supertrap quiet series and jetting
Posted: Sun Nov 16, 2003 9:20 pm
Subject: Re: [DSN_klr650] Supertrap Quiet Series
than stock?> MMMASTERS28@... wrote: > > > Is there any way to tell if the bike is indeed been jetted differently
Turns out the bike has been jetted, but not with a K and N jet. It is the Keihin jet number 152. The idle mixture screw has been drilled out. Having been happy with the performance thus far, I left it alone. When I was installing the Supertrapp pipe getting the disc in place was a pain in the arse. My first thought was to install six disc, but one of the short screw would not make contact in the hole, hate when that happens. Ended up stripping the end of the screw. So I went with the maximum number of disc, I think 12 and the long screws. Will rethread the stripped screw tommorrow in case the pipe is too loud.> > > > > > Open up the carburetor. You can see if the pilot mixture screw has been > moved (with the carb in place) by looking with a small mirror to see if > the anti-tamper plug is removed. Otherwise you need to remove the bowl > and top cover, to see if the main jet and needle has been changed. The > stock main is a 148 Keihin jet, which is a shallow, round slotted jet. A > Dynojet would probably be a 136 or 140, and is also a slotted jet but is > longer than the stock Kawi jet and it has a deep groove around the head > that the Kawi jet doesn't (if I remember correctly). > > The numbers are totally different systems, a 136 Dynojet is about the > same as a 148 Keihin, the 140 Dynojet is similar to a 150 Keihin, the > 150 Dynojet is richer still. The Dynojet needles are longer to > accomodate the different (and adjustable) needle that comes with the > Dynojet kit.
The vaccum port had not been drilled, but I thought about drilling it. Not sure what would happen without upgrading the spring as well. What do you think? Mick A10> The vacuum port on the slide is also supposed to be drilled out with the > DJ kit.