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Iridium Spark Plug Gap

Started by Steve C., February 08, 2009, 09:23:36 AM

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Bozo

Quote from: FJmonkey on August 19, 2013, 03:17:38 AM
I guess I should check mine, not sure how many miles I have on them at the moment.

What? no-one used the words snake oil yet, I'm amazed.

My platinum plugs didn't show much of a noticeable difference in power but thats not what I got them for. So far they have >42,000kms with no difference to the initial power, starting or fuel economy (before and after the engine had a spice up) and they still work like new, any standard plugs were great for approximately 15,000kms and then the bike rode rougher etc.

I also know that the same type of plugs made a small noticeable difference in power in the Z1R (now 36,000kms old)- go figure.

Are they worth it, last at least three times longer for twice the price - yes
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

FJmonkey

Quote from: FJmonkey on August 19, 2013, 03:17:38 AM
I guess I should check mine, not sure how many miles I have on them at the moment.

I have over 15K miles on mine, time to pull them and check the valves as well. Bike runs great and still getting about 48 mpg.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

baldy3853

My 1st set lasted 80,000klms, really didn't need to change them, 2nd set has 30,000 still going fine  :good2:

Bozo

Quote from: baldy3853 on August 20, 2013, 08:33:45 AM
My 1st set lasted 80,000klms, really didn't need to change them, 2nd set has 30,000 still going fine  :good2:
There is no reason for these plugs not to last any longer if the engine is well tuned and in good nick, judging by the 80K your engine is at its peak. My platinum's might not last that long but this time I'll run these till I feel a drop off in either fuel economy, power or running rough.
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

andyb

Seriously guys?  Dickwaving about who can make their plugs last the longest?  Really?

Different jetting, fuel quality, riding styles, and engine conditions are going to mean that everyone probably has a slightly different "best" plug for any given engine.  Usually plugs seem to have different characteristics from brand to brand in any given motor.  For example, I used Champions in an old car that could oil foul a set of NGK's inside a month.  In the FJ, I use sidegapped cheap NGK's, and replace them waaaaay before they're due because it makes it easier to get good plug reads when playing with tweaking the motor.

I'd say it's a bit like an oil thread.  Use what keeps the motor running, and don't pay a fortune.  Check often, change regularly, and get on with your life.


Bozo

Gee, some one had a hard night. At no time was I (or anyone else from what I read) "dick waving" its what we gain by passing our knowledge to each other, isn't what this forum about?
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

TRoy

anybody notice how old this topic is?  :sarcastic:

fuck you Danny... see you in about a month  :drinks:


Peace & Love
86FJ 100K+
07Burg650
15Downtown300

baldy3853

Quote from: Bozo on August 21, 2013, 06:17:36 PM
Gee, some one had a hard night. At no time was I (or anyone else from what I read) "dick waving" its what we gain by passing our knowledge to each other, isn't what this forum about?
+1 Bozo  :biggrin: