Post by: xanthmo on June 23, 2008, 06:46:25 PM
Post by: drummerben on June 24, 2008, 07:25:59 AM
Two things to post:
1)So far, my mpg has recorded at about 55mpg. I am hoping that with some time, that will increase. As I learn how the bike handles, I can adjust my driving to optimize its mpg potential.
2) What kind of fuel do you use? I haven't been able to start the bike the past couple of days. Everything seems to check out--battery, spark plug, fuel--but I can't seem to get it to start. The starter will turn, but the engine just won't crank. A friend of mine suggested that I got bad gas. I filled it with reg. unleaded--should I be using higher grade? Are motorcycle engines, just that sensitive? The manual said 90 petrol--but I didn't know what that meant.
Any Ideas?
Post by: xanthmo on June 24, 2008, 09:44:52 AM
It sounds like you may have a fuel delivery problem, with your string of problems. I would maybe start asking for a replacement carb, and see if that smooths things out for you.
I have been using 87 octane fuel without any problems starting or accelerating.
I am really not familiar with the capacity of the tank, I will have to research this, but I have only put in one tank of fuel so far, and have rode 149 miles, as of today, and still have around half a tank left. I will post more figures as I research, and eventually have to refill.
Post by: drummerben on June 24, 2008, 12:45:57 PM
I'll let you guys know as I get results.
Post by: motorstar rider on June 24, 2008, 07:53:16 PM
If your bike doesn’t have an external fuel filter you may want to consider this, I installed an aftermarket fuel filter and add a few inches of fuel hose, just to make sure no dirt/water particles enter the carb
(http://http://i216.photobucket.com/albums/cc180/starmotor/PICT0159.jpg)
(http://http://i216.photobucket.com/albums/cc180/starmotor/PICT0165.jpg)
Post by: Myth on June 25, 2008, 07:09:15 AM
From everything I've seen it should have a 5.3 gal tank.
Post by: xanthmo on June 25, 2008, 08:59:16 AM
Post by: drummerben on June 25, 2008, 12:15:55 PM
Thanks for the advice!
Post by: drummerben on June 27, 2008, 06:04:09 PM
I had a mechanic friend look at the bike and we found that it was, of course, a carb problem. It seems that the ?float pin? was bent and would not allow gas to flow to the spark. I called Vince at Scooter Dynasty and he is sending out a new carb on Monday. I was pleasantly surprised that he didn't fight the issue (although I guess I shouldn't be surprised).
Anyway, I should be up and running in a week and a halfish. I'll let you guys know when I get going.
Post by: Brooks14 on June 29, 2008, 07:16:29 PM
Post by: gstang on July 08, 2008, 04:36:57 AM
Post by: drummerben on July 08, 2008, 02:25:22 PM
Like I said, I'm not sure if this is the correct diagnosis but it seems reasonable. Another possibility is that fuel in the float bowl can't keep up with the open accelerator for extended periods. The former theory is probably a better solution, but these are the only ones I've been offered.
Let me know if you find something else.
Post by: drummerben on July 08, 2008, 03:25:37 PM
Post by: GRob-GS250 on July 08, 2008, 06:01:48 PM
I would think that running this bike (or any 250 Bike) at 65 to 70 mph for more then just a minute or so would cause harm to the engine. When i bought mine I was told that the top speed was 65 or 70 mph, And its NOT recommended to run it that hard,(especially when new). I always knew it was a around town kinda bike and likes to be run at 45 to 55 mph, I do not believe it to be a interstate bike at all. The speed limit from my house all the way to work is 45 mph so its perfect for me. I would suggest getting a 400 at least for 65 to 70, If I remember my old 400 LTD had a top speed of 120 and it was ok to cruise it at 65 to 70 (but NOT 120), I dont think that top speed is cruising speed. Its just my thoughts...
Post by: xanthmo on July 08, 2008, 06:44:07 PM
I plan to borrow my brothers Tom Tom for a different perspective.
I still have not registered the bike either, and the old plate I had expired in June, so I am shut down until I can get over to the DMV.
Post by: drummerben on July 08, 2008, 06:54:34 PM
Post by: motorstar rider on July 09, 2008, 12:59:58 AM
Quote from: "gstang"
hi my bike is surdging real bad at higher rpms. at about 65mph to 70 it is the worst. if i rev the engine in netural you can feel and hear the surdging starting at 6000 rpms. checked fuel delivery no problem there. any body know anything about the ignition system does it have a revlimiter ect? everything else on the bike is great just one little bug.
sir try to do some 'tune-up', your carb could be running lean or rich, you could start from 1 3/4 turn from closed position of the a/f mix screw, i sometimes run my zongshen at 70mph and above (but not beyond 74) for few minutes on clear roads and no surging at all
Post by: gstang on July 09, 2008, 01:17:16 PM
Post by: drummerben on July 09, 2008, 01:24:21 PM
what exactly did you remove and how much speed are you getting?
Post by: GRob-GS250 on July 09, 2008, 10:17:17 PM
Id kinda like to know what was removed as well...
Post by: gstang on July 11, 2008, 06:55:02 PM
Post by: xanthmo on July 11, 2008, 10:56:27 PM
Do you have any pics of the mods?
Post by: drummerben on July 20, 2008, 04:20:24 PM
Just got my new carb from Scooter Dynasty (finally). I installed it, but bike still won't start. I've actually gotten it to fire a few times, but nothing that catches for more that a few seconds. Is there something I am missing with installing a new carb or am I screwed.
Post by: choylifutsoccer on July 20, 2008, 09:03:05 PM
Although I'm not too experienced with motorcycles, did you use the choke while starting it? Did you adjust all the needle settings? Is your spark plug fouled again? Is your battery still strong after it's been sitting for these few weeks? Uh..what else..oh..did you check the airbox to see if the filter element has a problem? And lastly..the most impossible of all, is the new carburetor broken too?
Post by: drummerben on July 21, 2008, 04:48:30 AM
Post by: fletc2239 on July 22, 2008, 06:45:47 AM
Post by: drummerben on July 22, 2008, 02:35:03 PM
Post by: xanthmo on July 22, 2008, 02:36:25 PM
What RPM is your bike idling at? The manual says 1400, but mine shuts off under about 1600, so I keep it a little bit higher. You can adjust the idle with the long screw on the left side of the bike (opposite side of the muffler). The screw points down from the carb and has a spring on it. If you turn it a little bit at a time, you should hear the idle speed up, and adjust it until it stays running.
Post by: xanthmo on July 22, 2008, 02:37:12 PM
Post by: drummerben on July 22, 2008, 03:10:11 PM
Post by: Myth on July 23, 2008, 07:24:12 AM
Quote from: "Brooks14"
Hi I just got a ZS250GS . I think its a great bike :D
Alright Brooks14,
Looks like your "?" went unanswered. It might behove you to open a new topic when asking a question. That way people won't overlook it for the original "?" and things might stay a little less confusing. Cool? But, by the by, my bike came with a components catalog. I don't know if anyone else has recieved this catalog, but the "Throttle Cable" is on page 29 and it's part number is 72400-M567-0000. This part number is from the Zongshen main company so you'll probably need to contact them and give them this part number to order a replacement.
Here's a link to the main page. (I think)
http://www.zongsheninternational.com/webtest/ (http://www.zongsheninternational.com/webtest/)
I hope this helps.
Post by: choylifutsoccer on July 23, 2008, 09:28:00 AM
Post by: Myth on July 23, 2008, 09:46:06 AM
Sorry for the misconception.... I stand corrected.