Eric, You are absolutely right. Having the needles on the last notch (highest fuel mixture) could not be right, but you see I had tried with the recommended fourth notch from Dynojet Stage 7 kit instructions with the 175 mains and I was clearly running lean. My Stage 7 has been installed following word by work the Dynojet instructions, even the airjet restrictions drilled slides and soft springs. I had second notch from top with my previous street legal modified Laser slip-ons and standard filter box, but this is not valid any longer. TBR fully open pipes and individual K&N filters want more fuel in the mixture. I'm about to try the bike out, but it is raining like hell right now. 5th notch from top seems to be a good compromise let's see when I try the bike. I have not tried the smaller 165 jets, but if right now I get white plugs with the 175. It would be against all laws to reduce the main jet. But we are here to learn and you never know where I will end up. It could be that the bike is happy enough with the standard filter and S7K small jets, but my aim right now is to see how much power I can get from a tuned standard engine. We in Spain find it difficult to find a dyno or a drag strip to test the bike and this makes it very complicated to know where you stand. I find your explanations very useful and will try them as soon as I can, but right now as I'm working all week and arrive home late at night, I only dare to make small tests before I go to sleep. I don't really know right now with the Dynojet Stage 7 how the carbs are tuned since I have the interconnecting S7K pipe, but I'm looking forward into installing the v-boost in a manual way so I can adjust carbs whenever I want. I fully agree with you that the carburetion will take a while but normally you should be able to tune it whatever pipes you have. Thank you very much and I'll keep you informed. Best Regards, Charles ( [EMAIL PROTECTED] ) ----- Original Message ----- From: Eric Harnish <[EMAIL PROTECTED]> To: Charles <[EMAIL PROTECTED]> Sent: Friday, March 24, 2000 3:45 PM Subject: Stage7 > Charles, I firmly believe that you are to rich on your needle settings. > This statement comes from installing 3 Stg 7 kits on the Vmax with > verious > exhaust systems . Your bike runs well at 6000 rpm because you are coming > onto the mains . My experience tells me that on your bike I would set > the needles at the second notch from the top and and adjust from there . > I would also think that the mains, which should be done first, should be > a DJ 165 or 170 . The best way to set the mains is 1: on a dyno 2. at > the drag strip buy looking at the trap speed . 3. color on the plug whch > is the hardest to do on the street . If done on the dyno or drag strip, > lean it one step for the street . Anouther way to test your main > settings is to > take the bike out and do a perferably 4th gear roll on from 6000 rpm and > get the feel or time it to the redline . Then take the filters and using > duct tape tape off 1/3 of the filter areas . If the bike picks up power > you are to lean . Keep doing this by droping the sizes in increments of > 5 > Exanple 175-170-165 these are DJ #'s not Mikuni . when you find the lean > jet setting then you are real close or go back up one size on two . > Example bike showes lean condition with tape on and a Dj 165 main Leave > it be or go back to DJ 170 or in between . > To set the needle use 4th gear roll ons starting at 3000 rpm to 6000 rpm > I would actually set the needles in the first position to start . do > your roll on then do it again but add a little extra fuel by using the > choke circuit , if it gets better raise the needles one notch and try > again .Do this till the addition of choke causes the engine to get soft > . Then either leave it there or I would drop them 1/2 notch . > Once you have the needles set if you have a little rich condition at > steady cruise or off idle bog only then change the air jet #2 . We have > found that DJ 185 works good there if needed . > As you can see it takes a liitle work to tune these carbs but it can be > done with whatever exhaust system you choose . I am assuming that the > float levels are correct and the carb fuel and air passages are clean > and clear. The idle mix scews are at 2 1/2 turns or more and the carbs > are in sync. There is alot more to this but this will get you into the > ball park . > Good luck > Eric ............................................. To unsubscribe go to http://www.sayegh.org/unsubscribe.htm .............................................
