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Check Engine Light Came On After Exhaust Install Cbr



The short answer is: Yes, the BoosterPlug and the O2 (Lambda) sensor will prevent the motorcycle engine from running too lean - with or without the catalytic converter in the exhaust system.As mentioned above, the O2 sensor will adjust the air/fuel ratio in closed loop mode (High RPM), so the decat will not damage your engine.But at idle, low RPM and during acceleration and engine braking, the engine will be running lean because of the increased air flow when you remove the cat. This will have a negative effect on the motorcycles rideability and is why the bike develops a terrible on/off like throttle action after a decat. You will probably also notice how the engine easily stalls at idle and take off.Open loop is mostly a low RPM thing, and at low RPM, the difference in air flow through the engine is not huge whether you have the cat installed or not - So the BoosterPlug's operational span is big enough to keep your motorcycle engine covered both with and without the catalytic converter.- The technical details on the cat removal is the same as for the previous page on aftermarket exhaust and air filters


The exhaust gases leaving the engine have a lot higher pressure than the ambient air around us, so if there is even the slightest hole between the cylinder head and the exhaust header then the fumes will escape and create quite a noise.




check engine light came on after exhaust install cbr




Ryan,I have a bobbered out 2002 Honda rebel 250cc. I took a trip to the store the other day and noticed first that my bike would not idle down at stop signs or lignts it continued to rev/high. Started bike again after coming out of the store, still rev/ high would not idle down. Made it back home with same problem. Shut bike off let sit for a few minutes and tried re-starting. The only thing that came on was the headlight. No blinkers or taillights or brake lights worked. Engine did not turn over/ no sound or click of any kind. Assumed my battery had died because the guy I bought bike from said he had never changed it. Replaced it and still nothing is happening. I do not know very much about bikes/engines etc. What do you think is the problem ? Thanks for any advice you can give me. sincerely, Lee


Just had battery checked and it was fine just needed charged. Bot a charger and hooked it up. Green light came on saying was charged so I tried starting bank. As soon as I hit the button it turned once and acts as if the battery is dead again. Any suggestions. Thanks


Hello Ryan:I own a 2012 Triumph T100. This bike has only 29 miles on it. When I bought it I thought that I would have time to ride it, however, that was not the case. At first I fired it up and rode it a mile or so, however after time I just let it set, so now it has been 2 to 3 years just setting. I decided to sell this bike, but it will not start. The battery is brand new, I replaced it and kept a battery tender on it, and the engine turns over. I can hear the fuel pump come up and see the pressure indicator go out. Also the Oil pressure light goes out when I crank it, but no start. I put new gasoline in it, but I imagine there was still some old gas in the tank left when I turned it over. I think I am in for some work trying to get this bike back in running shape. What is your take on this?


- Installing this awesome exhaust ( how other customers are calling it) will eliminate your exhaust valve as it is part of the OEM muffler, you will need to order a Servo Buddy to eliminate the check engine light to come on. A brand that we recommend can be found herewww.vizi-tec.com/duc-ee/


When Honda went to the electronically controlled sensor, they were now able to command the amount of lift, monitor the actual amount of lift and look at the MAP sensor making sure it had the expected effect on air flow. If anything unexpected happens on two trips, the check engine light will let the customer know.


4. A rider I encountered in Texas reported soot and smoke coming out of the exhaust on a regular basis. Their oil light flicks on more often than not, and when it happens, they check their dipstick and find their oil level is over a quart lower than it should be.


The DOHC cylinder head employs four valves per cylinder, 29mm intake and 24mm exhaust. These valve head diameters match those from the 954, but the stems of the new valves have been slimmed from 4.5mm to 4.0mm for lighter weight and reduced friction. This weight reduction also allows the use of lighter valve springs, for quick and precise valve actuation. Compared to the 954, included valve angles are slightly flatter (23.5 degrees vs. 25.0) to open up the combustion chamber for more efficient burning, and intake ports were raised to create a straighter path for the incoming fuel charge. The CBR1000RR features shim-under-bucket valve adjustment for high-rpm durability; engine redline is set at 11,650 rpm. To keep the engine spinning smoothly even at such elevated speeds, the RR features a light but efficient balancer shaft mounted close to the crankshaft to maximize mass centralization.


On the exhaust side of the engine, a brand-new servo-controlled system actuates a next-generation valve located within the four-into-two-into-one steel and titanium center-up exhaust system. This cable-actuated stainless steel butterfly valve resides just downstream of the collector and is operated by a servomotor that receives control signals from the central ECU. As a bonus, this new system is a whopping 770 grams lighter than the system used in the CBR954RR.


The Servo Buddy eliminates the hassle associated with removing the exhaust servo motor simplifying the process of installing an aftermarket exhaust. The Servo Buddy works by mimicking the servo motor so the computer thinks all is well with the exhaust circuit preventing the FI light from coming on due to exhaust faults while still keeping its functionality to warn you if anything else is wrong with the bike. Simply disconnecting the FI light or putting tape over it could mask potentially serious problems and lead to a damaged engine. The Servo Buddy is made to meet military or automotive standards and is engineered for all riding conditions ensuring it will work from the street to the racetrack and everywhere in between. The Servo Buddy uses OEM connectors to easily connect to your bike and weighs less than an ounce. The servo buddy also allows you to remove the bulky servo motor eliminating unnecessary weight.


The exhaust valve system is typically replaced for several reasons including the installation of an aftermarket exhaust that does not have the valve (most full systems and some slip-on exhausts), the valve or servo motor fails and needs to be replaced or removed, or the owner just wants a little more power. 2ff7e9595c


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