Author Topic: Cold Start difficult  (Read 276 times)

Offline TassieTone

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Cold Start difficult
« on: March 28, 2020, 10:32:59 AM »
Hi all,
Video of problem: https://youtu.be/yCHxvSMLjc8
I bought my 2004 ST1300A a couple of weeks ago.
-Delkevic pipes
-K&N air filter
-71,000 K's
When warm it starts first time and runs fine. But cold starts are difficult.
Here's what Ive done to try and fix the problem:
1. New fully charged battery
2. New spark plugs
3. Additive to petrol fuel injection cleaner and run full tank through.
4. Fresh oil/filter
The cold starts have improved but still difficult.
I'll add a video of the problem.
Hope you can help solve this issue please.
Cheers, Tony
 

Offline Brock

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Re: Cold Start difficult
« Reply #1 on: March 28, 2020, 11:14:59 AM »
 Does the K&N have the outer foam filter fitted? If so remove the outer filter. It could be over fueling due to the filter choking the engine.

From what I have read over the years, STs dont like K&N very much.
Brock
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Online ruSTynutz

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Re: Cold Start difficult
« Reply #2 on: March 28, 2020, 11:27:32 AM »
Sorry to butt in but I'm confused, I've seen this comment re the foam before but my K&N looks like this:  :think1

 

Offline TassieTone

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Re: Cold Start difficult
« Reply #3 on: March 28, 2020, 11:35:07 AM »
OOPS! What I said below is wrong. They do go out when I press Starter. It's just the small side lights that stay on. Sorry.

Forgot to mention that when I jumper my car battery to it it starts straight away even when cold.

Should the headlights go out when you press the starter? They don't on mine. Thought that if they did there would be more "juice" for the spark plugs.
Tony
« Last Edit: March 28, 2020, 01:12:56 PM by TassieTone »
 

Offline Brock

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Re: Cold Start difficult
« Reply #4 on: March 28, 2020, 12:44:01 PM »
OK, the K&N you showed, isnt the problem one..

If bike starts, when jump started, the your battery is suspect. Measure the voltage while cranking, if below 10 volts the battery is no good. Bike starting when warm indicates the battery has charged up while running, but the cold start problem indicates that capacity is lost after sitting overnight..

Its a relatively cheap starting point, to replace the battery.

Most STs will drop the headlight when starting, but there seem to be a few that dont.
Brock
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Offline STeveo

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Re: Cold Start difficult
« Reply #5 on: March 28, 2020, 05:54:06 PM »
Definately turning over too slow. New battery needed.
 

Offline TassieTone

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Re: Cold Start difficult
« Reply #6 on: March 28, 2020, 06:37:07 PM »
Hi Guys,

I've bought a new battery but didn't fix the problem. I've put it on charge tonight and will try again tomorrow morning.
Here's a link to the battery that I bought: Battery: 270CCA. 11.2 Ah

https://www.ebay.com.au/itm/AGM-Battery-YTZ14S-Honda-VFR800X-VFR1200X-Crosstourer-CB1100-CB1300-CBR1100-XX/172342818399?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648
« Last Edit: March 28, 2020, 06:42:43 PM by TassieTone »
 

Offline Jdbiker

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Re: Cold Start difficult
« Reply #7 on: March 28, 2020, 07:17:23 PM »
Cranking does appear to be a bit slow, even though you have fitted a new battery you could have a parasitic draw causing battery to discharge overnight. Check the battery voltage before cold start, should be around 12.5 to 12.7. Also check all battery connections including ground.
Jdbiker.
2008 red ST1300A
1980 Yamaha XS 1100
1974. Yamaha TX 500
1984   Kawasaki GT 750
1975  Honda GL1000
Honda XL 250
Suzuki TS 100
2000 Honda ST1100P
1988 Enfield Bullet 350
 

Offline TassieTone

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Re: Cold Start difficult
« Reply #8 on: March 28, 2020, 07:33:03 PM »
Thanks jd. I was just reading the service manual and it suggests connecting the battery directly to the motor to eliminate bad connections and relay. It's a bit dark here right now but will try this tomorrow. I bet the starter motor isn't very accessible  :crazy
 

Offline Jdbiker

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Re: Cold Start difficult
« Reply #9 on: March 28, 2020, 07:54:58 PM »
Very unlikely itís a starter motor issue, especially since it works fine after warm up. You would have to remove a bits to access the starter including the rear shock absorber.
Jdbiker.
2008 red ST1300A
1980 Yamaha XS 1100
1974. Yamaha TX 500
1984   Kawasaki GT 750
1975  Honda GL1000
Honda XL 250
Suzuki TS 100
2000 Honda ST1100P
1988 Enfield Bullet 350
 

Offline TassieTone

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Re: Cold Start difficult
« Reply #10 on: March 29, 2020, 11:23:32 AM »
Thanks for the tips. In desperation to feel happy, here's what I've done:
Charged battery 15 hours
Cleaned battery terminals
Checked resistance of negative to ground
Checked battery voltages at various stages
Primed fuel pump 3 times
Yippee, happiness is the sound of a V4 engine roaring into life is a joy to hear through Delkevic pipes. I'll try again tomorrow without priming the fuel pump, fingers crossed.
Thanks again
Here's a video
https://youtu.be/tgeyQdfIhzk
 
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Offline Jdbiker

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Re: Cold Start difficult
« Reply #11 on: March 29, 2020, 11:34:31 AM »
Much better  :like but 12.3 v is still on the low side. A fully charged new battery should show about 12.7 volts.
Jdbiker.
2008 red ST1300A
1980 Yamaha XS 1100
1974. Yamaha TX 500
1984   Kawasaki GT 750
1975  Honda GL1000
Honda XL 250
Suzuki TS 100
2000 Honda ST1100P
1988 Enfield Bullet 350
 

Offline Brock

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Re: Cold Start difficult
« Reply #12 on: March 30, 2020, 02:36:12 PM »
As the weather cools, the ability of the battery to hold charge will decrease. In a Tas winter, you would be lucky to start at all, unless you put the bike and a battery charger/tender of some type.
Brock
Asian Correspondent
2003 Honda ST1100PY



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OzSToc # ??
Kinross WA
 

Offline TassieTone

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Re: Cold Start difficult
« Reply #13 on: March 30, 2020, 06:55:34 PM »
Brock,
I've never needed one before but I do put the batteries of my bikes and cars on charge if they sound a bit tired.
Cheers
 

Online ruSTynutz

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Re: Cold Start difficult
« Reply #14 on: March 30, 2020, 07:39:31 PM »
Hi Guys,

I've bought a new battery but didn't fix the problem. I've put it on charge tonight and will try again tomorrow morning.
Here's a link to the battery that I bought: Battery: 270CCA. 11.2 Ah

https://www.ebay.com.au/itm/AGM-Battery-YTZ14S-Honda-VFR800X-VFR1200X-Crosstourer-CB1100-CB1300-CBR1100-XX/172342818399?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2648

Makes me wonder about the quality of the battery when they are that cheap... :think1

A decent brand name battery (Century/Yuasa) for the ST is well over $200... :o
 

Offline denis gibson

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Re: Cold Start difficult
« Reply #15 on: March 30, 2020, 10:41:47 PM »
what fuel are you using. Only use premium 98. 95 absorbs its own weight in water and some stations have more in tank than should. Also hold bike upright when starting cold. Denis.