Don
I don't know what pipe your running or your location (altitude) and filter
(K&N?)but you should have stopped when you had it right.By trimming the air
box you in fact created a hybrid of the stage 7 without the correct jetting
including the airjet restrictors.I started with the stage 1 kit and just the
"Y" removed at sea level with a 4/1 hindle and the bike gave me fits at low
end no matter what I did with needle settings,mains,air, etc.It had a
stumble coming off of the low speed circuit."Y" on and it was fine.I have
found that the syage 7 is MUCH more sensitive to minor change because you
are on the edge all the time between good low speed,all out go like hel* at
high speed and the happy medium.The stage 1 mains at sea level are the DJ
165's or MK 157.5,needle position #2 with stock PAJ2 with the "Y"
installed.The difference with the folks that are running with "Y" removed
and or modified air box is the exhaust.Stock or slipons and you can get away
with it.Full flow baffle (header) and you
start getting into the area where a diff in temp,humidity etc. will affect
performance.I guess what I'm trying to say is that unless you have a Hindle
4/1,Kirker or equivilent system and want to (and enjoy) playing with MR.
MAX'S performance stay with the stage 1 and go back to the stock air
box.I'll send you mine (no charge) if you pay the shipping if that is what
you decide to do. Bob H
P.S. FYI > Stage 7-170 mains,175 DJ PAJ2,#2 on the needles with 2 1/2 turns
on the low speed.Also found #4's problem.The brass screw in the spark plug
cap was loose and also found corrosion on the springs in all four plug
caps.I'll post that soon with explanation and suggestions.
"The Wild Cherry Max"
http://hometown.aol.com/huberguru/thewildcherrymaxindex.html
----- Original Message -----
From: Don Seel <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Saturday, July 01, 2000 3:29 PM
Subject: Stage 1 with trimmed airbox help needed.
> I have a Dynojet stage 1 kit installed on my 97 Vmax. I found that the
best
> results I got were with the DJ 160 main jets and the needles in the #2
> position, with the Y removed. It pulled hard all the way from idle to
> redline. I couldn't leave well enough alone. I trimmed the airbox and
air
> filter as per previous posts and tech recommendations. The problem now is
> that the engine falls on it's face above 6000. I installed MK 140 into the
> PAJ 2 position and suspected that the mains were lean so I installed DJ
165
> main jets. A road test indicated that I might be going in the right
> direction, so installed DJ 170 mains. Road test was no better. Just to
> eliminate the mains, I installed MK 170 mains (equivilent to DJ 180-
> approx) , and road tested. No better. I reinstalled the DJ 165's, and
road
> tested one more time. I can't say things are any better now than when I
> started. The engine will rev to redline as long as too much throttle is
not
> applied, but will hesitate majorly if I'm too aggresive with the throttle.
> It literally falls on its' face, and surges and burbles away. I'm
wondering
> if I have to start treating this as a stage 7 install (or stage 1-7
hybrid),
> and get ahold of some air correctors (as this problem seems to be related
to
> internal airbox pressure). I am trying to get some PFJ 42.5's from the
> local Yamaha dealer, but have waited almost 2 weeks for them to come in.
> Does anyone have any experiences with this kind of problem? Will changing
> the float height correct this problem? I am considering locating another
> cover, and using it until I figure out how to make this work. I also
wonder
> if anyone has a chart indicating carb circuits vs rpm. I have the dynojet
> chart, but it only shows idle to redline. I would think a chart with rpm
> and carb circuits would be a great tuning help.
>
> Thanks for the help in advance.
>
> Don Seel
>
> .............................................
> To unsubscribe go to http://www.sayegh.org/unsubscribe.htm
> .............................................
.............................................
To unsubscribe go to http://www.sayegh.org/unsubscribe.htm
.............................................
