my wr eats plugs??? please help

[danny-goddard]

hi there i own a wr 426 its a 2000 w reg its had the carb mod air box lid taken off and ive put a yzf pipe on it. it runs mint and pulls really well now the mods have been done:ride: but im only getting about 8 hours out of my plugs:excuseme: ive tried differant plugs but they all last the same amount of time:censored: it really p*sses me off when i crank it up the day before im goin out for a blast (to make sure its ok) then when i go out to it the next day &%$#@! all!!!! it getting close to be sold please help me before i throw a match in the tank:foul: many thanks danny

[DGXR]

That's a real bugger... Could you elaborate on what you mean "it eats plugs"? Are they oil- or carbon-fouled? What do they look like after 8 hours? Burned, cracked, broken insulator? Color of deposits? More info please.

[danny-goddard]

hi when i say "it eats plugs" i just mean it goes through them quickly. the plugs look a little sutty but nothing major??

[face_plant]

trailering bike with fuel on?

eating plugs could be a jetting issue/ pipe

i get 1 yr+ on a plug

[danny-goddard]

i never turn the fuel off could this be the answer??

[123BigcoopDawg576]

hi when i say "it eats plugs" i just mean it goes through them quickly. the plugs look a little sutty but nothing major??

does the bike all of a sudden not run? just cuz the plug looks used doesnt mean anything is wrong with it....like others have said a 4 stroke plug will go a long long time before you need to replace it

[hillclimbguy]

This might be nothing, but check the air box for leaks past the filter. Torn boot maybe. Leak in the airbox seal.

I've gone a whole year on one plug. I just changed it because I thought it was time. As much as they cost it'll be another year before I put another one in.

[Strattos]

Could be your electrics. If you're not getting the proper spark you won't get the motor running as cleanly/completely as it should and gum up plugs. I had similar problem, although my plugs would last a bit longer than yours. I traced mine to a dodgy resister in the sparkplug cap. In the manual it tells you the reading you should be getting of the primary and secondary coil.

[wr_matt]

Dumb question... Are you replacing it with the original OEM plug? Are you sure?

Some pics would really help.

[Mark_NZ]

the plug in my 06 WR is the original - got about 95hrs on it - when should I change it?

[timoyz1]

I change my plug when I adjust my valves, just because it's there. Without seeing the plug to see if its fouled I can't say, but your word "sutty" sounds like either too rich or you're passing oil. Rich is easier to fix.

[wrtrailhog]

A buddy of mine had this same problem, he chased it for months and found out it was a leaky float needle valve. He replaced it and is on the same plug since then. Good luck.