Author Topic: Starting problem?  (Read 783 times)

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Offline NZSpokes

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Starting problem?
on: July 02, 2020, 08:39:41 AM
My beloveds 15 Street R has decided to not start.

She started it this morning and rode it out the gate. Turned it off to close the gate. Now it will turn over but not fire.

Not sure where to start looking. Its got a recent battery in it and I just re-charged it. Its not got a check engine light on. I fitted new plugs and air filter a couple of weeks back.

Anything common to start with?

Ta

Offline Green_Ninja

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Re: Starting problem?
Reply #1 on: July 02, 2020, 10:47:06 AM
Was going to say battery as that's the usual issue. However as you say it has a revent battery (how recent) double check that the terminals are clean and correctly tigthened up. You also say you have charged the battery, how long since the bike was last used?
It is possible to buy a new battery that is f*cked, ask me how I know  :001:.

Offline NZSpokes

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Re: Starting problem?
Reply #2 on: July 02, 2020, 11:21:59 AM
*Originally Posted by Green_Ninja [+]
Was going to say battery as that's the usual issue. However as you say it has a revent battery (how recent) double check that the terminals are clean and correctly tigthened up. You also say you have charged the battery, how long since the bike was last used?
It is possible to buy a new battery that is f*cked, ask me how I know  :001:.

New battery was about 6 weeks ago. My partner had tried to start the bike for quite some time so the battery was down, thats why I charged it. It came up quickly, my charger is a new one that will display if it has a fault.

Bike is in daily use. 

Offline sabre

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Re: Starting problem?
Reply #3 on: July 02, 2020, 02:02:41 PM
Think back to when you did the plugs & filter - did you disturb anything else?
I'm thinking of loose connections or trapped pipework under the tank?

Steve.
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1989 Yamaha TDR250
recent departures: 2003 ZRX1200r + 2015 CRF250L :-(

Offline Gary-401

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Re: Starting problem?
Reply #4 on: July 02, 2020, 02:31:53 PM
Hi do you have an imobiliser? Could be effecting the bike firing up. Also sounds like fuel side could be plugs/ coils or fuel pump is the pump priming when you turn the ignition on?

hope its a simple job.
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Offline Tomspurs

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Re: Starting problem?
Reply #5 on: July 02, 2020, 06:57:06 PM
*Originally Posted by NZSpokes [+]
My partner had tried to start the bike for quite some time so the battery was down, thats why I charged it. It came up quickly, my charger is a new one that will display if it has a fault. 

Good flat batteries don't charge up quickly, so that is a worrying statement......if you run the battery down you can damage it and possibly damage some electrics. What charger (make / model) have you got and what battery have you got (again, make and model).    :027:
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Offline NZSpokes

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Re: Starting problem?
Reply #6 on: July 02, 2020, 07:28:26 PM
*Originally Posted by Tomspurs [+]
Good flat batteries don't charge up quickly, so that is a worrying statement......if you run the battery down you can damage it and possibly damage some electrics. What charger (make / model) have you got and what battery have you got (again, make and model).    :027:

Battery is a Yusa and charger is a Hyundai HYSC-3800. Charger has been working well on our other bikes.

Offline NZSpokes

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Re: Starting problem?
Reply #7 on: July 02, 2020, 07:30:00 PM
*Originally Posted by sabre [+]
Think back to when you did the plugs & filter - did you disturb anything else?
I'm thinking of loose connections or trapped pipework under the tank?

Steve.

Wondering that myself. It has done about 200 miles since but something loose could have given up.

Offline VBui

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Re: Starting problem?
Reply #8 on: July 02, 2020, 07:39:40 PM
Strong crank but no fire. Without actually being there to diagnose and experience the symptoms it sounds like a possible crank sensor problem to me. If itís turning over strongly but the spark plugs are not sparking and injectors are not firing itís likely.

If itís a 2013+ Iím pretty sure the engine doesnít even turn over if itís an immobiliser issue, it would probably show an immobiliser light if it was a problem.

Offline NZSpokes

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Re: Starting problem?
Reply #9 on: July 03, 2020, 07:43:03 AM
So lifted the tank tonight. Found the Mass sensor vac line had split. Fixed that. Still no start. Took of the airbox and pulled a coil, put a plug in it and spun the motor. Healthy spark.

Then spun the bike over looking down the throttle bodies, injectors are not firing. Wondering if the fuel pump has a fault.

 


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