TRX250r.org

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Projects / Re: My new son's R
« Last post by The norm on June 24, 2019, 11:27:57 PM »
Yeah the damn pipe cracked right under the frame mount. It's the fmf fatty that I got years ago with my R. It has cracked twice now.  Luckily I know a guy that can tig weld lol

So this guy you know that can tig weld, does he wear an ascot around his neck while he fabricates?

Could be
2
Lounge / Re: Honda's Legendary Status!
« Last post by Hawaiiysr on June 24, 2019, 03:02:50 PM »
thats cool.
3
Wanted / Re: TRX250r Rad Valve
« Last post by jcs003 on June 21, 2019, 06:08:36 PM »
Got the part.  Thanks again Josh!
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Carburetor, Intake, and Exhaust / Re: UPP Intake Boot Ripped
« Last post by Jerry Hall on June 21, 2019, 01:54:46 AM »
If you have any of the intake manifolds mentioned in my earlier post and are having detonation and or piston failures, I would run some test to determine if the manifold may be the cause. 

Running the upper vent hoses into a catch-can is another method of testing for vibration induced float bowl foaming. 

The vent line that comes out of the bottom of the float bowl on most carburetors should not be routed into the catch-can.  This vent hose is usually connected to a stand pipe that dumps fuel on the ground almost every time the brakes are applied. The fuel level in the front of the float bowl rises under hard braking.  The purpose of the stand pipe is to keep the fuel level below the pilot jet transition holes to prevent enriching the mixture or flooding the engine during braking.

The top of the catch can must be below the bottom of the float bowl.  The catch-can must be well vented.  The ends of all lines that dump into the catch-can must NEVER be allowed to be submerged in the fuel that may fill the catch can.  If the vent lines in the carburetor are pinched, partially restricted with fuel or partially filled with fuel, the float bowl chamber may not experience atmospheric pressure.  A carburetor that does not experience true atmospheric pressure at all times, can make the Air Fuel Mixture very unpredictable.

The billet manifolds in the pictures look like the style of manifolds I have had problems with.   I have also used manifolds that look like the ones in the picture and not had any problems.  I have used old hardened OEM type manifolds and Boysen type rad valves and not had problems.  Every bike has different vibration characteristics due to crankshafts that not true, loose main bearings or lose main bearing pockets, worn main bearing journals on the ends of the crank webs, improperly rebuilt counter balancers, pistons that are not the same weight as the OEM Honda piston, broken or missing cylinder head stays, loose motor mount bolts, cracked frames, after market frames (have a different resonance frequency than OEM frames), shock absorbers, tires, tire pressure....... the list goes on. 
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For Sale - Parts / Re: FS: Hiper Carbon wheels and Sand Star tires $300
« Last post by 2Nubs on June 20, 2019, 11:22:41 AM »
Bump it up.

Tires and wheels both have just a couple rides.
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For Sale - Parts / Re: FourWerx Hood
« Last post by zmoto93 on June 17, 2019, 09:14:57 PM »
Still available?
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For Sale - Parts / Re: Roll arms
« Last post by zmoto93 on June 17, 2019, 08:16:06 PM »
Still have these?
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For Sale - Parts / Re: Spare motor for sale/stock plastics/other misc items
« Last post by zmoto93 on June 17, 2019, 08:09:17 PM »
Pics of front fenders? Do you have a red set?
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Duner / Re: 2019 Winchester bay 250r meet!
« Last post by The norm on June 17, 2019, 05:16:37 PM »
Counting the days.... I canít wait to get on the plane

Joe

Good thing you already packed
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Lounge / Re: Happy Fathers Day!
« Last post by jcs003 on June 17, 2019, 05:08:34 PM »
i got an air fryer for fathers day.
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