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Ups, think I just blew the engine (and the season…)

Joined Jan 2007
24 Posts | 0+
Norway
The problem started a few weeks ago. I was out on my first long ride for the season. After riding on small roads, through the city centre and then some more small roads, I decided to head back home on the freeway. After approximately one km I felt the engine dying. It was just like when you run out of fuel. I rolled off the freeway and started troubleshooting. I had approximately 1/3 tank of fuel and tried to restart the engine. It started after some kicking but died instantly. I managed to start it several times but it just died every time. The only idea at the time was that the engine did not get enough fuel. (My bike is a 99’ with most of the fuel tank on the right side of the bike. And a vacuum powered fuel pump located at the bottom of the tank, pumping fuel to the left side which feeds the carburetor.) In order to test out this theory I laid my bike down on its left side to have fuel flowing from the right side to the left side in the tank. Of course some fuel ran out of the carburetor as I did this. The engine started after a few kicks and did not stop. I actually was able to drive back home without more problems. The distance from where I had this stop to my house is around 35 km. From my understanding I thought that it might not be enough fuel on the left side of the tank to support this ride so therefore I more or less went away from this theory. The next idea was that it might be a problem with the carburetor. The bike had not been started for several months and maybe something was stuck, jammed up. And it came loose as I laid the bike down?

The bike has been parked in my garage since this last ride and I have not had the time to look at it. But today I decided to try to figure out what the problem was. After three kicks the engine started and it ran for approximately one minute before it died. Then it would not start again. I tried the same trick but it did not work this time. Next idea was that I was out of fuel. More fuel was applied to the right side of the tank in order to still test the theory with the fuel pump. No joy. Then I decided to fill the tank almost full. Engine now started and ran. I took the bike for a little test drive up and down the street in first gear only due to the nature of the street and the surroundings. Back in my garage I gave it some throttle and reved it a couple of times. As I did this, black smoke came out of the exhaust pipe and the engine died again. When trying to kick start it again, smoke is coming out of the exhaust pipe and the engine is dead. I observed oil on the garage floor and found that it came from where the exhaust pipes are inserted into the engine head. Inspected the spark plug and found it to be oily.

So now I am afraid that this will be expensive and take some time to fix. I am not sure if I should try to fix this myself or if I should get professional help. The problem is that the only qualified Husaberg workshop is a nine hour drive from where I live. If anybody has some ideas I on any of my problems, I would be grateful. :cry: :cry:
 
sounds like piston/bore problems? it sounds like the piston picked up on the bore and then it just 'ate itself' a little?

it's so easy to take the head off the bike and take a look why don't you?

regards

Taffy
 
Hi storm
your carb might have flooded the engine and fuel washed piston rings if it where oil you would see blue smoke
you said black smoke in your post that would indicate fuel and if you are running dell orto carb there is good chance
that needle and needle jet is worn out from engine vibration, float, needle and seat,float level and dont forget that a dirty air filter could cause this problem

later VIKING
 
I just had a quick look at the bike. It started quit easy but it smokes extremely. Lots of blue smoke. And it only runs on idle. The engine dies as I turn the throttle. Also still observed oil leaking out of the engine head through the exhaust gasket where the exhaust pipes are connected to the engine. The oil level in the engine has also decreased more than its normal leakage.
 
sounds like you have piston bore problem?

It's relatively easy to remove the head and get the piston to bottom centre to take a look.

regards

Taffy
 
Problem solved. :D
After a phone call to the Norwegian Husaberg importer, I managed to fix the problem relatively quick. During the phone call I discussed both my problems and the importer was quite sure that it was not a serious problem. He was quite convinced that the engine and oil problem was a result of too much oil in the engine and with high revs, the oil pressure in the engine head gets too high. This again makes the oil to somehow flow into the carburetor and up into the airbox. Draining the carburetor was the solution. The bike started quite easily but it smoked extremely for some minutes, until all the oil in the exhaust was burned up.

The fuel problem was caused by some foreign objects in the fuel pump. After opening and cleaning the fuel pump, it works again. Tested and verified. I took the bike for a test drive this afternoon. 30 km on everything from gravel to highway without any problems. I am happy that it was so easy to fix. Only thing I now have to do is to adjust the valves. I can feel that they are not perfect anymore. :lol:
 

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