please help

Pino56

Member
my 06 k9 started blowing flames and popping like m80's out exhaust. seems like one or both cylinders cutting out loading with fuel and then reigniting. no dealer close by so local bike shop tells me its ignition module or ehc failure but he wasn't certain. i then called a dealer who agreed but would need proper testing to be certain. i was also told these ignition parts are only available through aftermarket dealers with a 4-6 week backlog. from my searches here it seems to be a common problem. can anyone please tell me what options i have or recommendations assuming this ignition system is the problem. All imput much appreciated. thanks.
 

BadBrad

2005 Pitbull
Just curious. Is this EFI or carberated? I don't recall ever reading where the EHC caused this type of problem, but there's always a first. Have you made any recent modifications lately?
 

SKOGDOG

One of the old ones.
Sounds like my Harley Shovelwhen the battery started to ground out. Barely run and backfire thru the exhaust like crazy...like gunfire...did that one other time when the battery ground cable separated due to vibration.
 

RRRUFF

Well-Known Member
I would start by cleaning the cam sensor, then new set of plugs. Then if problem is still there suspect the ignition module. Not likely the EHC. Simple things first. Also as asked above have you done any other mods to it?
 

Pino56

Member
Carberated, Totally stock w/ 5k mi. New plugs and battery installed. Can I get my hands on an ignition module or are all these ignition parts 4-6 weeks as dealer stated? Thanks very much for replies.
 

Th3InfamousI

Administrator
Staff member
Carberated, Totally stock w/ 5k mi. New plugs and battery installed. Can I get my hands on an ignition module or are all these ignition parts 4-6 weeks as dealer stated? Thanks very much for replies.
You should be able to order direct from ThunderHeart and get a replacement off the shelf. They sell a programmable unit which plugs right in.

Give Thunderheart a call


It could just be a loose/bare wire, have you checed all your wires and connections? Also trace back the wires ensure nothing is bare.
 

07bigdog

07BIGDOG
Make sure both venturi ports on top of the carb are plugged. I had 1 plug fall off and that's what my bike was doing. Throwing flames out the exhaust and would hardly run.
 

Pino56

Member
checked everything twice. replaced plugs, wires, battery, coil ok, fresh gas. runs good until hot then over 2500 rpms the ignition seems to kick out and refire causing the popping, sputtering etc. ignition module lights red, blue, orange, seem to flash consistantly. only 4k on bike could this module still be bad? dealer can't see me for 3 weeks. any imput, suggestions, appreciated. thanks
 

RRRUFF

Well-Known Member
Red led on the ignition module should not flash. Only the blue and orange with the bike running.
 

BBChopper

Supports 2 Disabled Vets
Troop Supporter
I would start by cleaning the cam sensor, then new set of plugs. Then if problem is still there suspect the ignition module. Not likely the EHC. Simple things first. Also as asked above have you done any other mods to it?
:2thumbs:
 

Pino56

Member
replaced ignition module, same results. does flashing red led indicate anything specific or just saying theres a problem within the ignition system? dealer can't see me for 3 weeks so any imput or ideas much appreciated. thanks to all
 

BigDogBro1

Made in the USA
You might need to check the temperature sensor on the engine.

I know our 2007+ EFI bikes have this sensor but think carb bikes are not the same.

It may be going bad or has a bad connector. The temp sensor monitors the rear (intake area) cylinder temp and will begin engine ignition shutdown if it begins to overheat. I think the sensor is incorporated in an intake manifold bolt with wires coming out of it. It's an S&S engine component.


Posted by: Neil (Nomad2day)
On the engines missing when it gets hot is basically covered here.

S&S module also has engine
overheat protection built into the software. If the
cylinder head temperature reaches a predetermined set
point, the module begins skipping sparks. This
noticeable misfire not only alerts the rider that the
engine is overheating, but also cools the cylinder heads
with unburned fuel. If the temperature continues to
increase, the missed sparks become more frequent. This
alerts the rider that the overheating is becoming more
severe, and provides more cooling to the cylinder heads.
The third stage of overheat protection is very noticeable,
and will cause the engine to run badly at idle. The
overheat protection function can not be disabled, and is
one of the factors that allows S&S to offer increased
engine warranty on complete engines sold with the VFI system.
 
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BadBrad

2005 Pitbull
replaced ignition module, same results. does flashing red led indicate anything specific or just saying theres a problem within the ignition system? dealer can't see me for 3 weeks so any imput or ideas much appreciated. thanks to all
The red LED actually appears to be flashing but if you'll look at the blue and orange LED's, they have a true flash. The red LED is more like it's pulsing or dimming down, but not actually cutting out/flashing like the other 2. This is all normal when the bike is running.
 

Little-Boo

Well-Known Member
Troop Supporter
replaced ignition module, same results. does flashing red led indicate anything specific or just saying theres a problem within the ignition system? dealer can't see me for 3 weeks so any imput or ideas much appreciated. thanks to all
The only other thing that get hot during operation is the coil. Being that you have replaced the ignition module and still has the some problem, I would replace the coil. Your bike does not have a cam senor to clean as mentioned by someone above, it has a crank senor and it that was bad you bike would not start. If you got the adjustable ignition module from Thunder Heart the kit should have included a coil and wires as well. If you only got the module I would say get you a coil. :whoop::whoop:

Carlos
 
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