666cody666

ok it went from the motors done to the carb needs a rebuild and now its none of those an di htink its the secondarys arent opening sometimes like wehn i am going up hills she has no power but when i let off the throttle and put it on again she puls up the hills? anyoen else have an idea? oh and what colour is the spark suppose to be from the coils cuz mines yellow.. my dad says it has to be a blue spark...

Thanks

Mr.Snakey

umm try the t-bar underneath the air filter housing, on the passenger side, near the firewall , and theres a t-bar that has to be hooked on to hooks, go check the thread about the 84 rx-7 lacking power, and look for a pic of the t-bar, this is what happend to mine at first but i hooked it back up and got my power back, this might solve your problem, hopefully

rotornoob

iTrader: (2)

it sounds like it could be your t bar or a vaccuum leak. any eratic idling or refusal to drop to normal idle when at a stop?

Kentetsu

Letting off, then getting back on it and having power is a symptom of a clogged fuel filter. When is the last time it was changed?

MosesX605

Yep, you're running into fuel flow problems, which either indicates a clogged filter, a crimped fuel line or a bad fuel pump. Change the filter and make sure all the rubber lines are in good shape. If it still loses power and then comes back then your fuel pump is probably going.

cdrad51

At which point you should do a fuel volume and pressure test and if ok, carburetor is next to tackle.

MosesX605

Took the words right outta my mouth, crad.

666cody666

the fuel filter looks new it was lady driven and i can find this thread that shows the t-bar thing?and no it idles fine

666cody666

nevermind about the t-bar thing mine is attached

bstrange99

"looks new" isn't good enough. "NEW" is the only acceptable answer here. It's a 20+ year old car, with 20+ years worth of gas, from who knows where. It doesn't take long at all to plug up the filter. I typically change mine when they still look new. You're not running autolite plugs are you?

666cody666

no ngk r

Kentetsu

The fuel filter costs about 3 bucks, and takes about ten minutes to swap out. This is a small investment, but one that should definitely be made if you don't know the age/mileage of the current filter. Would you rather rebuild your carb, only to find out that it was your filter; or change your filter and discover that your carb is fine?

666cody666

ya i should do it but i wll check it frist to see if it is cloged but i can see the secondarys not opening they dont even move then they will sometimes i think its the vaccum pump that i need new i dont know...

darkfrost

iTrader: (1)

Stock Nikki carb? Then you wont see the secondaries open. The secondaries only open under vacuum pressure when the engine is under load. You won't see it just by looking down into the carb and flooring the pedal.

Do what the other guys said and start with the fuel filter.

666cody666

i see my friend secondarys open when he gases it but only alitte..

Kentetsu

Look in the FAQ section for the mechanical secondaries instructions. Its pretty easy to do, and assures that they will open, but puts you in control (via the gas pedal) of when they open. However, chances are that yours are fine as is...

cdrad51

Well if you have access to a dyno, you can see if the secondaries open or not. Otherwise is the old trick of riding the front bumper with no hood on while a friend drives the car

MosesX605

You're going to have to trust that we know what we're talking about here.

This is a common issue. Until you do the steps outlined by Kentesu, myself and crad, you're just wasting your time.

Mazda12AGS

Do like Kentetsu said and get rid of that vacuum **** and switch it to mecanicals. Hell you can do it with a piece of wire and you never have to worry about it again. No secondary problems ever again.

666cody666

PROBLEM FIXED... fuel filter was need !!!!!

bstrange99

No ****?..................Wierd.

Mazda12AGS

Oh my god i just started laughing so hard I spit water all over the computer table.

Kentetsu

LMAO! Who'd have ever guessed? Glad you got her going again man...

cdrad51

Surprise!!!!