Bad ground question

Freakie

Freakie

Location
Cape Town
In fact...you want to also run a heavy duty cable (like the black negative battery cable) from your engine block to the aluminium case of the ebox....this is good insurance so that your earths are rock solid and you wont fry your stator to ebox leads anytime...which happens at the worst of times.
 
ryan0

ryan0

Location
kent island maryland
Freakie said:
In fact...you want to also run a heavy duty cable (like the black negative battery cable) from your engine block to the aluminium case of the ebox....this is good insurance so that your earths are rock solid and you wont fry your stator to ebox leads anytime...which happens at the worst of times.
Click to expand...

EXACTLY!!! I did just that I ran a 8awg marine tinned wire from where the main ground bolts to the starter to the ebox than one back to the battery basically making a good ground loop. I cured a ton of "quirks" i.e. When you hit the start and get a click that stopped and the hiccups while running greatly went down as well as it made the engine ALOT More crisp. Basically due to the fact the CDI has clean power and ground I'll bet 80% of the MSD CDI issues people have is due to poor ground. Iv ran enhancers in 6 different skis and iv never had a single issue with them. I truly believe I owe it to the fact I supply them with good grounds which doesn't burn them up.

I do electronics for a living and RPM's are a frequency just like sound best way to relate to people think of when you hear a great sound system in a car it sounds clean and crisp vs. your "friend" that hooks it up and skimps on the ground connection so the speakers sound like a supercharger blower wine when you hit the gas. what your hearing is actually a ground loop aka more positive power than negative due to poor grounds. The exact same thing happens in skis the CDI isn't fed a good ground it's trying to play the "rpm song" but there's background noise that causes those rpm "notes" to not play cleanly....


Sent from my iPhone using Tapatalk
 
Last edited:
pigpen

pigpen

Location
kalispell
ryan0 said:
EXACTLY!!! I did just that I ran a 8awg marine tinned wire from where the main ground bolts to the starter to the ebox than one back to the battery basically making a good ground loop. I cured a ton of "quirks" i.e. When you hit the start and get a click that stopped and the hiccups while running greatly went down as well as it made the engine ALOT More crisp. Basically due to the fact the CDI has clean power and ground I'll bet 80% of the MSD CDI issues people have is due to poor ground. Iv ran enhancers in 6 different skis and iv never had a single issue with them. I truest believe I owe it to the fact I supply them with good grounds which doesn't burn them up.

I do electronics for a living and RPM's are a frequency just like sound best way to relate to people think of when you hear a great sound system in a car it sounds clean and crisp vs. your "friend" that hooks it up and skimps on the ground connection so the speakers sound like a supercharger blower wine when you hit the gas. what your hearing is actually a ground loop aka more positive power than negative due to poor grounds. The exact same thing happens in skis the CDI isn't fed a good ground it's trying to play the "rpm song" but there's background noise that causes those rpm "notes" to not play cleanly....


Sent from my iPhone using Tapatalk
Click to expand...

Glad I read this, makes a lot of sense! I'll be doing this while my ski is apart.


Sent from my iPhone using Tapatalk
 
long beach local

long beach local

long beach local
Location
Az
I had an experience with a nearly new MSD Enhancer that had intermittent spark issues that a buddy just gave to me in frustration. I installed it and it worked for about 2 rides then ski wouldn't start. Hmmmm ??? I removed ebox and split apart but didn't unplug anything. After removing screws that hold Cdi in place and black ground wire loops I noticed chalky white corrosion in threads and thought this is a ground problem. I see similar issues as I work for an electric utility it's ac but electricity always tries to find its way to ground.Or ?? It's crazy stuff, Anyway I noticed the enhancer differs from oem it has an aluminum plate on the back side which I believe is needed to complete ground circuit. I scraped this plate nice and shiny ,cleaned everything applied some axle grease to threads reassembled and fired right up and runs great now no problems 50 gallons ran thru it. I still haven't told my buddy his enhancer is in my surfski yet.
 
You must log in or register to reply here.
Top Bottom