Dog wont fire

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Re4peR26

Member
Hi guys my name is Deven for those of you who missed my intro!

Anyhow, After a long summer and 2,960 miles of riding my dog I LOVE IT! I've had to fix a few issues.. one being my headlight so i just ran a jumper wire and it has been working fine... However now I have a much bigger issue :(

Sometimes, My bike would randomly die and start sputtering, So what I did was replace the battery and spark plugs, Ran great for a while, Now my problem is kinda the same thing but yesterday i let it run for about 5 mins shut it down it sat for about 3 hours I tried to start it back up and get nothing... It will crank and crank and crank but will not start, I'm no expert but im guessing it has to do with spark since i smell gas.. Oh and also my nutrual light went out and I searched the forums here (like normal lol) and I did every thing I could to trouble shoot it, Checked wires at tach, EHC, and at tranny sensor and still got nothing.

So with all that being said.. As the bike sits right now its ready for a wireplus install, I was trying to not do that but im thinking thats my only option.. ANY help is greatly appriciated!
 
W

woodbutcher

Mr. Old Fart member #145
Staff member
check your plugs to see if they are wet. make sure the enricher is pushed all the way down.
 
R

Re4peR26

Member
Yes, I'm from Ohio.. I have just did the plugs, Checked gap aswell.. Enricher is never touched and verified it was infact down..

I was toying around with it tonight after reading some stuff on here... I found this out.

Thunderheart LED is not lit up.

On the EHC its self there are lights.. I looked up what lights are what, and When i go to hit the RUN button.. The red ignition light comes on the EHC.

Side note.. Power was flashing on and off and on and off I took the headlight apart unplugged it that fixed the power problem there.. (I had the headlight being jumperd from the tail light)


Any idea as to why that Ignition light would be on?
 
stlmikie

stlmikie

I wish I had more money.
So while your trying to start it the light is not flickering? If its not that would indicate faulty ignition module or cam/crank sensor.
 
Th3InfamousI

Th3InfamousI

Administrator
Staff member
ignition light is good. Thunderheart module should light when you hit run and should flicker while cranking. check power going to ur ignition module
 
R

Re4peR26

Member
Well I checked out a few more things... Im showing I have power going to the ignition module, However all i have for the moment is a test light lol, How ever its one that will show you weather its a positive or negative.

Perhaps its my cam sensor??? I checked it and it looked fine apperaed clean and didnt smell like anything..However there was a tiny tiny amount of oil?
 
Dakotabos

Dakotabos

Well-Known Member
Calendar Participant
Troop Supporter
cam/crank sensor easy fix HD Part on your bike. I have a 04 and that was my issue when i had that issue. When it warms the motor up it died. FUBAR in traffic. :bang:

start the bike grab your wifes blow dryer (Or Yours :) ) The Cam Sensor is down by your right heal. Heat it up if it dies it has a hair line crack in it. Replace and RIDE LIKE HELL


Sounds like you are getting your lights that you need and also I would check the gas cap and make sure its not vapor locking (Another issue with out chopper)
 
DRBarnhart

DRBarnhart

Insert title here...
Re4peR26 said:
Perhaps its my cam sensor??? I checked it and it looked fine apperaed clean and didnt smell like anything..However there was a tiny tiny amount of oil?
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It's rarely possible to check electrical components by looking at them unless they're totally smoked! Besides checking with a hairdryer (as Dakotabos suggested) there are other things you can check on the cam sensor but you'd have to get access to a multimeter or better yet buy one!

Dennis

PS If your problem turns out to be the cam sensor the WP wouldn't have fixed it but you'd have spent a shit load of money! Plus, you shouldn't even think of doing the WP unless you have a multmeter!!!
 
Diesel Dan

Diesel Dan

Well-Known Member
Is there a Diagnostic Flowchart on here for the thunderheart Ignition module if it takes a dump??????That would be nice to print it out and have it on hand,so you could run down it and do test procedures...... I searched but didnt find Diddly.......This sounds like a Ignition problem to me....Pull your cam and crank sensor and spray it with some Ether (Starting Fluid) it will show a crack INSTANTLY if there is one, if there is,replace that component,if not.....you got some Ignition module diagnosing to do....FIND A FLOWCHART for that Thunderheart setup,you should be ok then....Also replace plugs if they are fuel fouled.
 
R

Re4peR26

Member
Ok, did a number of tests... I got power to everything I checked for an arc from coil got nothing, Got power to coil, Got power coming to and leaving the thunderheart so... Im going to have to say its the coil... On the cam sensor I took that all off cleaned it throughly, Looks like its in good working order, However i think I may have to replace that aswell.. Because sometimes my bike would die so that may have something to do with it.
 
R

Re4peR26

Member
After doing more reading on here, lol I could read this site for hours... I'm thinking it would be a good idea to go ahead and replace the coil and cam sensor... Anyone have any good upgrades or even just good stock type parts.. Perhaps a place to order them or part numbers thanks again!!
 
R

Re4peR26

Member
Thought I'd add this in there aswell... The Thunderheart mod LED was NOT on at anytime NOR blinking while cranking... However if I left the key on unplugged the thunderheart and plugged it back in LED would light up solid for 2 seconds then go back off so im guessing it infact works?
 
DRBarnhart

DRBarnhart

Insert title here...
Re4peR26 said:
Got power to coil, Got power coming to and leaving the thunderheart so... Im going to have to say its the coil...
Click to expand...
Not necessarily.
Re4peR26 said:
On the cam sensor I took that all off cleaned it throughly, Looks like its in good working order,...
Click to expand...
Like I said before, you can't tell shit by looking at it!
Re4peR26 said:
The Thunderheart mod LED was NOT on at anytime NOR blinking while cranking... However if I left the key on unplugged the thunderheart and plugged it back in LED would light up solid for 2 seconds then go back off so im guessing it infact works?
Click to expand...
With what you're describing I'd be more likely to guess that it isn't working. Actually, it sounds more like it's doing it's internal self test but that doesn't mean it works!

I'd be looking at the cam sensor...

Dennis
 
R

Re4peR26

Member
DRBarnhart said:
Not necessarily.Like I said before, you can't tell shit by looking at it!With what you're describing I'd be more likely to guess that it isn't working. Actually, it sounds more like it's doing it's internal self test but that doesn't mean it works!

I'd be looking at the cam sensor...

Dennis
Click to expand...
Would A bad cam sensor, Hold back spark from leaving the coil?
 
R

Re4peR26

Member
DRBarnhart said:
Absolutely!!! A bad cam sensor keeps the spark from happening in the first place...

Dennis
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You da man Dennis, I really appreciate your help, I have been doing some home work on ignitions aswell, Ive seen some like Crane Cams, Comes with Coil, Plugs, and what seems to be a replacement cam sensor, are those a pretty good match up for my kinda dog?
 
RRRUFF

RRRUFF

Well-Known Member
Good advice here! When you press the "run" button you should have a red led light up on the ignition module and stay lite. While pressing the "start" button you should have two more leds on the ignition module cycle on and off as the engine turns over, this is your cam sensor signaling the ignition module to send electrical pulse to the coil which fires the spark plugs. If no leds on the ignition module are cycling and the red led stays lite then suspect cam sensor. If red led on ignition module will not stay lite then suspect the module sinse you have power coming to the module. If no consistant power coming to the Ig. module suspect either the circuil board in the handle bar switch or the key switch. Hope I haven't muddied the water too much, hope this helps.
 
R

Re4peR26

Member
RRRUFF said:
Good advice here! When you press the "run" button you should have a red led light up on the ignition module and stay lite. While pressing the "start" button you should have two more leds on the ignition module cycle on and off as the engine turns over, this is your cam sensor signaling the ignition module to send electrical pulse to the coil which fires the spark plugs. If no leds on the ignition module are cycling and the red led stays lite then suspect cam sensor. If red led on ignition module will not stay lite then suspect the module sinse you have power coming to the module. If no consistant power coming to the Ig. module suspect either the circuil board in the handle bar switch or the key switch. Hope I haven't muddied the water too much, hope this helps.
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Thanks for the reply!!

When I hit the run button, I have great power everywhere (where there should be atleast) However, The LED does not light up on the thunderheart.. So im guessing its my cam sensor.. Does anyone know where or what part # I should order?? I guess ill go ahead and replace it and start from there.

Or Ive done some research and seen Crane cams makes a nice kit Comes with Coil, Sensor and Wires? Is that easliy installable or not worth it?
 
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