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View Full Version : Attention tri z powervalved guys


6spdls1z28
05-04-2023, 12:58 PM
I’ve been in contact with upp about making curved intakes for the i believe 84-87 yz250 top end To keep the air filter away from the pipe. They will make them if someone can make the plates for the boot. They don’t have any that match the measurements I sent. I don’t have a way to make them if someone on here is willing to make some would help us out.


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6spdls1z28
05-07-2023, 04:11 PM
Nobody is interested in this?


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El Camexican
05-07-2023, 07:18 PM
Are you talking about the aluminum plate that is molded into the rubber?

BTW, I “think” the 84 cylinder has a straight intake.
6spdls1z28
05-07-2023, 07:21 PM
Are you talking about the aluminum plate that is molded into the rubber?

BTW, I “think” the 84 cylinder has a straight intake.

Yes I am. I couldn’t remember the starting year for the curve.


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El Camexican
05-07-2023, 07:26 PM
I just looked at some photos online. I think you’re right, 84 was curved.

That plate should be easy to make. Can it be steel instead of aluminum? I can get a few made of steel, but to do aluminum I’d need to buy a full sheet.
6spdls1z28
05-07-2023, 07:28 PM
I just looked at some photos online. I think you’re right, 84 was curved.

That plate should be easy to make. Can it be steel instead of aluminum? I can get a few made of steel, but to do aluminum I’d need to buy a full sheet.

I don’t see why steel would be a problem I have a sheet of aluminum I started making one by hand. Taking forever without special tools


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atc300r
05-08-2023, 10:21 AM
Can you post a pic of the manifold. I can't up load pics that I take with my phone on here. Is the 84-87 intake 6 bolt.I will get measurements of the Honda intake.270622
6spdls1z28
05-08-2023, 04:40 PM
Can you post a pic of the manifold. I can't up load pics that I take with my phone on here. Is the 84-87 intake 6 bolt.I will get measurements of the Honda intake.270622

https://uploads.tapatalk-cdn.com/20230508/486ce021ab0829418a12beaae567ed7e.jpg
https://uploads.tapatalk-cdn.com/20230508/e10315b0815d88fa17c7584992d8675e.jpg
This is what I sent to upp.


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