AlisoBob's Gen 4 A/F Conversion
- AlisoBob
- "Hoon-father"
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- Location: Aliso Viejo Ca
I've beed asked how I did the cooling system... Here it is...

Due to zero tanks clearance, I removed the screw in fittings, and installed some copper elbows with "Muggy Rod"..... Basically Hi-Tech solder. I preheated the head to about 400 degrees, followed the Muggy Rod instructions, added a little heat with some map gas when needed...and it all flowed together quite nicely...

Installed with all stock Steelie hoses... No splices, no barbed fittings and hose clamps.... OEM baby!

Another view... Clears the tank, no leaks, cheap, do-able at home..... it seems like a good solution....


Due to zero tanks clearance, I removed the screw in fittings, and installed some copper elbows with "Muggy Rod"..... Basically Hi-Tech solder. I preheated the head to about 400 degrees, followed the Muggy Rod instructions, added a little heat with some map gas when needed...and it all flowed together quite nicely...

Installed with all stock Steelie hoses... No splices, no barbed fittings and hose clamps.... OEM baby!

Another view... Clears the tank, no leaks, cheap, do-able at home..... it seems like a good solution....
- sabreguy
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Looks pretty good not sure if copper looks OEM though.
I do wonder about corrosion though two different metals you know.
And what about vibration and cracking of the copper might be an issue, might not though too.
Last question whens this beat going to actually roost some dirt?
I do wonder about corrosion though two different metals you know.
And what about vibration and cracking of the copper might be an issue, might not though too.
Last question whens this beat going to actually roost some dirt?
88CR500
ROOST ON PEOPLE!!!
ROOST ON PEOPLE!!!
- britincali
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- sabreguy
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Well damn I wish I could make it out there todaybritincali wrote:sabreguy wrote: Last question whens this beat going to actually roost some dirt?
In about 3 hrs its gonna be hitting the dunes at dumont![]()
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You biotches better take some pics (for proof that it actually roosted dirt
88CR500
ROOST ON PEOPLE!!!
ROOST ON PEOPLE!!!
- iggys-amsoil
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I've read in older data sheets that it protects against 12 different metals. And won't harm your pets too.sabreguy wrote:I do wonder about corrosion though two different metals you know.
http://www.amsoil.com/storefront/ant.aspx
Trinity Racing mild porting FMF
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
http://www.prisonplanet.com
Your Amsoil Customer # 350882
62 pilot, EGH needle, 172 main
03 Gen III CR250 frame
2013 Dodger Charger 5.7 Hemi
http://www.prisonplanet.com
Your Amsoil Customer # 350882
- AlisoBob
- "Hoon-father"
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First Ride Report:
Well, trashing on the bike until 1:30 am Sat, to ride Sunday + driving 450 miles round trip for a day ride was a bit rough...... But was it worth it?
Hell YES!!!!
Comments:
1. I was shocked (
) by the near lack of vibration. Sticking close to Hondas metalurgy and assembly procedures was the key I think. The double headstay is another piece to the puzzle. I was very careful to neither spread or collapse the frame of cradle during fabrication. The motor fits well, and in a condition I call neutral. Its just sits there....

I know my motor extremely well, and can say with 100% conviction, that my A/F has less vibes than my steelie. After Brit rode it, it was the first words out of his mouth..... " God Damm, this bike is smooth... feels electric!"
2. Airbox Issues.... The stock 250X airbox has a snorkle on the top, its the only air intake the box has. On my first hillclimb, the bike totally petered out about 40% up the hill...... WTF???? Tried it 4x, same results.... Went back to camp and thought about it for a a minute or two. GOT IT!!!
Brit would have used a frickin' hatchet if one was available. Thank god we only had a prybar and Dykes. I stretched the thick plastic with the bar, while Brit snipped. The damage was kept to a minimum, and the intake area was increased 200% for a virtual 300% power increase.
To do it correctly, cut it like this...

3. How did she ride? I expected allot, but was unprepared for the results. The bike is Sheer Joy to ride. Light, nimble, suspension ( Resprung Only) is spot on, and I could have rode that thing all day. Rather than bore you with
....
Just go build one and try to wipe that shit eating grin off your face.... I dare you!
4. Odd ball stuff like my fuel tank, remote coil location, cooling system, double head stay all worked flawlessly on the maiden voyage.... The ol' odometer recorded 39.9 miles..... no " Iron Butt" ride, but no spin around the staging area either.
5. Photos? Nope... Like Brit said.... We were have WAY TOO MUCH FUN! Everyone was home watching Football, Brit and I had Dumont basically all to ourselves...
Whats next? Add a lighting coil, mod the airbox, reroute some wiring, mount my handguards...and I'm done.
As always, I'm here to answer your Gen 4 250X conversion questions.... Big thanks for all the support I got during the build, and the kind words on the completed project.
I know you guys would have called it a pile of shit if it was one, so your praise means even that much more...
Time to ride.......

Well, trashing on the bike until 1:30 am Sat, to ride Sunday + driving 450 miles round trip for a day ride was a bit rough...... But was it worth it?
Hell YES!!!!
Comments:
1. I was shocked (

I know my motor extremely well, and can say with 100% conviction, that my A/F has less vibes than my steelie. After Brit rode it, it was the first words out of his mouth..... " God Damm, this bike is smooth... feels electric!"
2. Airbox Issues.... The stock 250X airbox has a snorkle on the top, its the only air intake the box has. On my first hillclimb, the bike totally petered out about 40% up the hill...... WTF???? Tried it 4x, same results.... Went back to camp and thought about it for a a minute or two. GOT IT!!!
Brit would have used a frickin' hatchet if one was available. Thank god we only had a prybar and Dykes. I stretched the thick plastic with the bar, while Brit snipped. The damage was kept to a minimum, and the intake area was increased 200% for a virtual 300% power increase.
To do it correctly, cut it like this...

3. How did she ride? I expected allot, but was unprepared for the results. The bike is Sheer Joy to ride. Light, nimble, suspension ( Resprung Only) is spot on, and I could have rode that thing all day. Rather than bore you with
Just go build one and try to wipe that shit eating grin off your face.... I dare you!
4. Odd ball stuff like my fuel tank, remote coil location, cooling system, double head stay all worked flawlessly on the maiden voyage.... The ol' odometer recorded 39.9 miles..... no " Iron Butt" ride, but no spin around the staging area either.
5. Photos? Nope... Like Brit said.... We were have WAY TOO MUCH FUN! Everyone was home watching Football, Brit and I had Dumont basically all to ourselves...
Whats next? Add a lighting coil, mod the airbox, reroute some wiring, mount my handguards...and I'm done.
As always, I'm here to answer your Gen 4 250X conversion questions.... Big thanks for all the support I got during the build, and the kind words on the completed project.
I know you guys would have called it a pile of shit if it was one, so your praise means even that much more...
Time to ride.......
- AlisoBob
- "Hoon-father"
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Post Ride Photos:

I keep hearing all about how the CRF250's arent " Full Size" bikes? Bullshit. Brit and I measured it against his Steelie...... Same size.

"Money Shot" of how all the nonsense fits together.

When you think of quality from the UK, 3 words come to mind... Rolls Royce, Bentley, Britincali.


I keep hearing all about how the CRF250's arent " Full Size" bikes? Bullshit. Brit and I measured it against his Steelie...... Same size.

"Money Shot" of how all the nonsense fits together.

When you think of quality from the UK, 3 words come to mind... Rolls Royce, Bentley, Britincali.
- britincali
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I hate to say it and give bob praise but that bike really was bitchen, no noticable vibes at all.
I hit comp a few times on my gen1 then hit it with bobs and they are two completly different animals, mine feels like a giant 250v dildo in comparison the vibes just arent there on his, my steelie vibrates more and thats a fact.
You did a damn nice job and unlike most maiden voyages dint leave us stuck at camp all day

I hit comp a few times on my gen1 then hit it with bobs and they are two completly different animals, mine feels like a giant 250v dildo in comparison the vibes just arent there on his, my steelie vibrates more and thats a fact.
You did a damn nice job and unlike most maiden voyages dint leave us stuck at camp all day
Coolness list by 90cr500guy
Bob's = 50/50
Cepek = cool
Solidbro = cool
Brit = loser
Stoffer = 1 up from Brit
MFDB = cool
Danny = ok
Bob's = 50/50
Cepek = cool
Solidbro = cool
Brit = loser
Stoffer = 1 up from Brit
MFDB = cool
Danny = ok
-
highdezman
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- teemtrubble
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thats what i thought when i first rode my 250r, just WAY underpowered.The bike is Sheer Joy to ride. Light, nimble, suspension ( Resprung Only) is spot on, and I could have rode that thing all day.
glad to hear everything went well, makes me looking foward to getting mine done that much more.
question, where did you get the fittings that you welded onto the radiators to fit the 500 hoses?
TJ
2005 cr500af
2008 300XC/w
2005 cr500af
2008 300XC/w
- teemtrubble
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- iggys-amsoil
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"the game of life of is not so much in holding a good hand as playing a poor hand well"