What can I use to clean my valves with on my 400ex they are pretty bad? Also is there anything to use so i can get the buildup off my piston?
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Registered User
What can I use to clean my valves with on my 400ex they are pretty bad? Also is there anything to use so i can get the buildup off my piston?
2008 ltr-450 se
2000 400ex
2005 polaris sportsman
Registered User
pic
2008 ltr-450 se
2000 400ex
2005 polaris sportsman
Registered User
piston
2008 ltr-450 se
2000 400ex
2005 polaris sportsman
:D
Thats some serious build up.
Looks like ur jetting was rich maybe.
Was it smoking blue? Valves in spec?
How many hours on the bike aprox?
05 450r
Motowoz LT F&R / SMC +3 / Elka Pro Dual Link / RPM / Flexx / Rath / Douglas
DRG Head / Ferrea +1x4 / CP 12:1 / 05 HRC Cam / HR +3 Balanced&Welded / DRG 43.5 FCR / DASA Classic
Registered User
Im not sure how many hours are on it. I bought it used. The jetting was probably rich i never messed with the jetting. If I remember right it was blue smoke but its been a long time since i rode it. That is the reason i tore it apart is because of the smoke it smoked bad and was a pain to start and it kept fouling plugs. I havent checked the valves I just tore it apart right now and now I am going to check the valves and try to clean them up.
2008 ltr-450 se
2000 400ex
2005 polaris sportsman
426EX(WOODS WARRIOR)
That is quit a bit of carbon you got their.Id buy new valves and valve seals and also have the seats checked out and have that head cleaned up with a slight P&P.my 2 cents.
(2003)426ex,edelbrock carb,maxis razors,dirt digger clutch,ported and polished,Kibblewhite valve springs and Black Diamond valves,Omf air scoops,Renthal all diamond grips hard compound,Whitebrothers E-series pipe,Hot cam stage 1,Hot Rods crank,Wiesco 11:1 piston,HD CRF timming chain,Pro Armor front bumper,Omf skid plates, K&N air fiter,Outerwears Prefilter,LA sleeve,Longhorn atv high bend big bars,AMR monster coil,08'450r heel guards & pegs,Streamline 7 way stabilizer,450r front shocks,Primary Drive gold 520 race chain,LSR 250r axle,ss front brake lines,07 sub frame, pretty much just engine work right now, top to bottom new.Would really like to convert my 03' plastics to 08' plastics.FOR SALE!!! PM ME FOR DETAILS.THANKS
:D
AgreedOriginally posted by REDRIDDER
That is quit a bit of carbon you got their.Id buy new valves and valve seals and also have the seats checked out and have that head cleaned up with a slight P&P.my 2 cents.
BARE minimum new rings and fix the jetting.
Hows the cylinder look?
05 450r
Motowoz LT F&R / SMC +3 / Elka Pro Dual Link / RPM / Flexx / Rath / Douglas
DRG Head / Ferrea +1x4 / CP 12:1 / 05 HRC Cam / HR +3 Balanced&Welded / DRG 43.5 FCR / DASA Classic
Motionsick Motorsports
looks lean to me.....
I thot when it ran rich all the extra gas washes everything off.
anyway, I vote have have the valve guides/seals done.
400ex/ trx 450r hybrid
Registered User
I took it apart for new rings. The cylinder looks good and the piston looks good except fot that buildup. Correct me if im wrong but i believe it ran rich and thats why it looks like that. If it would have ran lean it wouldn't have buildup the rings would probably be shot and the cylinder and piston would probably have scratches.
2008 ltr-450 se
2000 400ex
2005 polaris sportsman
all of that build up raises your compression
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