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Old 07-18-2014, 03:19 PM   #31
bobfab
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awesome!
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CRF250L | KTM200SX
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Old 07-18-2014, 03:29 PM   #32
J Banning OP
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Thank you
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Current rides: '04 CR500 AF supermoto, '10 KTM 300 XC-W, '02 XR100 minimoto, '09 GSX-R 600 track, '07 VFR800
Past rides: '77 Goldwing GL1000, '86 Z50R, '86 LT250R, '86 TRX250X, '90 XR600R, '92 KX250, '98 ZX-7R, '99 TM125, '99 CR500AF, '99 TM 125MX, '01 GS500E, '04 KTM 525 SMR, '05 KTM 625 SMC, '06 KTM 250 XC-W
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Old 07-19-2014, 12:15 AM   #33
pdxjim
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Rad,

I've been having a blast on my street titled supermoto 300exc.

Those extra 200cc's must be a hoot.
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Old 10-19-2014, 10:11 PM   #34
Fast1
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dream bike!

What kinda of range do you get with the 500 during street us?
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Old 10-20-2014, 01:33 PM   #35
J Banning OP
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That depends on how it's being ridden, but it's not good either way.
30 mpg if I'm riding the speed limit and no hooning. 25 mpg or less if I'm getting on it.

The stock tank is small to begin with -- 1.9 gallons -- plus it has no reserve, and I probably lost an 1/8th of a gallon of capacity pushing the bottom of the tank in to clear the spark plug and coolant lines. With all that being said I'd say that there's really only 1.25 gallons of usable fuel in the tank. If I'm street riding I carry oil with me (in a translucent Stabil container with markings) and I aim to stop for fuel every 30 miles. If I'm at the track I top off after every session.

Companies like IMS or Clarke make larger tanks, but that larger capacity comes in the sides and bottom of the tank. I assume that I'd have to do a LOT of reforming of the tank to *possibly* make it work. I have no plans to do that.
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Current rides: '04 CR500 AF supermoto, '10 KTM 300 XC-W, '02 XR100 minimoto, '09 GSX-R 600 track, '07 VFR800
Past rides: '77 Goldwing GL1000, '86 Z50R, '86 LT250R, '86 TRX250X, '90 XR600R, '92 KX250, '98 ZX-7R, '99 TM125, '99 CR500AF, '99 TM 125MX, '01 GS500E, '04 KTM 525 SMR, '05 KTM 625 SMC, '06 KTM 250 XC-W

J Banning screwed with this post 10-20-2014 at 01:45 PM
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Old 10-27-2014, 09:15 AM   #36
BikePilot
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Nice project! CR5s broke pistons a lot in stock form. All three of the ones in my family years ago broke or cracked pistons. For light dirt work a forged wiseco fixed it. I think the root cause was Honda's poor head design--you may have fixed that with the cool head. Awesome to see the bike running!
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Old 10-30-2014, 10:11 AM   #37
jar944
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Quote:
Originally Posted by BikePilot View Post
Nice project! CR5s broke pistons a lot in stock form. All three of the ones in my family years ago broke or cracked pistons. For light dirt work a forged wiseco fixed it. I think the root cause was Honda's poor head design--you may have fixed that with the cool head. Awesome to see the bike running!
I have a cracked wiseco here that proves otherwise.

Running the piston too long or with too much clearance kills the pistons. The head design isn't that bad.
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Old 11-03-2014, 05:16 PM   #38
Norty01
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Impressive work. Cutting and rewelding a frame takes skill and courage. You appear to have both.
Just how "streetable" is a modded CR 500 engine?

Lastly, what's it's wet weight?
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Old 12-15-2014, 03:58 PM   #39
J Banning OP
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Thanks for the compliments.

Regarding how streetable it is, I guess everyone has a different idea what that means. What I can tell you is that it will easily cruise at 70 mph without a problem. At WOT it'll do between 115-117 mph. However, the thin MX seat and no wind protection make extended periods on the bike tough... plus the small stock gas tank (about 1.6 gal) and having to mix fuel make fuel stops a pain in the ass. There's no reserve and if I'm hauling ass with the bike I'll only get about 25 mpg, meaning I'll want to be dam close to a gas station when the odometer hits 30. Because I ride it hard I mix my fuel/oil at 32:1, so for a full day on the bike I gotta bring a lot of oil in my backpack. I've found that a 64oz Gatorade bottle helps too, so I can always top off the gas tank. Carrying all that stuff sucks though. A different carb (Smartcarb or Pulse Injected Air Striker) could help the fuel mileage, as could a larger tank, but the larger tank usually comes at the expense of less space around the top of the motor... so I'm sure that would mean a lot of heating and reshaping to make it fit, *if* it'll fit.

With all that being said, this bike isn't as streetable as I had hoped for. It's kinda like meeting up with all your Mustang driving buddies for a Sunday drive and you're driving a track prepped Corvette with a small fuel cell. It's loud, not very comfortable, and gets shitty gas mileage... but damn, is it a rush to drive!

With that being said, I'll be keeping this bike for track days and short hooligan rides, but I'm looking for a used DR-Z400SM as a cheap & reliable "daily supermoto" (i.e.: my Mustang) for gravel roads and and longer day rides.
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Current rides: '04 CR500 AF supermoto, '10 KTM 300 XC-W, '02 XR100 minimoto, '09 GSX-R 600 track, '07 VFR800
Past rides: '77 Goldwing GL1000, '86 Z50R, '86 LT250R, '86 TRX250X, '90 XR600R, '92 KX250, '98 ZX-7R, '99 TM125, '99 CR500AF, '99 TM 125MX, '01 GS500E, '04 KTM 525 SMR, '05 KTM 625 SMC, '06 KTM 250 XC-W

J Banning screwed with this post 12-15-2014 at 04:06 PM
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Old 12-16-2014, 11:17 AM   #40
Fast1
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Just toss it on a trailer and head for a week of riding in the dunes of Glamis and you will realize that it is "king" of all bikes (which you most likely know) in that environment.

I believe there is an oversized tank available but it does impede access to the plug and most likely will require some heat/shaping to fit according to Service Honda.
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Old 12-16-2014, 05:19 PM   #41
jar944
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Banning, you could always drop in in a KTM roller. Easy carb access (you can pull the slide without rotating the carb) and change all jets with a factory 2.5g tank installed. Up to 3.2 gallon tank without interference.

Still sucks as a commuter though.
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