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FROSTY
8th October 2006, 07:30
A quick bit of advise for owners of cbr/zxr/fzr 250s and zxr400s etc
Basicly the folks with little money and spark plugs that cost $25.00 each to replace.
I see a lot of folk who flood their bike then foul up the plugs trying to start it
Normally the only cure is replacement plugs.
Before you do that though--try getting them bead blasted first.
It costs a fraction of the price of a set of new plugs

paturoa
8th October 2006, 08:05
soak them in vinegar for a few hours, works a treat!

Crasherfromwayback
8th October 2006, 08:10
A quick bit of advise for owners of cbr/zxr/fzr 250s and zxr400s etc
Basicly the folks with little money and spark plugs that cost $25.00 each to replace.
I see a lot of folk who flood their bike then foul up the plugs trying to start it
Normally the only cure is replacement plugs.
Before you do that though--try getting them bead blasted first.
It costs a fraction of the price of a set of new plugs

Price them up for a Honda RS 250.....the correct ones used to be well over $100.00 each! Yikes.....plug chop anyone!!

sAsLEX
8th October 2006, 08:14
wewll cyclespot quoted alot more than that for the ones for my NC plus a wait of a few weeks ex japan. Much cheaper from Repco, they had to order them in but next day and a 4th the price of the bike shop

nadroj
8th October 2006, 08:16
Call in & chat up your local hire centre staff. Most hire co's have a spark plug tester & sand blaster unit for cleaning customer fouled plugs and are open most days. Beers work best for payment on weekends.

BornToLean
8th October 2006, 08:17
Buy a can of CRC Electra Clean. It disolves all oil in seconds just like magic, just keep away from plastics. $20 from Bunnings for large can. (Don't get confused with Contact Cleaner, useless by comparison.)

Wasp
8th October 2006, 09:35
i recently bought new plugs(NGK CR8Es), $20ish each.... was only another $14 each for the iridium ones but they didnt have the right ones

not that it matters now anyway

B-rad
8th October 2006, 10:57
Get the plug modem number and go down to your local supercheap. Probably be a bit cheaper. They will have to order them in though. Mine were $17 a plug for the zxr

Scouse
8th October 2006, 11:06
soak them in vinegar for a few hours, works a treat!have you tryed soakin yer nob in vinegar for a few hours

classic zed
8th October 2006, 11:57
I have had a lot of sucess drying them out with a small blowtorch, burns off any oil and fuel residue, it also heats them up nicely so that when you put them back in they fire straight away.

Never clean plugs with a steel wire brus, bits of steel can get left behind on the much harder porcelain and cause a misfire. A brass wire brush doesnt have the same problem.

Ixion
8th October 2006, 12:07
Yes, classic zed has it. Burn them out (gas stove works a treat, or one of them little butane pencls - not oxy-acetylene), then a wire brush with a brass brush. Wiggle the strands of the brush right down inside the plug.

Every two stroke rider knows the drill. But I don't bother too much nowdays, cos none of my plugs cost more than about $5. Bugger paying 5 times that.

crashe
8th October 2006, 12:43
awwwwwww gee I only pay $5 to $6 each for my two sparkplugs...
:banana: :wari: :2thumbsup

Jeaves
8th October 2006, 14:04
$4 for the RG's plug :wari:

paturoa
8th October 2006, 14:15
have you tryed soakin yer nob in vinegar for a few hours

... nope, tell us, whats it like?:(

seriously, vinegar is a mild acid, it cleans off any oil residue (2 stroke or 4 stroke) and any carbon build up from running too rich. After a few times thru it takes the glaze off the ceramic upper, but that is only cosmetic.

KLOWN
8th October 2006, 16:24
$4 for the RG's plug :wari:

I put the iridium(sp?) plugs in my rg ($20) and it was such an improvement, had fouled(sp?) my plugs three times before I put it in.

iwilde
9th October 2006, 09:30
... nope, tell us, whats it like?:(

seriously, vinegar is a mild acid, it cleans off any oil residue (2 stroke or 4 stroke) and any carbon build up from running too rich. After a few times thru it takes the glaze off the ceramic upper, but that is only cosmetic.

When you take the glaze off the plug is stuffed, the carbon penatrates the ceramic efectively shorting it out. Sandblasting does the same, your plugs are clean and will work, but only for a reduced time.

paturoa
9th October 2006, 10:03
When you take the glaze off the plug is stuffed, the carbon penatrates the ceramic efectively shorting it out. Sandblasting does the same, your plugs are clean and will work, but only for a reduced time.

I was talking about the glaze on the top of the plug, not the bit at the tip. The bit at the tip doesn't look like it has glaze on it anyway??

That aside I haven't noticed a reduced life time using vinegar to clean plugs and this is a cheap way and really easy way to resurect (sp?) a naf plug.

I've used this for all sorts of motors (except outboards - I always buy new plugs for them)

Jeaves
9th October 2006, 14:11
I put the iridium(sp?) plugs in my rg ($20) and it was such an improvement, had fouled(sp?) my plugs three times before I put it in.

Tryed B8EGV (those NGK racing ones or whatever) that was $11.60 but fouled just as fast as a normal one :Pokey: . Might put another one in now that the carb settings are mint .

placidfemme
9th October 2006, 14:19
A quick bit of advise for owners of cbr/zxr/fzr 250s and zxr400s etc
Basicly the folks with little money and spark plugs that cost $25.00 each to replace.
I see a lot of folk who flood their bike then foul up the plugs trying to start it
Normally the only cure is replacement plugs.
Before you do that though--try getting them bead blasted first.
It costs a fraction of the price of a set of new plugs

Yeah they bloody expensive for the ZXR's

I had performance plugs on my bike, and when it died we (Aff-man and myself) removed the old ones, tried to clean them... and ended up having to buy some more...

I took in the old ones and they said to get the same type (performance... dunno which ones they are) would cost me about $40 each... so I opted for the standard ones at $20 each

SARGE
9th October 2006, 14:19
have you tryed soakin yer nob in vinegar for a few hours

soak it in Cider.. ( wait for it ........)


seriously .. a bench grinder with a wire wheel works great

Swoop
9th October 2006, 14:30
seriously, vinegar is a mild acid, it cleans off any oil residue (2 stroke or 4 stroke) and any carbon build up from running too rich.
And it is also good for relieving sore throats! Swig a capful to kill the bacteria living there... [seriously]

Ixion
9th October 2006, 15:10
Tastes good too. I take a couple of capfulls every evening. Also good to keep the stomach pH correctly acidic

roogazza
9th October 2006, 15:18
Repco trade price, Iridiums for the Bandit about $13. each ! Which is about half price. Pick your heat range though. G.

KLOWN
9th October 2006, 18:49
Tryed B8EGV (those NGK racing ones or whatever) that was $11.60 but fouled just as fast as a normal one :Pokey: . Might put another one in now that the carb settings are mint .

you should definitely try the iridium spark plugs, well worth the money in my opinion.

Cactuz
29th November 2006, 09:11
I got a GSXF400 and shopped around, the cheapest was 67.50 for set of four from Repco. Plugs are so rare they had to get em shipped in.

I do recomend going to Motomail clearence store in Kingsland. I was down there on Sat n noticed they have a box of assorted plugs for $1 EACH!!!!! its right at the back next to tank gards. Hope this helps

Ghost Lemur
29th November 2006, 12:00
Every two stroke rider knows the drill.

Explain further please.

My final remaining starting issues seem to be plug related. It's a new plug and I seem to solve it by cleaning it in petrol (Lintons recommendation). Going to start trying different plugs, bought a 7 on his recommendation, and it had an 8 in there when I got it.

Ixion
29th November 2006, 12:16
Wot I said. Drop of petrol down inside, heat plug until it stops smoking, and a wee bit more (but NOT so hot that stuff gets red hot!). Allow to cool slowly , wiggle a BRASS brush down inisde and scrub everything well, blow out with compressed air. More wire brush,repeat until everyting looks clean and shiney.Then dress and gap the points.

But, like I say, unless you're an impoverished student, or your plugs cost more than $5 , not worth bothering. Just buy a new set. $5 a few times a year isn't much. Even $15 for Petal I can live with.

Bear in mind , if you're using a highish tuned two smoker for transport type riding, you may need to use two (or even three) different plug types. A softish one for commuting , so it won't foul. And switch to a harder one for open road or off road. In some cases even switch plugs entering and leaving owns. A REALLY experienced two smoke rider can switch (and clean) spark plugs without stopping!