Author Topic: Starting issues  (Read 899 times)

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Offline Buster1961

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Starting issues
on: 04 December, 2020, 05:42:08 PM
Hi i have been having a few issues starting my 2008 CBF1000 the other morning it will turn over and fire but wont keep running.I then recharged the battery and it did the same thing again,then i tried opening the throttle a little and it then started any ideas?

#1

Offline Shed

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Re: Starting issues
Reply #1 on: 05 December, 2020, 09:02:42 PM
Going to need more info than that.

Has it been sitting around for a while doing nothing, or were you riding it regularly without issue til now?
Have you/someone else been working on it just prior to this happening? Have you been overzealously washing it?
Any fault codes blinking on the dash? You say you've charged the battery, but is it ok? Have you tested it?
Fuel ok? Run/kill switch ok?

 :030:

#2

Offline Crispy

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Re: Starting issues
Reply #2 on: 06 December, 2020, 12:03:09 AM
It could just be the cold weather. As Shed says, more info needed.
Soichiro Honda, I salute you.

#3

Offline Buster1961

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Re: Starting issues
Reply #3 on: 06 December, 2020, 10:47:18 AM
Hi The bike was starting ok with no throttle up till then and it is used three days a week with a 60 mile round trip.

#4

Offline Art

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Re: Starting issues
Reply #4 on: 06 December, 2020, 03:41:16 PM
Have I got this right your start up procedure from cold is

1st attempt - Ignition on, press start button, engine cranks with intermittent firing but no start.
2nd attempt - Ignition on, apply quarter throttle, engine starts, RPM's rise, release throttle and engine idles.

Once warmed up does it start on the button with no throttle?

If not fully describe your start up procedures cold and hot
Last Edit: 06 December, 2020, 03:43:27 PM by Art

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Offline Buster1961

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Re: Starting issues
Reply #5 on: 06 December, 2020, 04:05:09 PM
Yes thatís exactly what is happening.The bike is starting once warm with no throttle

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Offline Art

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Re: Starting issues
Reply #6 on: 06 December, 2020, 05:11:38 PM
Possible condensation in the combustion chamber try the flooded engine starting procedure as per page 62 of the Owners Manual, the idea here is to blow out any condensation. The Owners Manual is normally found under the seat if it has been removed you can download the Owners Manual and Honda Workshop here

Flooded engine starting procedure

1. Leave the engine stop switch set to (RUN).
2. Open throttle fully.
3. Press the start button for 5 seconds.
4. Follow the normal starting procedure.
5. If the engine starts with unstable idle, open the throttle slightly.

If the engine does not start, wait for 10 seconds, then follow steps 1-4 again.
Last Edit: 06 December, 2020, 05:13:12 PM by Art

#7

Offline Buster1961

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Re: Starting issues
Reply #7 on: 06 December, 2020, 05:23:18 PM
Yes I did try that the first time this happened but did not help it start.Only thing that seems to work is open the throttle slightly this worked yesterday anyway.

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Offline Art

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Re: Starting issues
Reply #8 on: 06 December, 2020, 06:16:49 PM
By opening the throttle slightly you're increasing the fuel intake so you may be looking for a PGM-FI fault.

Can you hear the IACV step motor beep when the ignition is switched on?
At what mileage were the spark plugs last changed?
What is the current mileage?

Go through the crank no start starting procedure, cranking the engine for more than ten seconds then check for any current or stored PGM-FI Diagnostic Trouble Codes  there's a how to read DTC's here

#9

Offline Buster1961

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Re: Starting issues
Reply #9 on: 17 December, 2020, 02:35:17 PM
It looks like it was the plugs that were the issue as the bike shop said it had wetted one of the plugs,apparently this is common on hondas.The bike is now starting well again with no throttle.

 


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