What happens when you remove the baffle on a Cobra?
Remove the baffle and you remove this feature, which helps the engine produce more power. Noise. Noise is different than sound. To us, sound is the vibration that travels through the air to someone’s ear. It can be pleasing or otherwise.
Why does my Cobra sound like a race bike?
Performance. It will suffer. It may sound like a rip-snortin’, fire-breathin’ race bike, but it will perform more like an overloaded, high-mileage rental car at altitude. This is because the exhaust system has been designed to create a bit of back pressure in order to scavenge more spent exhaust gasses from the combustion chamber.
What causes a backfiring on deceleration on a Cobra?
Backfiring on deceleration is much more common and often occurs when exhaust and fuel mixture changes are made. This is what we are going to discuss. All fuel injection systems turn off the fuel during deceleration when the throttle is fully closed, then turns the fuel back on down to idle once the engine reaches…
How many turns should idle mixture screws be?
If Idle Mixture screws are with in ½ turn of base line setting then all is well and have fun. Also check the speed screw and note how many total turns from initial contact. You may have opened (turned in) the speed screw. Your final setting should be under 2 full turns.
How do you get a brass air mixture screw out of a carb?
When it gets tight, get a pair of pliers and grab hold of the screw (vice-grips would work good here) and carefully tug on the screw. Eventually the screw with the plug attached to it will pop out. Look into the hole the plug came out of. There you will see the holy grail, the brass AIR MIXTURE SCREW! Repeat the steps above on the right side carb.
Where are the mixture screws on a rockrabbit?
Oh, and by the way, just for RockRabbit, the left side screw is for the rear cylinder (see the cylinder intake port and the boot from the left carb running down onto it?), and the right side screw is for the front cylinder (look at the intake boot, same as the left side.). UPDATE! Please see the Exhaust Mods & Mixture Screw Update.
Why are my mixture screws open on my 750?
First, it is apparent that not all the 750’s come from the factory with the mixture screws turned out to 2 1/4 turns open as the Service Manual indicates they should be. This would seem to be right in line with many owners reporting popping on decel when the bike is right off the showroom floor! Some have even found one of them closed entirely!
Can a jet kit increase the horsepower of a jet?
Jetsrus jets DO NOT use adapters which interfere with precise fuel flow. Some jet kits promise big power gains of 5% to 25% and better fuel economy on STOCK engines, can every jet kit do that? No, Jets cannot by their self increase horsepower 5% to 25% on stock engines. Jets alter the amount of fuel into the carb.
Remove the baffle and you remove this feature, which helps the engine produce more power. Noise. Noise is different than sound. To us, sound is the vibration that travels through the air to someone’s ear. It can be pleasing or otherwise.
How to fix a backfire on a Cobra?
Based on the above data, there are some simple tests you can perform to help you solve your motorcycle’s backfire issues: Once fully warmed, decelerate the engine from a high r.p.m. and listen for where the backfiring occurs. Add fuel to the cruise range, then ride the bike and see if there is a change.
Performance. It will suffer. It may sound like a rip-snortin’, fire-breathin’ race bike, but it will perform more like an overloaded, high-mileage rental car at altitude. This is because the exhaust system has been designed to create a bit of back pressure in order to scavenge more spent exhaust gasses from the combustion chamber.
Is it legal to use Cobra fuel management?
DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES. Ever tune a carburetor? Think of this product as a jet kit for fuel injected motorcycles. But a really smart jet kit. And it is much more precise than any jet could ever could be. Can I adjust it? Yes.
Can you put straight pipes in a Mustang?
Unless your Mustang is a track only pony, removing the converters will be illegal depending on what state you live in. Keep in mind what you’re building your Mustang for and where you’ll be driving it before deciding to combine a set of straight pipes with the rest of your exhaust. Straight pipes are also a lot louder.
Which is louder straight pipes or honeycomb converters?
Straight pipes are also a lot louder. Afterall you’ve removed the honeycomb of the converters. You can expect your Mustang’s sound to be throatier, but much like the varies emissions laws by state, there are also decibel level laws by state. Always check the emissions and the decibel level laws in your area before committing to straight pipes.
Which is better a factory pipe or an aftermarket pipe?
On the other hand, an aftermarket H-pipe performs far better than the restrictive stock factory mid-pipe. It will not only improve low end torque and increase horsepower, but will also help add a deep, low tone muscle car rumble to the sound of your exhaust with its classic “H” crossover pipe design.
Based on the above data, there are some simple tests you can perform to help you solve your motorcycle’s backfire issues: Once fully warmed, decelerate the engine from a high r.p.m. and listen for where the backfiring occurs. Add fuel to the cruise range, then ride the bike and see if there is a change.