1968 trail 90 carb needed

The 208

The 208

Active Member
This bike ran just like it sits, but, not very well. I took the carb off and this is what I found. I'm shocked that it ran at all. But I'm trying to find a replacement carb, but the ones I find that give dimensions, they don't match this one. And also it seems that the petcock and fuel line connections are on the wrong side. The mounting bolts on this carb have been spread apart for some reason, and the manifold looks to be modified. This may not even be the OEM carb, idk. Any input is welcome.
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B

b52bombardier1

Well-Known Member
Any of the Chinese "PZ19" carbs on EBay that have the choke lever and the fuel valve on the rider's left are jetted correctly and should work well. However, these carbs are often too short from front to back and sometimes won't reach the mouth of the air cleaner. A roughly 5/8ths inch thick hockey puck rubber or 3D printed spacer between the manifold and the entry mouth of the carb works perfectly to solve this problem. I think the same spacer in metal from a Honda CL100 motor also works perfectly.

Rick
 
The 208

The 208

Active Member
Ok, thanks! I think that I'm gonna try to save this one. I had plans change for the weekend due to weather, so I'm gonna give it a try. If it doesn't work I'll have to try one of those.

b52bombardier1 said:
Any of the Chinese "PZ19" carbs on EBay that have the choke lever and the fuel valve on the rider's left are jetted correctly and should work well. However, these carbs are often too short from front to back and sometimes won't reach the mouth of the air cleaner. A roughly 5/8ths inch thick hockey puck rubber or 3D printed spacer between the manifold and the entry mouth of the carb works perfectly to solve this problem. I think the same spacer in metal from a Honda CL100 motor also works perfectly.

Rick
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The 208

The 208

Active Member
I looked into a PZ19 carb and the numbers dont work. You can the bolt spacing is different. So I'm not sure if I have the OEM carb. But, nonetheless, I'm going to try getting it cleaned up, and see how it goes.
b52bombardier1 said:
Any of the Chinese "PZ19" carbs on EBay that have the choke lever and the fuel valve on the rider's left are jetted correctly and should work well. However, these carbs are often too short from front to back and sometimes won't reach the mouth of the air cleaner. A roughly 5/8ths inch thick hockey puck rubber or 3D printed spacer between the manifold and the entry mouth of the carb works perfectly to solve this problem. I think the same spacer in metal from a Honda CL100 motor also works perfectly.

Rick
Click to expand...
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The 208

The 208

Active Member
Well, I got the thing running. It ran only slightly better than before I took the carb off. I ended up taking the needle clip from the middle groove to the top and it improved it greatly. So, the owner is going to sell this bike and I know he's gonna ask me what it' worth. I really don't know. It seems to be in pretty good shape for its age. Of course that black paint doesn't help. Headlight and tail light work. Brake light doesn't. The speedo works, it has 3800 miles on the odo. The front suspension is completely worn out. You can move the top of the front tire side to side at least an inch. LOL
So, any guesses on the value?
 
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