Breakdown

[twinkle]

CDI

CDI (Capacitive Discharge Ignition) for outboard marine motors is basically a refined version of the old magneto ignition system, except the points have been replaced with electronic circuitry. CDI is used on some (not all) late model marine engines such as Johnson and Evinrude, and some late model motorcycle engines. Do not use a "regular" resistor type plug on a motor with this type of Capacitive Discharge Ignition as this will cause misfire and poor performance. Rather, make sure to use a plug with an inductive type resistor (such as an NGK Z-type spark plug). Use of non-inductive resistor type plugs on these motors can create an open circuit within the spark plug (it will become a dead plug). Modified automotive racing motors also have a form of CDI, (such as Mallory, MSD, Crane and Accel), these should not be confused with the marine or powersports systems, please refer to High output ignition systems for more information.

gn's haven't moved to CDI have they?

[twinkle]

Inductive resistor

At the moment the spark jumps the gap it causes a high frequency burst of energy, this is known as RFI','1','1')">RFI (radio frequency interference). This is why resistor spark plugs were introduces in the mid 1960's. Placing a resistor within the spark plug suppresses the RFI','1','1')">RFI. Without resistor plugs in your car you can experience static on your radio as well as interfere with other sensitive electronic equipment. Some later model vehicles as well as newer Powersport engines must use resistor plugs for a proper "talkback" to the electronic ignition. Outboard marine Capacitive Discharge Ignition (CDI) such as used on some Johnson and Evinrude marine engines require a special inductive type resistor ( as used in NGK Z-type spark plugs). Use of non-inductive resistor type plugs on these motors can cause misfire and poor performance. For automotive CDI high output ignition systems systems (such as Mallory, MSD, Crane and Accel), refer to Resistor plugs for race engines in our racing and tuners gallery for information relative to modified motors.

aha my manual says it uses electronic ignition (transistorized).
I have no idea what most of this means to be honest

[Deviant]

What awful-truth has told me today and shown me fits well with the issues I've had. I'm going to find my nearest Mobil and gas up on that 98 stuff.

I'm also going to get the Coleman's guys to give it a thorough cleanout if I can, and ask them to show me as they do it so I can keep an eye on things in the future- if they'll let me!

You guys have me confused about the spark plugs now... I'll try to get a copy of the manual and see what it says.

[Filterer]

Well don't fill it with fuel, if your just going to get them to empty it! You won't want the old fuel going back in after they clean it out. My best guess is there is some crud in the tank / fuel line so it best to get them to drain, clean and refuel with fresh fuel

[skidMark]

sidestand switch......

[twinkle]

You guys have me confused about the spark plugs now... I'll try to get a copy of the manual and see what it says.

me too. I'm just going to stick with what my manual said to use on my gn. maybe suzuki changed something on the bike... maybe the non resisted spark plugs gave some trouble in rare cases... i dunno

[twinkle]

sidestand switch......

haha the new gn's don't have any of that fancy stuff, better off without it too i say

[Grub]

I'm also going to get the Coleman's guys to give it a thorough cleanout if I can, and ask them to show me as they do it so I can keep an eye on things in the future- if they'll let me!.

If the bike is under warranty you mustn't do ANY work on it as they can use that as an "out" for voiding your warranty altogether. They get paid by the manufacturer for the work, but only if you haven't messed with it.

[Max Preload]

If the bike is under warranty you mustn't do ANY work on it as they can use that as an "out" for voiding your warranty altogether. They get paid by the manufacturer for the work, but only if you haven't messed with it.

It's not new - it's a 2005. And even if it was new, that wouldn't matter as far as "voiding" the warranty altogether. The courts have already ruled that unless something you've specifically done was a contributing factor to any failure, it does not void any warranty under NZ consumer law.

In any case he's talking about the CGA as the LMVD warranties no longer exist since the Motor Vehicle Sales Act 2003 came into effect.

[skidMark]

haha the new gn's don't have any of that fancy stuff, better off without it too i say

mutter mutter suzukis mutter mutter

[Grub]

The courts have already ruled that unless something you've specifically done was a contributing factor to any failure, it does not void any warranty under NZ consumer law.

Of course, but who wants to take the dealer to court and scrap about it there. Like insurance companies, if there's a way out, they'll try it on. The say it's something you've done "... you should have bought it back ..." and you have to prove that you didn't.

[Max Preload]

Of course, but who wants to take the dealer to court and scrap about it there. Like insurance companies, if there's a way out, they'll try it on. The say it's something you've done "... you should have bought it back ..." and you have to prove that you didn't.

At the end of the day, it's really no biggy. Like I said, low fuel & choke on a hot motor = soot fouled. All they'll do is change the plug.

I'd be interested to know why the move to a resistor plug too... especially with a supressor cap.

[twinkle]

The gz250 uses a resisted plug, and shares the same engine with the gn250. There might be a clue there. No idea if it has a supressor cap as well though.

[quallman1234]

Kink in the fuel line?

[Max Preload]

Kink in the fuel line?

Nah - it's only short and there's good flow through the tap.