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The "Documentation" for upgrades usually says "A possible increase of up to 12%" or "Get up to 12% hp increase"... It's all a joke. I agree with Bounty Hunter, Get the tube, you've already allowed more air to go out, so now the bottle neck is the air coming in. Upgrade the throttle body for...

vortec I have a pair off my YJ... They're grey, and might fit...

Jeep90 I was refering to the Pulse Air System. Just forgot the name of it. The entire Emmisions system in the YJ is so @ss backwards... If one little thing goes wrong, the entire setup craps out... I'm damn glad I have the Webber I no longer have to close the butterfly choke plates on the...

How's the engine? Is it a 4.0? Steering shaft? and steering box? I also need brake lines... I know where Putnam is, I'm 1.5 hours from you. Shoot me an email when you have a chance richsia@yahoo.com

starting problems, help! Jay89 Thanks for the reply. My Ignition was horrible, so I installed the Juicebox a year ago, and what an upgrade. Best 100 bucks I ever spent. Only problem that I noticed with the juicebox is that the new rotor has too much travel room in the Distributor. Jeep90...

Installed a Webber months ago If you have a Webber, what did you do with the two check valve coming from and going to the exhaust? They're the hoses that look like their going underneath the 5th and 6th Cylinders towards the Passenger side near the Battery. These originally went to the air...

I have a Webber, so would this Nutter Bypass even make a difference? I thought that with the Webber, the Stepper Motor Plug is already disconnected, so the computer is not controlling the carb anyways. Anyone out there with the same question?

Do it yourself... Runrite has a pretty damn good system for your injectors... only problem is you have to buy or borrow one of their canisters, pour their cleaner in, and run it through one of your vacuum hoses (master cylinder is the easiest... make sure to get the rpms up around 1000. Oh...

jeepin916 good advice, i'll have to do this compression test on my yj soon. it's impossible for me to keep my speed up on any small inclines, even on the highway. Not too fun when you're being chased by taxis in NYC...

Joop... I've had this happen on my 90 4.2... It could be one of two things 1: CPS -- It's the Crank Position Sensor... will also cause hard starting, or rough idle below 1000RPM 2: Clean your distributor... sometimes the stuff just gets oild up, and the rotor won't spin freely For me, it was...

Anyone ever replace their entire brake lines for a YJ? I was looking at pre-bent braided lines, but they don't have them for model years past 89. Anyone know of pre-bent kits out there? Or should I just get the pipe and bend it myself? ALSO WHAT SIZE PIPE? 1/4 1/8 ??? Any suggestions? Thanks...

Tug-n-pull I have that pen... it was given to me as a novelty gift, and frankly it looks like a little pocket rocket for the misses... I guess: IF IT AIN'T BROKE, DON'T FIX IT

Have a 90 YJ 4.2 with WEBER Carb. However, when I installed the Fuel Pressure Regulator as Redline suggests, I wasn't getting fuel pressure to the Carb. Even changed the Fuel Pump, hoses, Fuel Filter, but still no fuel pressure. So I bypassed the Regulater, stuck those hose from the filter to...

1069758 Installing a Weber Carb on my 90 YJ 4.2. NEED SOME SERIOUS HELP!!! Noticed that the EGR was never hooked up to Vacuum, so don't know if I should hook it up. However my big question is about the Vacuum Line that goes to the Brake Booster. Currently the Vacuum line is Teed off one to...

1070922 I've had the Weber 32-36 on for a few rides... Now I'm wondering whether I should have ordered the Weber 38 instead. The best bang for the buck is still the Juicebox TFI. I highly recommend it to all 258 owners. [addsig]

1071043 jeep90 -- check out driveajeep.com. It's a company called Caped Conversions... Or you can check out the How To Section on this website. It's the ignition upgrade. [addsig]

1075653 Anyone know what the heck I should do with the Pulse Air Hoses that go to the Exhaust? The guy before me that connected the Two with a T connector. Also I installed a fuel pressure regulator, but for some reason it was restricting all gas flow to the Carb, so I removed it. Rich[addsig]

1070020 Got the Weber installed!!! Funny thing is my Engine Temp Gauge now works!!! Go figure Need some help though The Idle Mixture Screw. Instructions say to turn clockwise till engine RPMs fall off, then counterclockwise till RPMs fall off again, then turn 1/2. I turned clockwise and the...

1070364 Jay89--- Thanks for the help with my earlier questions. Chinard -- About the CTO... Not only is it regulated by throttle, the engine coolant temp also regulates it. Going over my Haynes manual, it says the engine needs to be atleast 115 degrees F/and the engine at 1500 rpms for there...