Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Alot of racers have used Regular off the shelf carbs......... Just another method of tuning......... I still think you should run your blackjacks!!!!!!!!!
ET 967 Tuning Thread
- Thread starter McDog
- Start date
- Location
- South Florida
They use too much fuel. I need longer ride times in surf.
Freakrider
X247
- Location
- Tampa Bay area
I believe the real reason for why is to insure equalization of fuel pressure.
- Location
- South Florida
Are the factory specs from Mikuni that varied? I would have expected each to have the same restriction value from the factory.
Freakrider
X247
- Location
- Tampa Bay area
Each cylinder can vary with pulse pressure is my understanding.
Freakrider
X247
- Location
- Tampa Bay area
On aftermarket 46's, Supertune Chucky had us drill out returns, converge the return lines into a single line with a #60 jet. Worked excellent on different cc size engines too.
- Location
- South Florida
What were screw settings for that?
- Location
- Winter Park
Hard to say off the top of my head- started with 1 on the low and 1.5 on the high- most likely turned them in anywhere from 1/8-1/4 more
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- Location
- jacksonville florida
Are you talking about power valve springs? Mine et has very lite tension springs.
- Location
- South Florida
Yes
- Location
- jacksonville florida
no, My truck is still in the shop. I'm going to ride out there. I bought a kawi 750 pipe from Greg. He is coming down to ride. I think its going to be good
Blue
Judging your cheapness
- Location
- St Cloud Florida
Every ET 967 i have built all seem to have very heavy springs and they barely open brapping on the trailer. If they open to fast you will lose low end power. My dasa 1100 open at a touch of the throttle but thats also why they pull more in mid and upper rpms.
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- Location
- jacksonville florida
I was comparing mine to the tpe. They seem to have a stronger spring.
- Location
- jacksonville florida
Dang its firing at hugo
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Yall suck in Hugo! Wish I was there
- Location
- South Florida
Do they use DASA powervalve springs?
- Location
- Winter Park
Judging by what Blue was saying I’d say probably not.
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Blue
Judging your cheapness
- Location
- St Cloud Florida
I don't think ET uses dasa power valve Springs. The power valves in my dasa 1100 will almost dance up and down when the motors idling and in the ET they don't move unless you hit the throttle really hard.
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PV springs is a point of tuning. They come based on Load and Rate. You choose a spring with the desired parameters to start and control where and how you want your poweband to change.
Most motors are delivered with middle of the road springs that compliment the given motors performance in a rage to keep most happy. But if your tuning to a specific riders preference? Then you need to adjust the PV timing to alter the performance within that range. Keep in mind, every action, will require a change elsewhere to maintain the performance criteria........ carb and exhaust / water are greatly effected.
Ski ya, Paul
Most motors are delivered with middle of the road springs that compliment the given motors performance in a rage to keep most happy. But if your tuning to a specific riders preference? Then you need to adjust the PV timing to alter the performance within that range. Keep in mind, every action, will require a change elsewhere to maintain the performance criteria........ carb and exhaust / water are greatly effected.
Ski ya, Paul