltages, really fussy. As already mentioned check for stale fuel, drain and clean carbs/jets etc.
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Val
World Chat Champion



Joined: 03 Nov 2012
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PostPosted: 11:49 - 29 Jul 2015    Post subject: Re: honda vfr 400 not starting Reply with quote
kevinlotz wrote:
Hi all I bought a honda vfr 400 the guy said the bike was standing for a while and there was nothing wrong with the bike but the bike swings but doesn't start I tried checking the spark plug and leads to see if there is a spark and it was sparking not sure what is wrong is there anyone that can help thanks Very Happy


That looks nice, where are you based if you are near Bracknell I can try to help you.

Change the spark plugs. Does not matter they have spark you need to change them anyway.

How much time was left without running? You need to clean very well the fuel system including carbs and jets. If it was really long time and the tank was left not full, it may have rusted. That means serious tank cleaning before you try to run it.

You can test that it starts by spraying for 1 second a little starting fluid in the air filter

https://www.halfords.com/motoring-travel/engine-oils-fluids/fuel-oil-additives/holts-cold-start-400ml

If it starts and than stops that will mean most probably the jets need cleaning.

The first thing I would do after test start is to change the oil and coolant too. If it was left long time I would clean the coolant system too before I change the coolant with new.
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