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If you put a ”better”, thinner oil for the first hours the oil will slip right past the rings, and the fuel can do the same thing.
I use the Honda GN4 10w40. Like you described exactly, after .5hrs I changed the factory oil and noticed no smell. Then after my 1st track ride is when I noticed the smell. Has 2.1hrs on it when I did the 2nd oil change and saw how much fuel was mixed in the oil. Saved it in a jar just in case I have to compare for later.
Hope it’s like you said about the blurping and not being at operating temperature. I do remember being all excited starting her up and doing that a lot.
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Mine still does it, I just change the oil lots.
2024 crf450rl 1800 miles, just noticed it for first time when I did this oil change. Brought it to the shop to check that out and the scheduled 1800 mile valve adjustment. I'll let you guys know what the shop tells me.
No smell until 1800 mile change, I've changed twice since then it doesn't take long to thin out and smell strong.
I take the gas tanks off fuel injected bikes all the time and set them on the floor, they don't leak unless something is wrong. The other "valve" is the injector. The fuel pump should not flow fuel just sitting
Are you saying when they do a "valve adjustment" they are adjusting the injector?
So it should be easy to tell me if the fuel injector is the cause the same time they do the adjustment, since that's what they are working on anyways. Right?
From what I have read on multiple forums, seems like the newer bikes that are having this issue seem to be fixed by replacing the injector. Hopefully it's that easy.personally I don't think it's happening while it sits. But others say that it is. And I'm just going off what I've read I'm not a mechanic by any means.
I'll update when I get a call back from the shop.
The injector isn't adjustable; it's essentially a valve that releases pressurized fuel behind it when it receives a signal to open. It can leak if it's defective, but only whatever fuel is in the line behind it until the pressure is bled off. The injector is supplied prssurized fuel by the pump, not a gravity feed like a carbureted bike, that's why OldTech is saying the pump shouldn't flow fuel just sitting there - because it isn't being powered to come on and pump.
Might want to put this in the Tech forum for more replies.
Good luck.
Alright, that's really good to know. Learning slowly but surely. I appreciate the clarification.
Also makes sense because I changed oil and left it overnight and oil was fine until I rode it around the block.
Are you saying that you are getting fuel in the oil from just riding around the block? Is it blubbering and puffing black smoke?
Yea that's what I don't understand it's not really matching up.
3 oil changes until 1800 miles no gas in oil.
Once I changed it at 1800 I immediately smelled gas.
Changed it again and left it over night. No gas smell in the morning.
Rode the bike 2 miles down the road and the oil smelt like gas after the ride. And after another ride or two it smells strongly on the dip stick, and it's diluted. But oddly I don't notice a big change in levels. It's like it overflows and just keeps getting a higher gas to oil ratio if I don't change it. But I can't find any spots or anything left behind from my bike.
Also bike has ran just fine and really no problems. No dark smoke. Smells a little more like a 2 stroke maybe but the exhaust is clean. Might smell like gas a little more but I'm not even sure that it does really.
Runs like wrap with the stock ecu anyways, with the get sx1 it's a perfect bike - the gas in the oil.
With stock ecu runs, starts and rides like shit. But I have never really used the stock ecu at all.
P.s I had the get sx1 sent flashed for the stock exaust., and never changed anything.
That is definitely a weird one. I would recommend a leak down test to check for a possible cracked piston, it's rare but I have seen a couple over the years where the bike ran and compression was good, but was cracked almost all the way across the top. Best to find out now because it could get very expensive
Alright I will do, I won't be taking it back home until its right and if they come back with no answers I'm going to mention to them the possibilities I've read here and hopefully they figure it out. I'll let you all know.
I can't thank you guys enough for the help, makes a big difference. I appreciate it.
Not sure who's down voting my posts, or for what reason. Maybe it's the place that sold me the bike lol.
Pit Row
First thing to learn around here regarding votes, up or down: ignore them.
Apparently, there are folks on here who live just to down vote everything they come across, regardless of what it is... and there are others who down vote everything certain others post, also regardless of what it is.
The difference is the down voters aren't publicly identified so no one can ask them about it.
Once you understand the game you won't give it a second thought.
Good luck with the bike and let us know what they find - it's always interesting to learn about unusual conditions and it may help others in the future.👍
So I've done more reading and for people who claim it's only happening when it's running it seems to be a temp issue. So if the shop comes back empty, I'm going to try covering the radiators a bit because people have said that CLOSE to solved the problems but not completely. Keep in mind these are very old threads. And even older bikes.
Also hoping there's away to fix that problem within the get sx1. If that ends up being the case. Will have updates soon.
JULY 18TH
picking bike up at international motorsports, MA.
Valves were slightly out of spec and taken care of.
Gas in oil issue- They said because of the canister evap system that your oil can get that gassy smell, but my levels aren't moving and he said there was nothing wrong with it.
P.s. I sent my get sx1 out for testing to make sure that had nothing to do with it.
Listen to this wise man
Almost impossible to get a newer road legal 2 stroke thumper in MA.
or ode be on a cr too.
JULY 28TH UPDATE
-Get sx1 back in the bike.
Bike is running amazing, not sure if it was the update but
There's no delay in the start after you hit the button.
Bike starts right up cold now with no choke and no stalls.
The 2 maps are noticeably different, the tone of the bike lowers even just switching to map 2.
Gassy smell is still their but doesn't seem to be effecting anything at all. Bike is running and performing better than ever.
Can't wait to put the fmf 4.1 with megabomb header.
Thanks for the help thumpers, I appreciate it more than you knknow.
Next update won't be for a while, I'll update after exaust and super moto kit is up and running.
Hope this hhelps the op in ssome way
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