Question about 2001 Honda CBR 1100 XX Super blackbird
2001 blackbird only running on 2 cilinders: My hbb only runs on the 2 outer cilinders, de mid 2 exhaust pipes stay cold when engine is running. Already changed sparkplugs, coils, battery, fuel, airfilter but still no result. Engine starts but does not run idle. After short while fuel leaks from exhaust pipes below. Think it's electrical, does enyone recognize this problem? Thanks! Regards, bart
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Posted on Jan 02, 2017
SOURCE: ruuning to rich
yes definately could be a fuel regulator problem. with the tank lifted. you can see the fuel rail and toward the left you can see a diaghram style fuel regualtor. there is a small vaccum line that goes to it. take that line off and check for any signs of gas moisture. ive seen this to be a consistent problem with alot of the 929's.
Posted on Mar 26, 2009
your pilot jets may need to be replaced as your engine is using them at low & idle speeds,not sure if you can obtain them though
Posted on Jun 05, 2009
SOURCE: Fuel from engine breather pipe
There are just three ways for fuel to get into the top end. As mentioned, bad valve guides (exhaust guides are just as old as the intake guides). Bad rings with raw fuel getting past the rings. Either way, fuel is getting up there. Time for a valve job and fresh bore with new pistons and rings. If able to find the parts, I would also install new cam chain and tensioner. You have a very early CB450. Today's VIN numbers have 17 numbers. That is what didn't seem right.
Go to the site below where you can see a parts diagram for your specific bike. I already checked and a lot of parts are available for your bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx
You can also Google 'vintage motorcycle parts honda" and find stuff there.
Top rating for this answer? Thanks!
Posted on Jun 10, 2009
If the spark appears to be weak only for the two front cylinders, then I would suggest checking the electrical connections for the ignition coils.
If the spark for the other two cylinders looks the same (yellow), then I'd suggest checking the compression on the non-functioning cylinders. A compression reading of 140~160PSI is what you're looking for. Low compression indicates internal engine damage - or could be from something relatively simple - like insufficient valve tappet clearance.
If the bike has been sitting for a long period of time, it could be that the carburetors are plugged up with fuel varnish. This can cause some cylinders to not run. A complete carb disassembly and clean-out will be needed.
Posted on Oct 23, 2009
Testimonial: "thanks for that feed back . there is plenty of fuel and compression is non existant on front left and 80 psi on front right,I suspect cam wear????"
SOURCE: engine turns over but wont start
this is an older motorcycle has it run recently? If it's been sitting for over the winter the carbs may need to be cleaned . But let's say thats not it. The engine needs the three basic things to run. Spark, Fuel, and compression. Unless there's some obvios reason to skip around things should be checked in that order. Sure check to see that there's gas in the tank that's less than a year old and it's clear not fogged with rust or other junk. Make sure the battery is charged up all the way as Hondas require a good and well charged battery to run , and run right. 1 st. Spark, remove a plug wire put another plug in the end or remove the one thats in the engine put it in the end of the wire and crank it with the key on and see the plug fire.it'll need to be laying on the head. If it does'nt check the other one. They fire independatly so check em both. If you have good fire and the plugs have no junk on them ( or clean them off ) and with them out notice does anything blow out of the cyclinders as you crank it. It should make a loud woosing sond as the plug normally holds the compression no antifreeze or water shoul come out and if you block the hole with your finger or a compression gauge if should have goog pressure If you can get a gauge that fits the smaller than common ( cars) size the compression should be ewteen 150 and 175 PSI but certainly over 100 PSI. If not add a little oil to the cyclinder and crank it some and try again as the presssure may build up with oil to an acceptable lavel. I guess you've already checked the oil and coolant in the raditor just like a car it has to have everything. 2 nd. It needs to have fuel. the fuel valve needs to be on and if you remove the fuel hose ( with a rag or a pan under it ) a good steady flow of fuel needs to come out of the tank. If the fuel valve has a small hose going to one of the carbs it may have to have vacume to let the fuel move though the valve. These valves sometimes have a prime position and it'll flow anyway in that position. The valve can be clogged and not enought fuel to go though on main and may have to be switched to reserve. Once the fuel is known to come out of the tank, you should put some in a clear glass just enough to look at it good it should be clear, yellow , pink or blue, but clear not foggy. If not remove the tank dump it in you oil recycleing and put in freash fuel and or if it's nastly clean the tank and the fuel valve. after the tank is free of gas it can be cleaned with soaply water and some driveway stones, after the fuel valve is removed. You'll have the shake it alot, up side down and every other angle keep washing it out till the rinse water is clear, no flakes no nothing. If you can't seem to get into the clean part after alot of tries a nother tank or coating the inside of the tank may have to be done it's alot of work as a new tank can set you back over $400 and used ones are what you can find and the right one is important. once the tank is deliveing clean freash fuel it still may not run as this mess may be in the carbs too. on the very bottom of each carb thers a drain screw the freash cean gas needs to come out of here too. If it does and it still doesn't run your still not done. Honda's and other bikes too won't run with the aircleaners removed or poorly at best. But now that you've checked for good spark with cleaned plugs and you've got good fuel in the carbs ands you saw it puming good when the plugs were out. you still need to verify that the engine can run before you go after the carbs themselves. With the air caleaners connection removed from the carb gas shouldn't be running out and with it all put together except for the air horn put your hand or a reg over the carb end and crank the engine, it should **** on your hand and you should feel a mist of gas. If ti still doesn't start or try too and your hand is dry of gas add some gas the see if it starts for a second. if it does and quits then the carbs need cleaned.. If you get to here and you rebuild the carbs to clean them, Make sure to do the gas tank cleaning step anyway as the clean carbs will go right back to stopped up it the tank is dirty.
Posted on Jul 11, 2010
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