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Dave_B

Rusty spark plug.

9 posts in this topic

Hey guys, yesterday I decided to change the plug on my bike, seems like a lot of work to get at it though! Anyways after dropping the socket in that big hole, extension, and turning the extension with a vice grip, what a joke this is, I got the plug out fairly easily. above the threads and "washer" the plug was covered in grunge and rust. Obviously been lots of water and crap getting in there. The plug was black, am I running lean or rich? Put the new plug in, and put some grease around the plug cover to act as a water stop. Anybody else have this problem, or any suggestions to stop the water penetration would be appreciated.

Dave B

Oh yeah, the bike has only 275 miles on it.

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00 WR400

00 XR 50

01 TTR 90

Metric tools

[This message has been edited by Dave B (edited 06-03-2001).]

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Dave

there's only going to be one place that water got in & that's that tiny hole on the off side of your cylinder head. when you jet wash the bike it gets in there i should think.

Taffy

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sorry dave, i mistook you for the english Derek (i know. i don't know why either, but i'll print my mistake all the same).

on the right hand side of your head is what i should have said.

Taffy

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Thanks Taffy, I didn't know about that hole, I'll locate it and cover it next time. I've only pressure washed it twice, at a distance, because sometimes it is the only way to get this wet Canadian clay off, it's unbelievable.

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Keep in mind that dirt and water may enter the hole at any time. So, if you have acess to compressed air. Take the spark plug cap off and blow air through the "little hole" in the side of the head. This will get all the stuff you can't see and may be falling into the motor :), out of there.

Bill

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97 KDX220, 86 TTR225, 99 WR400f, WR timing, MX-Tech suspension, throttle stop trimmed, air box lid removed, White Bros head pipe, silencer and air filter. De-octopussed. Works frame guards and Thumper Rad Guards , Scotts steering damper. Odometer and headlight removed. Cycra Pro-Bend hand and mud guards. YZ stock tank, IMS seat and number plate. Renthal Jimmy Button "highs" and Renthal Soft half waffle grips. AMA, SETRA, Happy Ramblers MXC, Rausch Creek MXC, Tower City Trail Riders.

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Black plug - TOO RICH

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'99 WZ/YR (you choose!) with ALL YZ mods, de-octopused, DSP Doug Henry airbox w/ velocity stack, FMF PowerBomb header, Stroker SX-1 silencer, SS front brake line, forked over by Pro-Action (and then fixed by me), OEM YZ tank, IMS YZ seat, carb mods by Jim Dean, Andy in OZ, & Sir "Taffy" from Jolly Old England, AMA, NESC.

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First time at my plug too. Was rusty just like Dave's. What's a good way to get down in there to clean the base were the plug gasket hits. Thought I'd get a piece of rubber hose about the same diameter and put a piece of cloth on it to poke down in there.

John Hamilton

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Thought maybe I was the only one with this problem. Last two plugs I changed were like that! I just try to make sure that the plug boot is as far down as I can get it and grease up the lip. I'll see how it looks next time I pull it.

[This message has been edited by PapaSmurf (edited 06-08-2001).]

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I always squirt some water repellent in the offending hole after I wash the bike ( CRC or WD40 ) and use the small tube supplied with the can. It fits easily in the hole. After a short squirt you can see the water run out with the repellent.

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Tony Montana

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