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Oil cap blasting off

I have a 89 883 sportster. i recently pulled the gastank and carb to clean, as the tank had rust in it. it now runs fine,except while test riding it the oil cap shot off(obviously back pressure in the oil tank). water in gas?, timing? any suggestions? i have put "heet" in w/ the gas.

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  • reetired1 Jul 14, 2008

    2001 883 custom sportster upgaded to 1200. first 5000 miles okay and now dip stick blows out with great force. This only happens after temp is at least 150 and the bike is under a load. to keep from losing dip stick I made a cable attachment that is attached to frame so that it can't be lost. Any solutions would be greatly appreciated.



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Worn or stuck piston compression ring may also cause an increase crankcase's pressure.

Posted on Jan 15, 2008

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Your crankcase is not breathing right. Re-Check your lines going into the air filter back plate, make sure the lines are not kinked in any way. Also make sure the lines are not dry rotted.
The Rev. Kid Kev

Posted on Dec 29, 2007


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1 Answer

I have a Buell Blast, 2000 model, that has been sitting for quite a while. I cleaned the carb and made sure all passage ways were clear, but when I put it back on it will idle very roughly and if you

You need to have the bike serviced at a shop that can correctly clean the carb and empty the gastank and put fresh fuel in. Sometimes carbs get dirty in places you cannot see. Those places are the reason your bike doesn't run right.

Aug 05, 2012 | Buell Blast Motorcycles

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2000 Buell Blast runs great around town. Freeway speeds runs for 3 to 5 miles then out of nowhere dies. Acts like it's running out of fuel then dies. I have pulled the carb and cleaned the jets. C

If it starts up after sitting for a few minutes, (like 2 or 3) it could have a plugged fuel filter or the gas tank strainer built into the fuel valve could be plugged too. Drain the gastank anyway and change the gas with fresh. can't hurt. If it takes 15-30 minutes or after the bike cools some I would look at an ignition coil. Check to see if it has spark next time it quits.

Jul 05, 2012 | 2000 Buell Blast

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Changed the tank on my 2002 883 sportster now I have fuel coming out of the overflow tube ! I cleaned the carb so now what?

Hi Goodwin_bird, guess what you have to go back into your carb again to decontaminate the junk from your new tank, you may have the begining of fuel injectors or fuel filter clogging up from evil ethanol sludge and his buddies dirt, rust and water. You should also check your gas cap and fuel vent lines for proper function, also the fuel line between the pump and check valve at the bottom of the tank for pin holes. Try using a fuel stabilizer (Sta-Bil) and an injector cleaner (Rislone) to help evict unwanted tennants. For mor information on your issue please visit the websites below. Good luck and have nice day.

May 04, 2012 | 2002 Harley Davidson XL 883 R Sportster

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I have a 2001 buell blast,when i got the bike it would run until it warmed up then die,i changed the auto enrichener and solved the problem,rode it for one day and it sat over it will start and...

Your carburetor is dirty and needs to be serviced. take it to a shop to have them clean it and flush all of the bad fuel and water out of your gastank(The reason for the dirty carb).

Apr 30, 2012 | 2001 Buell Blast

1 Answer


the only thing i can suggest, is a sticky needle and seat, if fuel is coming out the over flow, then the float is not shutting off the fuel running into the carb, it has to go some where, so it comes out the overflow. Pressure in the tank wont have any affect at all with your problem. I would take apart the carby again, and check and clean the needle and seat.
Hope this helps

Jun 13, 2010 | 2000 Harley Davidson XL 1200 C Sportster...

1 Answer

My wife has a 2002 883 with about 495 miles on it, would like to get running ,but with it sitting so long there is no oil showing in side tank,no signs of oil leak and should carb. and fuel tank be...

Ok, your bike has been sitting for a while. The oil is all in the crankcase. This is a common problem with Harley's that have the tank located higher than the engine. The oil seeps past the check valve in the oil pump.

Take the spark plugs out of your engine and spin the engine with the starter. You need to be careful that you don't burn up the starter. Spin the engine for about 20-30 seconds and then let it sit for about five minutes before you do it again. Once the oil tank is back to nearly full, you can try to start the engine. Do not add any oil to the tank until you get the engine running. You must pump all the oil out of the cases first. As long as there is oil in the tank, you can safely start the engine.

But, if it's been sitting that long, you will probably have to put fresh gasoline in the tank and go thorough the carb before it's going to start. I'd take the carb off the engine and take it to a shop and have them clean (rebuild) the carb. To get the carb off, remove the air cleaner cover, filter, and backing plate. Loosen the throttle cables at the throttle grip. Loosen the large nut on the choke cable near the knob on the left side of the bike and let it swing freely. Remove the cables from the carb linkage and disconnect the fuel line. Pull the carb out of the intake manifold seal being careful not to damage the choke cable.

Installation is the reverse of what I just told you except you must be certain of the correct throttle operation prior to starting the engine. You don't want the engine starting up with the throttle wide open. Make sure it work properly.

Good Luck

Jun 03, 2010 | 2002 Harley Davidson XL Sportster 883

2 Answers

Two: 1) Oil spray at air intake. 2) Difficult shifting into 2nd

check your oil level you may have overfilled the crankcase

May 07, 2010 | 2007 Buell Blast

1 Answer

Bike not running right

First how long has she sat up before you got it. If she sat up 6 months or longer you may need to clean the carb(s). The valve you are asking about, is called a petcock, it turns the fuel off/on to the carbs. Turn it off when you leave it setting for a week or longer. If you want to leave it sit a lot longer, crank up the engine and as its running turn off the valve (gas) let her run out so the fuel (gas) does not gum up your Carb.s Now back to why she quits unless the choke is pulled out. What is happining is the choke shuts off some of the air going into the carb.s This forces the gas to be pulled in past any stoped up gumed up vents, ports what have you. So she runs but not great. You can try this. Turn off the tank valve start her up, to run her out of gas. Get your hands on a Turkey baster, some Seafoam (it is a fuel cleaner) Take the line off of the tank valve, force some Seafoam into the carbs with the baster. Let it sit over night. Start her up next day, (get her outside she will smoke up the house). Hook up your tank, put in some freash gas. Do it again if its not any better. If after 2x it does not clear up. You will have to take the carb out and phy. clean it. repost if you need help with that.

Jul 05, 2009 | 2002 Harley Davidson XL Sportster 883

3 Answers

2000 Buell Blast will not turn over

You have fuel in the tank, but is the float bowl full? Loosen the bowl drain, see if ya got gas. All the new bikes have vacuum operated fuel petcocks, and it takes forever in the spring to crank em long enough to fill the bowl. Take the line off the petcock, fill it with a small funnel with fuel, then put it back on, and fire it up.

Apr 10, 2009 | 2000 Buell Blast

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