How Long do Spark Plugs Lasts ?

Locozodiac · 23 October 2008, 18:22

Being reading lately several brands 2 strokes engines, they recommend cleaning, regaping at each 50 hours use for best performance, nobody specifies life expectacy. So if you care for regular interval clean-ups, use correct 50:1 fuel/oil ratios, run 1/2 to full throttle constantly. Would like to know other Ribnetters experince on this issue, like brands use, clean-up & regap intervals, plugs life expectacy ?

According to my experience, Jonyruds are electrode eaters compared to Tohatsu, so will need to be changed more frecuent in order to perform well. Will others state that this statement is true ? Have had the same experience. The plugs used were Champion.

Happy Boating

The Garfish · 23 October 2008, 18:50

Quote:

Originally Posted by Locozodiac

plugs life expectacy ?

wen a plugg iz noo itt az wan billyon sparrks putt inn itt. sum enjins yewse theez sparrks kwikker thann uvvers butt wen ther gon, ther gone.

yew cann sennd de plugs bakk an av sum noo sparrks putt inn dem.

Quote:

Originally Posted by Locozodiac

The plugs used were Champion.

yus. myne wer pritty gud az wel.

garF

Mollers · 23 October 2008, 18:55

Quote:

Originally Posted by The Garfish

wen a plugg iz noo itt az wan billyon sparrks putt inn itt. sum enjins yewse theez sparrks kwikker thann uvvers butt wen ther gon, ther gone.

yew cann sennd de plugs bakk an av sum noo sparrks putt inn dem.

garF

Or snap the ends off, bury them and grow some more.

The Garfish · 23 October 2008, 19:06

Quote:

Originally Posted by Mollers

Or snap the ends off, bury them and grow some more.

dat ownly werks wiv bullbs nott pluggs yew cawnish nobwangir

gaRF

Mollers · 23 October 2008, 19:08

Quote:

Originally Posted by The Garfish

dat ownly werks wiv bullbs nott pluggs yew cawnish nobwangir

gaRF

Have you tried it? You Midland Muppet.

Downhilldai · 23 October 2008, 19:24

Thort hee woz Mancks

Mollers · 23 October 2008, 21:59

Quote:

Originally Posted by Downhilldai

Thort hee woz Mancks

Now, what rhymes with Manc?

m chappelow · 24 October 2008, 15:37

all depends on how much and how you run and the condition the engine, i have had plugs in engines for 4 or 5 years and have had no bother on the other hand on some engines the plugs need changing every year .having the correct plug and heat range helps too especially with 2 strokes ,if doing a lot of consistant slow or high speed running .with some of the early seagull engine plugs they could be stripped down and cleaned totally, i have one with a fuel priming tap on it .sad spark plug anorack that i am .

PeterM · 24 October 2008, 15:40

Just had mine changed out of a 4 year old ( 310 hour) Opti. It seemed to run noticably smoother on the new ones ! But at nealry £20 (x6) a plug I would hope so to ! All as per merc guidlines !

Nos4r2 · 24 October 2008, 15:54

Quote:

Originally Posted by Blackroady

Just had mine changed out of a 4 year old ( 310 hour) Opti. It seemed to run noticably smoother on the new ones ! But at nealry £20 (x6) a plug I would hope so to ! All as per merc guidlines !

OUCH!

What number are they?You might be able to get some from the States cheaper.

BassBoy · 24 October 2008, 17:26

Does anyone use Iridium plugs. They are supposed to last for ages and give better performance which is supposed to justify the extra cost?

Locozodiac · 24 October 2008, 18:04

Quote:

Originally Posted by m chappelow

all depends on how much and how you run and the condition the engine, i have had plugs in engines for 4 or 5 years and have had no bother on the other hand on some engines the plugs need changing every year .having the correct plug and heat range helps too especially with 2 strokes ,if doing a lot of consistant slow or high speed running .with some of the early seagull engine plugs they could be stripped down and cleaned totally, i have one with a fuel priming tap on it .sad spark plug anorack that i am .

Years of use is relative as you would not have a exact total hour count unless you cary a record of the hours after boating, this would be better than nothing. Ideal would be to put a hour meter to controll better working hours, would be thinking max 300 hours plug life expectacy with 50 hours interval clean-up/regap for normal boating users and 100 hours clean/regap for constant users under daily/heavy basis use.

Happy Boating

PeterM · 24 October 2008, 19:05

the ones in the opti were/ are the iridium ones ( IZFR5G) so thats why cost do much . They are supposed to be changed at 300 hours , if thats one year or 4 so no diffeance there. I guess I paid more than I needed to as I needed them soon.

Nos4r2 · 24 October 2008, 19:10

Quote:

Originally Posted by Blackroady

the ones in the opti were/ are the iridium ones ( IZFR5G) so thats why cost do much . They are supposed to be changed at 300 hours , if thats one year or 4 so no diffeance there. I guess I paid more than I needed to as I needed them soon.

If you can get them to ship....

http://store.usavediscountmarine.com/ngkizsppl5.html

The Garfish · 24 October 2008, 20:21

Quote:

Originally Posted by Mollers

Have you tried it?

de ownly fing iyve tryed growin iz dildows butt i ad trubbul wiv skwatters

gaRf

PeterM · 24 October 2008, 20:33

Thats is less than half what they cost here - got to be worth getting in touch with them - cheers Nos