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Now What????????More FE400 trouble.

Joined Jun 2007
24 Posts | 0+
Voss, Norway
Hi

I thought i had an electrical problem, which i probably did? (Heeelp! No spark FE400)Followed all tips from some wise men on this forum. And the thing actually started. But in a scary way, lots of smoke and oil spill from the exhaust headers. I suppose i got the valves wrong? I checked that the engine turned nicely before i tried to start it. Well, now i got a clean carb, clean connections, a functioning stator, new plug and cap. Used DalEO's tips from the forum for finding TDC, turned all in and 1/8 out. This is supposed to be right?? Maybe it's time i got a real mechanic to look at it, but will try any other tips. Does anyone know if the '94 FE 501 is an ok replacement whilw i figure this out? Can get one for the equal of $1200, with a newly rebuilt head.

uar69
 
ther tappets are meant to be 1/6th turn out.

sounds like you have a piston problem but i would still try and ride the bike for a few miles to see if it stops. if it runs well it is possibly still ok!!!

regards

Taffy
 
Ok, will look into the tappets and readjust tomorrow. The norwegian importer mentioned the possibillities of bent exhaust valves, but i'll try all other possibilities first. Is it possible for unburnt oil to pass out through the exhaust if tappets are too tight?? It's not quite the time of year for a complete rebuild:), trying too keep my hopes up. Any links for basic dellorto setup are welcome, i think it's far off and way too rich. Seems like i got it all at once, the bike has never missed a beat before.

Thanks Taffy!
 
uar69,

I have a used Fe400e motor with 150 hours on it for sale. Reconditioned the head at 100hours. Rekluse clutch fitted. Only ran Delo 400 for all its life. Lots of oil & filter changes.
Shipped to you in Norway 900 Euros. Packed by me and sent with DHL should only take 5 working days to be in your garage. I upgrade to a 2006 model and sold the rolling chassis to a friend for a project. Motor still has plenty of life and was running well when decomissioned.

Peter
 
2002/2003 Model sorry for missing that. Only used by old rider, I am 51. Trail riding only, no competition, obviously.

Peter
 
Hi

I know you do :) Got your mails from Enginehardware, sounds very interesting. Need to check with the wife tough as we're in the prosess of building a house, - on top of a mountain with miles of endurotrails!!! Norwegian imorter has all parts needed to rebuild my own engine to a FE600, but i really need a spare while working. I'll get back to you.

Uno
 
i've seen unburnt fuel dribble from the exhaust headers before. not sure why or how but could make a few wild guesses. so don't worry too much about that at this time.

regards

Taffy
 
Ordered a new rocker arm for the exhaust valves, as i overtightened one of the tappets and destroyed threads. Seems i'm learning the expensive way. Also adjusted tappets too tight first time as Taffy pointed out, will be at 1/6th when i get the new rocker arm. Not sure about possible piston problem?? Have managed to start it a couple of times since the problems started without any exessive smoke. Left it standing, followed all advice from my other thread and got my spark back + cleaned carb. Then i messed up the tappets and it all went to s**t. Turned engine carefully before starting, nothing touched inside. It would not idle yesterday either, had to give it some to keep it running. Is it possible to mess up tappets in a way that could cause the oilspills from the header and the smoke??? I think Taffy's wild guesses could make more sense than me trying to be smart, - at least i'm learning something from all this.

Uno
 
if you are learning .. thats great , in the end you will save money because you can do the work yourself and do it properly
 
Is the smoke clearing after you get it going?
How much oil are we talkng about here?
Oil can only get into the exhaust past the rings or past valve stems (or thru a great big hole in the piston but it starts so I doubt that).
Compression test will tell.
Adjustng valves wrong can't let oil into the exhaust - unless done REALLY REALLY wrong and it causes one of the items mentioned above.
It can also go thru the carb if you flip em rubber sde up. Done that recently?
 
it's unburnt petrol that has turned black due to the carbon in the exhaust port. if uno were tot tell us, he has kicked the bike over many, many times without it starting. this means the unburnt fuel sits in the port area.

that really is all it is. try not to overegg this one lads!

regards

Taffy
 
No, the smoke is constant, got it warmed up without any difference. It's spraying all over the place so not sure how much oil, a few drops on the ground after 3-4 minutes+what it takes to make all the smoke. Will try to test compression but it feels the same as always on the kicker. Will also check airbox to see if its coming ut through the vent. Just have to try again when the new rockerarm arrives. I'm a bit scared at the moment, totally wrong season for rebuilds :)
 
I'll hold on to that thought while waiting Taffy. I've been kicking it hundreds of times the last week without getting anywhere. The plug seems to be wet from petrol, not oil if that matters? It's plenty of carbon to colour the fuel as it's been running way too rich for a long time according to the old plug. Will get the carb back to standard settings, and start fresh. Take a look at all the rest of the bike and keep my fingers crossed while waiting for parts. At least it will be tidy and fresh when i get it sorted. Wonder why i didn't start using this forum when i first joined??? The tips from you guys cuold have saved me a small fortune in workshop bills, - i'll get there!!!

thanks
Uno
 
Now i have changed the rockerarm, adjusted tappets to 1/6th and i'm still kicking it like a madman. Sounds like it's almost coming around, but a little something's still missing. Is it a logical next step to change back to the SEM stator and line up the ignition marks?? Changed it for an El*****x item as i believed it could be the cause of problems, then measured SEM unit and found it to be within specs.

Uno
 
uar69 said:
Now i have changed the rockerarm, adjusted tappets to 1/6th and i'm still kicking it like a madman. Sounds like it's almost coming around, but a little something's still missing. Is it a logical next step to change back to the SEM stator and line up the ignition marks?? Changed it for an El*****x item as i believed it could be the cause of problems, then measured SEM unit and found it to be within specs.

Uno

Not trying to stick the knife in here but there has been two instnaces in the Uk with the so called Electrex stator that measured within spec but no go.

Regards

Sparks.
 
Haven't measured the Electrex, i'm talking about the original. Ordered the other one before measuring the SEM. Maybe this is good news, - have to keep positive!! I'll give it another go before leaving my Berg with someone who knows what they're doing :)
 
It started with the SEM, but needed a little twist on the gas. Still smoking and oil still dripping, guess it's time to hand it over to a proper mechanic for a rebuild?? Does anyone know where i can get a spare engine? Got an offer in this thread, but i think i would prefer something larger like a 450 ++. DCR has a reasonably priced 501, but i just need the engine.

Uno
 
well you can simply put the 100mm barrel on it and you have a 470. you would need the spigot, the piston and a larger little end bush!

have yo checked for a broken valve spring on one of the exhaust valves?

regards

Taffy
 
Before stripping everything down to find the source of the oil contamination, have you looked in the carb boot to see if there is a puddle there? If so, you may simply have an oil reed valve that's stuck open and thus blowing out of the breather. If you can't tell, remove the breather tube from the frame, bending it to one side and then take it for a ride and see what happens.

Hope this helps,
Simon
 
How do i get to the reed valve? Do i have to do a full strip of the engine? Will try to start it without breatherhose connected first thing in the morning. When i first started it after fitting the SEM stator it seemed to run quite nice. I was very eager and kicked it without fitting tank and breatherhose, just filled the carb from a bottle and ran it for about a minute. It ran very quiet with no noise from tappets, finally got those right! And no exessive smoke, only problem was it would not idle. really got my hopes up for today. Refitted hose and tank, - and it all went wrong again. I also tried to set the ignition timing according to the manual, but later on i found a thread where Taffy pointed out that the marks on the flywheel could be a bit off. Is this a common problem on 400's also? Taffy was talking about 650 in the thread i'm referring to.

Uno
 

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