1986 Trx250r build thread

[p61 western]

Looking good.

 

[Bigmac]

Had some other bikes to work on, but it was a beautiful day so I couldn’t resist roller outside and taking my car for a spin!

 

[Skeans1]

Have you rode a ceo cylinder?

No I haven’t, I haven’t had a R in two years last “new” cylinders I was on were the CP cylinders the Sphinx and Puma.


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[Bigmac]

No I haven’t, I haven’t had a R in two years last “new” cylinders I was on were the CP cylinders the Sphinx and Puma.


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How did you like the Sphinx? I would like to see the ceo cylinder on the Dyno just to get an idea of the power, I doubt it’s going to beat a puma, but it will be interesting to see what it dose! Most pro-x or esr 350 cc engines make 45-55

 

[Skeans1]

How did you like the Sphinx? I would like to see the ceo cylinder on the Dyno just to get an idea of the power, I doubt it’s going to beat a puma, but it will be interesting to see what it dose! Most pro-x or esr 350 cc engines make 45-55

I preferred the Sphinx over the puma but both were setup very different by the same builder. One thing I didn’t care for on the puma is intake issues, expect for a custom Robl intake I tested. From what I’ve been told they both have been redesigned to be more friendly to casual riding vs a hill shooter motor.


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[Steve]

Had some other bikes to work on, but it was a beautiful day so I couldn’t resist roller outside and taking my car for a spin!View attachment 168587View attachment 168588 View attachment 168590

You have a lot of super nice toys!

 

[Bigmac]

You have a lot of super nice toys!

Thanks Steve, lots of time, and then more time! Lol

 

[Bigmac]

I preferred the Sphinx over the puma but both were setup very different by the same builder. One thing I didn’t care for on the puma is intake issues, expect for a custom Robl intake I tested. From what I’ve been told they both have been redesigned to be more friendly to casual riding vs a hill shooter motor.


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I was considering a sphinx, but it seems like nobody is selling them, raw or otherwise, and I haven’t ever rode one, the esr cylinder is dirt cheap considering, and I am really happy with the power curve I can get out of them, they really pull from bottom to the top.

What ignition did you run?

 

[Skeans1]

I was considering a sphinx, but it seems like nobody is selling them, raw or otherwise, and I haven’t ever rode one, the esr cylinder is dirt cheap considering, and I am really happy with the power curve I can get out of them, they really pull from bottom to the top.

What ignition did you run?

The Sphinx has the stock 88 the puma had a cr. The cp cylinders can only be had from one of their dealers they end up costing a good deal more but they last longer and can produce more power.


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[Bigmac]

Didn’t get much done on the R today, had some saws and clean up to do, and I helped my neighbor wished his lift kit, but I got the clutch cover polished up

 

[p61 western]

Didn’t get much done on the R today, had some saws and clean up to do, and I helped my neighbor wished his lift kit, but I got the clutch cover polished up
View attachment 168855 View attachment 168856 View attachment 168858 View attachment 168857

Looks badazz, but the starter needs some love lol. I spy a obs in the background lol.

 

[Bigmac]

Looks badazz, but the starter needs some love lol. I spy a obs in the background lol.

That’s true, this is my backup motor, want to have it on the shelf just Incase!! I am wanting to get a set of bullet transmission gears from Led racing for the 363 but they are a few week out....so it could be a month or more! Lol I am hoping to get this 285 motor to run hard! lol

Your eye don’t deceive..96 Ford

 

[p61 western]

That’s true, this is my backup motor, want to have it on the shelf just Incase!! I am wanting to get a set of bullet transmission gears from Led racing for the 363 but they are a few week out....so it could be a month or more! Lol I am hoping to get this 285 motor to run hard! lol

Your eye don’t deceive..96 Ford

This has been a great thread. I'm glad you started it. Is the 96 yours?

 

[Bigmac]

This has been a great thread. I'm glad you started it. Is the 96 yours?

Thanks, and thanks for the prompt! I never would have started it if you hadn’t asked! Its a work truck, so it mine, my dads and brothers, we are equal owners! Lol

 

[muggy461]

Leaving the paddles on? Or will it be a track bike?

 

[Bigmac]

Leaving the paddles on? Or will it be a track bike?

Paddles, I don’t have enough talent for the track!

 

[Bigmac]

Got some more parts today

My machinist got to cylinders rough bore so I need to order pistons, and I am going to have him check the 363 cylinder with torque plate for proper clearance

Need to pull the flywheel side counter balancer bearing, going to use my blind puller, but I am also going to freeze it overnight along with the new bearing to add in removal/replacement

 

[Bigmac]

Got my new seat cover and foam! From this
To this
It was a workout!

 

[Steve]

Got my new seat cover and foam! From thisView attachment 169558
To this View attachment 169554View attachment 169555 View attachment 169556View attachment 169557
It was a workout!

Damn! That looks sharp!

 

[p61 western]

Got my new seat cover and foam! From thisView attachment 169558
To this View attachment 169554View attachment 169555 View attachment 169556View attachment 169557
It was a workout!

That looks great nice job.