Starts on occasion

mptexas

Member
I have a 2006 Big Dog K9. Part of the time it will start fine and part of the time when I try and start it I can hear a single click. When I hear the single click I can push the button on the starter and it will start fine. Where should I start troubleshooting?
 

Mickmorris

Well Known Member
Supporting Member
I have a 2006 Big Dog K9. Part of the time it will start fine and part of the time when I try and start it I can hear a single click. When I hear the single click I can push the button on the starter and it will start fine. Where should I start troubleshooting?
So you have a slam button you are using to start your bike?
 

Mikeinjersey

Well-Known Member
I have a 2006 Big Dog K9. Part of the time it will start fine and part of the time when I try and start it I can hear a single click. When I hear the single click I can push the button on the starter and it will start fine. Where should I start troubleshooting?
The single click is probably the compression releases . They come on for 1second at the same time the starter gets the voltage from the EHC to crank. When you push the slam button on the starter you are effectively doing the job of the EHC. Pull the green wire off the starter solenoid and read the voltage when you hit the start button. You should hear the click of the CR's and also see the voltage rise on the green wire to approx 12vdc. Your problem is obviously intermittent so do it a bunch of times to see the results.
There are several possible causes and when it's intermittent it makes it more difficult. Test first then start by making sure your battery is in good health (load Test) and you have clean and tight connections. Pull the connectors off your EHC and clean and replace the dielectric grease. Check the ground at the starter for clean and tight. The green wire itself could of had a bad connection . If all wires, connections and battery seem good but you still have the issue it's possible the EHC is the issue. If you bought the bike and it had the slam button on it your problem was probably already there. The slam button is a great work around for that problem and an EHC is expensive.
 

mptexas

Member
The single click is probably the compression releases . They come on for 1second at the same time the starter gets the voltage from the EHC to crank. When you push the slam button on the starter you are effectively doing the job of the EHC. Pull the green wire off the starter solenoid and read the voltage when you hit the start button. You should hear the click of the CR's and also see the voltage rise on the green wire to approx 12vdc. Your problem is obviously intermittent so do it a bunch of times to see the results.
There are several possible causes and when it's intermittent it makes it more difficult. Test first then start by making sure your battery is in good health (load Test) and you have clean and tight connections. Pull the connectors off your EHC and clean and replace the dielectric grease. Check the ground at the starter for clean and tight. The green wire itself could of had a bad connection . If all wires, connections and battery seem good but you still have the issue it's possible the EHC is the issue. If you bought the bike and it had the slam button on it your problem was probably already there. The slam button is a great work around for that problem and an EHC is expensive.
Thank you, I will be going through these steps. I have noticed the ground on the battery does not stay tight if I wiggle it and nothing I do keeps it tight. Ordered a new battery to eliminate that or the battery as the cause.
 

Mickmorris

Well Known Member
Supporting Member
Thank you, I will be going through these steps. I have noticed the ground on the battery does not stay tight if I wiggle it and nothing I do keeps it tight. Ordered a new battery to eliminate that or the battery as the cause.
My TP 107 shakes my battery cables loose also. It’s a habit now to just remove the seat & check them every time before I ride. Carry a 10mm in my vest pocket. Lol :oldhardlaugh:
 

mptexas

Member
All, just an update to this old thread. I ended up taking it to a friend who is good at diagnosing electrical issues. I did the new battery, checked out the wires, terminal etc. At the end of the day it was intermittment which made it even harder to figure it. He figure out the ECU is bad, which I cannot complain, I have had a good run. The original one it still in it! Anyway, I will update here when I get the new installed. I will buy this one https://shop.bigdog.net/ehc-rip-conversion-kit-2006-11-mastiff-k-9-ridgeback-carb/
 

knothead

Second Chance Customs
I just checked and I'm out of axels ehc for 05 and up...checked with curtis and he is out...Josh at gateway big dog may have it in stock still l don't know forsure but I would put a axels ehc in your bike it will save you 200.00 plus you don't have to change your factory harness...with the axels ehc you will be back up and running in 10 mins ...with the kit you posted you got to put that harness in which takes a some time to do...I prefer the axels ehc over the RIP kit but that's just me... give Josh a call Tuesday his shop number is 314 291 6333
 
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