TRX250r.org

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1
Wanted / 88-89 seat/pan
« Last post by 5Balls on February 04, 2023, 02:42:55 PM »
Looking for an 88-89 seat or seat pan, mostly just need the seat pan. Thanks!
2
Wanted / Re: Swingarm wanted
« Last post by The norm on February 03, 2023, 08:07:18 PM »
Anyone have anything?
3
Suspension and Chassis / Re: 23" tall front tires
« Last post by All250R on February 02, 2023, 02:12:54 PM »
Has anyone ever ran 23" front tires on a TRX250R?  I follow a Banshee guy on Instagram https://www.instagram.com/mrkayak/ who is running 23" buffed GBC MX tires.  I solely ride in dunes and would love a little more "cushion".  I run a 23" buffed mohawk on my 85 ATC so I am aware of the weight and height.  To me, the Skat Trak mohawks just look tiny at 21". Currently running a 21x10-8 rear tire and like the look of a taller front tire.

I grew up in the SW and Glamis... What psi do you run in your tires? I run 2.5-3psi in the front on 21" skat trak mohawks in the front, and 3-3.5psi Hauler's in the rear. That made a large enough difference for me to be comfortrable enough with the chop, and still keep a lower center of gravity for fast riding in the smooth.
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Wanted / Re: Douglas wheels
« Last post by 88trx on February 01, 2023, 02:05:42 PM »
pm sent
5
Engine and Bottom End / Re: Neil Clutch mod update or changes?
« Last post by All250R on January 31, 2023, 04:43:40 PM »
This modification has always had me looking at it a little funny... I did rough calculation on the CR spring vs the 88-9, and the CR spring is roughly the same rate, but shorter.I imagine the 400ex plate could be skipped, along with the thrust bearing washer if the stock 88-9 springs were used (or barnett, etc  spring) with the al washer instead of the CR springs. Neil I think used to also recommend scuffing the 400ex plate too to make it more abrasive, which isn't a great solution, so I'm not sure how much thought he put into it when he came up with this mod for his races. Either way, I suspect that increasing clamping force is more desireable than moving the pressure plate further from the basket to increase spring tension. The spring tension at a given compression level can be measured fairly easily with a drill press and a scale.
6
Engine and Bottom End / Re: Melting ground straps. Still!
« Last post by havinnoj on January 31, 2023, 11:54:57 AM »
What is the cylinder, carb, and full jet specs?  Are there any lean "spots" in the throttle position?  Maybe your quad is rich at idle, maybe it's rich on the main but lean in the middle somewhere? 
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ATC250R / Re: Cr 01 coil mount for 85 atc 250r.....
« Last post by Langbolt on January 30, 2023, 12:47:54 PM »
You've now ISOLATED the coil.......so you will have to add a grounding strap from the aluminum mount to your motor or you will not get a spark.

:)

Easy fix!
8
Engine and Bottom End / Re: Who rebuilds crank? - where to buy?
« Last post by Langbolt on January 30, 2023, 12:22:41 PM »
To Follow up with Jerry's post:

http://www.pivotworks.com/LearningResources.aspx?ItemID=734&page=1

In September of 2015, AEP partnered with The Riverside Company, a global private equity firm, as part of its recapitalization to support its future growth plans.

They've owned them for a while now......so hopefully this means they haven't stopped production of parts for our 'R's ;)

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Engine and Bottom End / Re: Build a Leak down test kit
« Last post by Langbolt on January 30, 2023, 12:04:07 PM »
Get yourself a #9 rubber expansion plug :)

Pool stores have these for winterizing

:)
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The Mad Scientist / Re: Long forgotten R parts
« Last post by croat1 on January 29, 2023, 12:33:02 PM »
Here’s the Denton shifter mentioned earlier…..

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