cbr 1000f starting issues,

mooserx · Nearly there... Joined: 14 Jul 2007 Karma :

hi all,

i have a '92 j reg cbr 1000f, just lately i've been having trouble getting it started from warm, there are no running problems i.e cutting out, stalling, or running lumpy. it just refuses to start from hot after a run, starting from cold is fine on half choke.

i've balanced the carbs, changed air filter and got brand new plugs, but still no joy.

of course, this problem leads to the bike flooding and making the starting even more difficult. It will start with a bump start of off a jump start but as you can imagine this is far to inconvenient especially when i'm out on my own.

if anyone has any suggestions on possible causes or cures then i'm all ears.

ta very much

mooserx
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TL1000r-handful.

mattsa21 · Renault 5 Driver Joined: 02 Oct 2007 Karma :

spark plugs fouling?
one of my old bikes had plugs which fouled when hot (expansion of the electrode).

Its not enough to effect normal riding, but can be enough to prevent warm starting..petrol puts the spark out etc.

Just a thought Smile

finpos · World Chat Champion Joined: 13 Sep 2005 Karma :

Those bikes are notorious for poor starting on old batteries - the starter drains all the power out of the battery and there's nothing left to run the ignition so you get no spark. The fact it starts off a boost points to that being the problem.

If the battery is a couple of years old, replace it.

F.

rotax81 · Nearly there... Joined: 10 Sep 2008 Karma :

the award goes to the post above, get a new battery.

........ and new plugs would also help Thumbs Up

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ZX636C6F road. ZX636C1H track. ZX7R redundant. ZX0.5R minimoto as ornament.
Audi A4 Avant 1.9TDi and VW Transporter 2.5TDi 888 Special (no mot and tax lol)

mooserx · Nearly there... Joined: 14 Jul 2007 Karma :

thanks for the relies, but new plugs and battery are already fitted,

an aquaintance mentioned something about the coil(s) ? if they are on the way out then starting fom hot would be an issue.

any more replies greatfully received

mooserx

rotax81 · Nearly there... Joined: 10 Sep 2008 Karma :

could also be the starter motor. if worn they need a lot more power to run and has the same effect as a low/old battery.
i doubt it will be the coils as it starts with a jump/push ok.
when coils pack in they usually give up after a few miles from cold leaving you on the road side.
____________________
ZX636C6F road. ZX636C1H track. ZX7R redundant. ZX0.5R minimoto as ornament.
Audi A4 Avant 1.9TDi and VW Transporter 2.5TDi 888 Special (no mot and tax lol)

finpos · World Chat Champion Joined: 13 Sep 2005 Karma :

If it starts straight off a boost, I'd still be suspicious of the battery. Is it the right type? Is the charging system working properly?

The tell tale is if the starter sounds absolutely fine off the battery, but then spins just that little bit faster with a boost.

f.

Billriach · Derestricted Danger Joined: 01 Jun 2012 Karma :

Mine has caught me out a couple of times.

Fuel down to under half a tank, parked up fo a few days on the side stand, can be a bastard to start hot or cold.
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Honda CD185T
Honda CBR 1000F-M
Honda CB125 TD -E Oh, and my Daughters Sym Simply 50cc scooter (til shes 17)