Kymco ZX50

[sidthesloth]

 ........the conversion is in progress........

[zombie]

Just a few km will tell.

[wordslinger]

..ya'll suck....

[thebatman]

what up guys? happened to see a reference to the petcocks.. when i was removing my carb for jetting...every time i disconnected the fuel line it would free flow till i plugged it up.. i DONT have any fuel coming thru the vaccum line either...    oh yeah, my mpg keeps going down with any mods..lmao.. really goes down with the 93 + octane boost..

[sidthesloth]

Hi batman, I don't know anything about the petcocks as I have not yet had a problem with mine, though I dare say it will come. If you can it would be worth opening it up and clean it out.
Ha, you reckon your mpg has dropped, just wait till you increase your cylinder/carb and jets. Sometimes I think the fastest part of my scoot is the fuel gauge. But then again, my fuel gauge is now my speedo. Gonna suck when my first speeding fine in fifteen years is on a scooter.

[thebatman]

yeah, im wondering how much more its gonna drop next week after squish/exhaust work..lmao..  oh well, at least im getting faster....

[sidthesloth]

I don't think that will drop you mpg, that work is more about making the engind run more efficiently, which is the first step in improving economy. Good luck, I think you will enjoy it.

[sidthesloth]

Turned spark plug around today to face into the combustion chamber and no performanceimprovement, perhaps a little slower on pickup, though only ever so slightly. Will give it a couple of days and see how it goes. I still feel there is so much more to be had from this engine that I just can't seem to get, maybe the exhaust is my hurdle..?!

[zombie]

Maybe the salvage yard you talked about has a few old pipes you could try? I think it may be worth a trip to see. Your pipe was a low rpm pipe, and I don't think we know what the jug is supposed to do. That giant exhaust port makes me think low rpm tho. Will that scoot pull the front wheel? It SHOULD. I yank just a bit on the bars to get mine. but it will hold it once up.

[sidthesloth]

Not a chance, I flipped it once and that was a concerted effort of pulling all my weight back at exactly the right time. I doubt they would have anything, just old bikes. I will try to get another exhaust but it will have to wait, have ignored everything else for too long. On a side note, the bloke to see about the scrapped Honda Lead is the Kymco dealer who went bankrupt. Word is that he is now working on an oil rig.

[wordslinger]

... he is now working on an oil rig...

..hope that works out fo 'm...

[zombie]

If I remember right your stock pipe fit the jug, so you should have no trouble fitting one, but which one? I have the Technigas rs2, and it out performs the next r on a 70cc jug kit. It may not do as well on an 80cc tho. My thought is a yx 80 pipe modified to fit the header pipe. That is a high reving expansion chamber design, and if you can find one second hand it may not hurt toooo much if it is not right. That is what I would try. The rs2 is made to run 11'000 rpm on a 70cc so it will drop some in both rpm's and power after 9'000 on an 80cc

[sidthesloth]

Damn, now you get me thinking about more ways to tinker , I have been a bit busy with the car lately, also on afternoon shift. Had to do a safety course today, started at 8:00am to 3:15pm and started work at 4:00pm. Have to finish the car tomorrow. Will look into the exhaust when I can.

[sidthesloth]

Just to revive an old thread, om my way to work this afternoon I will keep my eyes open for a lonely air filter. Yep, mine fell off on my way home last night. Am looking fora k&n filter, not easy, $32 in US + $37 postage to Aus. havd another cheapy to run with until one turns up.

[wordslinger]

... I will keep my eyes open for a lonely air filter. Yep, mine fell off on my way home last night.

..was that one of those Emco filters??

...mine dropped off too!!!