Zongshen ZS250GS Engine Problems

FastDoc · 12-28-2010, 02:06 PM

Your gap is fine. I think the book says .028 so no difference.

If you put gas into the cylinder and it does not run and you have a wet sparkplug that implies that the problem is the spark not the carb. Unless it was very flooded. That's why I like the starting fluid trick. I did the EXACT same thing as you with no results. It's funny we have the same issue at the same time. It's also odd your's runs at all. Not as much as you push, uphill though.

I have a little more troubleshooting to do on mine but I basically pissed so I've been doing other things. I'll try Reveen's suggestion soon.

Is your battery fully charged? I'm trying mine off a car battery with jumper cables, no battery in the bike so that's not the issue in my case.

Maybe my NEW CDI is also bad? Hard to imagine but possible, and no way to tell.

BTW Spud is a Zong parts dealer and your best asset if you need parts.

12-28-2010, 02:06 PM	#1
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	Your gap is fine. I think the book says .028 so no difference. If you put gas into the cylinder and it does not run and you have a wet sparkplug that implies that the problem is the spark not the carb. Unless it was very flooded. That's why I like the starting fluid trick. I did the EXACT same thing as you with no results. It's funny we have the same issue at the same time. It's also odd your's runs at all. Not as much as you push, uphill though. I have a little more troubleshooting to do on mine but I basically pissed so I've been doing other things. I'll try Reveen's suggestion soon. Is your battery fully charged? I'm trying mine off a car battery with jumper cables, no battery in the bike so that's not the issue in my case. Maybe my NEW CDI is also bad? Hard to imagine but possible, and no way to tell. BTW Spud is a Zong parts dealer and your best asset if you need parts. __________________ Happy to serve.
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