need some opinions/help.

[Dan.J]

just finished putting together my bike with a stage1/FMU setup. we put .080 spacer in/adj.cam gear/A.P.E studs/cometic head gasket. adjusted cams to 105/107. set this up with S2000's, static fuel pressure set to 28/30#'s....7# spring in gate and started it with a map from a good guy thats for S2000's 10#'s. my question.........when u go to start it, it spins over very fast and then it almost sounds like the starter try's to kick back.....then when it does start its like BAM its running....it will usually do the "starter kickback type thing" a few times before it fires. once running it really doesn't idle clean even once warm but it does rev. up sorta clean. it does this wether its hot or cold. in your opinion is this a cam timing problem? a injector problem........? or something else  has anyone ran into this before? any help would be appreciated. also ofcorse the bike doesnt really build any boost on a stand but the fuel pressure gauge when ya rev it up pretty good will go from the static of 28/30# to 55/60#'s does that sound normal without any load on the motor?

[Chris Horoho]

it shouldnt raise the fuel pressure untill it makes boost
that should be a 6:1 ratio when it boosts


also check to see if the map sensor is properly plugged in

[Dan.J]

it shouldnt raise the fuel pressure untill it makes boost
that should be a 6:1 ratio when it boosts


also check to see if the map sensor is properly plugged in

whats your thoughts on the way its starting hard?

[Chris Horoho]

the map sensor isnt properly hooked up
or air pressure sensor hooked up too
vac routing is critical for a proper running bike

[Dan.J]

Pinky i dont have the boost gauge hooked up yet...i think it is building a little boost on the stand when ya rev the piss out of it but it wont make much without load correct?

[Chris Horoho]

Pinky i dont have the boost gauge hooked up yet...i think it is building a little boost on the stand whe ya rev the piss out of it but it wont make much without load correct?

only on a 2 step would it build boost
and that would only be 1-2 pounds then
and thats about it

it needs a load to boost at all

[Gsxturbo]

Did you put a check valve inline to the FMU so it dosent see boost?

[Dan.J]

Did you put a check valve inline to the FMU so it dosent see boost?

yah it has some series of check valves......not really sure why there is so many. came like that in the kit.

[Chris Horoho]

yah it has some series of check valves......not really sure why there is so many. came like that in the kit.

there should be one checkvalve so it only sees boost
you dont want it seeing vac but it needs to see boost

[sportbikeryder]

Maybe a combination of the sensors and a possible starter clutch on its way out?
Did you do anything th the ignition on the bike?
John

[OzBooster]

yah it has some series of check valves......not really sure why there is so many. came like that in the kit.

How many check valves and where do you have them fitted ?

[Chris Horoho]

it sounds as if there might be a missplacement of vac lines

[BELLBUSA]

it sounds as if there might be a missplacement of vac lines

Chris, I routed the vac lines. There is one check valve inline with the fmu, it sees boost. I have all four TB's tied into one line going to the map sensor and it is seeing vac but not boost.
 Bike turns over real good then almosts kicks back when injectors fire but it does start. Idles rough and seems to be running rich. I will probably take out the S2000's and un plug the power commander and see how it starts and idles.

[Chris Horoho]

that was my next idea
you are one of the most capable people to have helping on a bike

just putting ideas out there
my first install had a vac routing issue
that is why it made me think of it

it sounds as if there is an injector  or pc issue if vac is routed right
hope ya figure it out

[OzBooster]

There is no thumb up smiley 
Yep back to basics , make sure all is ok before making further mods

[Dan.J]

Chris, I routed the vac lines. There is one check valve inline with the fmu, it sees boost. I have all four TB's tied into one line going to the map sensor and it is seeing vac but not boost.
 Bike turns over real good then almosts kicks back when injectors fire but it does start. Idles rough and seems to be running rich. I will probably take out the S2000's and un plug the power commander and see how it starts and idles.

WOOT i figured out how to get BELLBUSA over to this site! ill be honest.....im a total noob with turbo's period! and Bryan has mostly just messed with secondary setups so we might be needing some FMU 101 before this is over but ya will get it

[kurtsbusa]

There is no thumb up smiley 
Yep back to basics , make sure all is ok before making further mods

There you go, just added 

[Dan.J]

There you go, just added 

WOOT.....Kurt on top of things!

[kurtsbusa]

WOOT.....Kurt on top of things!

I will add more smileys later tonight 

[OzBooster]

    

[Dan.J]

ok guys we figured it out. we jumped a tooth on the cams when we went to start it. i guess ya have a touch of chain slack when ya go to start it after having the tensioner and all out  so when the starter kicked back in the beginning it jumped a tooth. we good to go now......she purring like a kitten

[Chris Horoho]

glad to hear ya fixed it

[Dave.C]

+1

[HEAVYbusa]

+2   

[1BADASSBUSA]

Don't feel bad, I did same basic thing.  But I totally built a motor and install a new turbo kit and used a set of cams that someone else installed the sprokets on.  Long story short timing was off and the motor turned over like you described, I was going to say CAM TIMING when you said it turned over quickly.

I am sure PINKY remembers when this happened too me and I was freaking out.......LOL

[BLACK_DEATH]