Picutres to help: 1. bystarter and 2. needle valve

[kwosha]

I've figured out that my starting problems (i.e. needing a wheelie to get the gas flowing) are due to the bystarter (thanks to all of your advice and past posts). Anyway, like others have said here....I took out the bystarter, put my thumb over the opening and walla, the scoot kick started on the first kick. I cleaned all the gunk off of it (there was a little, not much) and put it back in, but same problem, won't start.

I took some pictures of it....can anyone take a look and see if they can identify anything wrong with it? I'm assuming the o-ring is what's embedded in the black colored ring that seats into the carb?? It looks fine to me i.e. not worn or shreaded or anything, but maybe it's lost its seal anyway due to age? Is there another o-ring that's supposed to be there that's missing? It seems like the pin moves okay also. Bascially I'm trying to figure if I need just a new o-ring, or a new bystarter.

As for the boggyness over 12-15 mph, rather than take apart the carb (going away this weekend and don't want to start till i get back) someone suggested that my needle valve (which goes to the throttle) may not be stock, so I took a picture of it. Could someone take a look and maybe tell if mine is stock or not? The diagram of it in the service manual doesn't show a taper at the end but mine does.... not sure what to make of it.

Thanks in advance !
Kevin

FOR THE PICTURES BELOW>>>JUST RIGHT CLICK ON THE LITTLE ICON AND CLICK VIEW IMAGE

[ferchja]

Needle looks fine for the throttle, as for power loss that may be bystarter related as well, since you are not getting a good seal.

The bystarter oring is shot. The side view pic 1 shows no profile of the oring on the bottom of the bystarter, typical of compressed orings on older engines. Replace that and you will have fixed it. Otherwise the barrel and needle look good.

Take care and solve the bystarter issue then move to the bogging problem. Trust me, (have worked on small engines for 16 years) on this I went through the exact same thing as you, when I put in the new bystarter the speed was great and have had no issues in 200 miles. If bystarter is fixed and idle it perfect and doesn't solve top end then it is the main jet and or intake filter.