4 posts in this topic
By Connor Wright
Hey I have a crf250x 2005 I was riding today in top gear flat out and when I slowed down blue smoke just poured out the exsaughst then I happened to open the air box lid and saw it has what looked like engine oil in it then took out air filter and noticed that there was splatters of engine oil on the inside and that and the channel that goes to the carby had engine oil all over it.
Also bike got a top end rebuild 15 hours ago
The engine still runs good and sounds normal
why would this be happening on a resonabley fresh engine
Alright guys, my 04 YZ450f runs fine minus some slight backfires when decelerating (need to adjust fuel screw). The other day when I was done checking my valve clearances I changed the oil and filter and put the bike back on the stand, kicked it a few times without the ignition coil in to get some oil flowing got off and noticed a little drip spot on the ground, it was no bigger than a dime so I thought nothing of it. Started the bike with no issues took it for a quick 10-15 min ride, came back to the garage to find out my whole case was soaked with oil and it started pooling in the low spots on the clutch basket side. I cleaned all the oil off and took it out again for 5 mins to try and see where it was coming from, here are my three possible places but nothing directly leads me to believe it’s any of the three either.
1. Decompression plug area
2. Valve cover gasket leak (not really sure because the amount of oil leaking Looks to be a large amount
3. Oil tank (bad weld or cracked weld somewhere
what are you guys thinking?
Quick question, I've got a 2016 300RR (open cartridge) and I'm putting some fresh fork oil in. (first timer) Do I need to remove the cartridge assembly to get the oil out of the cartridge as well? Or can I just pop the cap dump out the old yank the spring, fill to desired MM then toss the spring back in throw cap on and call it good? Additionally I'd like to remove some of the preload that apparently these bikes are coming with in the forks, I understand there's just one nylon washer under the cap, can this just be removed to drop the preload (forks are harsh in the top 1/3 thus the oil change to 5w and wanting to drop the preload)? Or does it need to have that washer in there so I'll need to get a thinner one / grind that one down?
Also unrelated, what do you guys do to keep your seats clean? Mines gotten really dingy and black stained from my pants. I see pics of guys betas all the time with their seats looking like their brand new (florescent red ) but no matter what I try it seems I can't get the dark staining out.
New ktm owner as of Friday- '16 xcf-w 350 w/ 13 hours. (First real dirtbike too!)
To the point- rode it about 30 minutes Sat and 15 minutes Sunday. After each ride (on the next day) several drops of oil were discovered below the engine (dripped from engine case near oil plug due to lean of bike).
Bottom of engine revealed gouges from PO riding w/out skid plate.
I think the centerline gasket may be leaking laterally to the oil plug. After cleaning well and idling bike for 10 minutes, I could feel faint oil at the gasket while everything else is dry. But I didnt feel it til an hour or so later.
Btw, There seems to be too much oil in engine- 5-10 minutes after shutting engine down, oil level was high in sightglass.
Seller said bike had just been serviced but couldnt say what all was done. He likes his toys; doesnt work on them at all.
Bike looked awesome in the dimly lit garage of seller- shouldve noticed oil level was off and the gouges under engine. Bike looked really good.
Oil leak from bash or what?
Thanks for any help,