Mik's Gen 4 CRF250

Mik329 · Post by **Mik329** » July 4th, 2009, 9:47 am

I have finally started work on this thing after buying the chassis back in Nov. I'm going back and forth on how to do the frame. Order a square tube die for my bender and do the whole cradle, or do the frame like Bob's. I think I'm leaning toward Bob's design because I really want to go riding soon! I should have a decent motor by next week ( found a 98 in NJ), suspesion goes in this week for a rebuild and luckily my chassis came with the stiffer spring rates I run. Roost should have the head after I get it for the decomp and Glen will have the cylinder. Just need to round up a carb and lace a rear wheel for the wider rim I have. A little more parts gathering and I should be in biz and ready to roost some red dirt out here.

Post by **AlisoBob** » July 4th, 2009, 9:53 am

I've been saving some tubing for you!!!

PM me about your carb selection

4Z · Post by 4Z » July 4th, 2009, 10:15 am

Right on! Can't wait see this build......

Mik329 · Post by **Mik329** » July 5th, 2009, 4:55 am

AlisoBob wrote:I've been saving some tubing for you!!!

I've got the metal that you sent for your version and thanks again. I have another frame that I'm going to do the cradle on, but it looks like this one is going to be your design. I have the serious itch to get my ass in shape and go riding so I'm looking to do another 2-3 month build.

CR500R7 · Post by **CR500R7** » July 5th, 2009, 5:13 am

If you have the time, do the complete cradle as they look sweet.
The one gregrobo did looks absolutely amazing.
As it is your project you will have to make that decision.
The CRF frame definitely looks better with a CR500 engine in it thats for sure.
Bobs bike also came out great.
This build should come out good regardless of which way you decide to go.

gregrobo · Post by **gregrobo** » July 5th, 2009, 7:02 am

aw man your makin me blush

seriously the full cradle isnt that much more work if you have all the gear but hey if its done right either is good in my book.

mik if you cut the engine mounts off neat you can reuse them and you said you bought a bender all the right ingredients and bobs got the tube bargain.

has anyone on here used a tungsten tipped 5 inch cutting disc?

Mik329 · Post by **Mik329** » July 6th, 2009, 4:33 pm

Got a little more done today...

Post by **AlisoBob** » July 6th, 2009, 5:29 pm

Nice!!!!

100hp honda · Post by **100hp honda** » July 6th, 2009, 5:44 pm

looks awesome man

. but i vote you rip out the cradle and put a new one in, so you can rotate the motor more

Post by **AlisoBob** » July 6th, 2009, 5:49 pm

100hp honda wrote:... so you can rotate the motor more

Then the motor to pipe / airbox alignment is all goofed up....

CR500R7 · Post by **CR500R7** » July 7th, 2009, 1:25 am

Change one thing and you end up changing everyBLOODYthing.

Mik329 · Post by **Mik329** » July 7th, 2009, 6:04 pm

AlisoBob wrote:
100hp honda wrote:... so you can rotate the motor more
Then the motor to pipe / airbox alignment is all goofed up....

Exactly, I'm not going to create more work when I'm trying to make less. I really do not see a point in a couple more degrees anyway, not at this point in the game at least. Maybe if I was 20 years younger and still could ride like I used to, but those days are long gone.

Mik329 · Post by **Mik329** » January 31st, 2010, 1:54 pm

Finally got my ass in the Garage and got some work done. It's pretty much mocked up and ready for the welder. I still have wheels to build and a top end to send to Glen but I pretty much have enough parts for two bikes laying around. I just need to work on this damn thing more!

matt_NC · Post by **matt_NC** » January 31st, 2010, 4:13 pm

That engine jig kicks ass!!

Are you still selling them?

Or does anyone out there have one they are done with?

Mik329 · Post by **Mik329** » January 31st, 2010, 5:14 pm

matt_NC wrote:
Are you still selling them?

I have a bunch right now, check your PM for details

RideRed · Post by **RideRed** » January 31st, 2010, 5:22 pm

Looks great man!

I almost did the add-a-section to the frame as it would have been MUCH quicker and most likely easier...But I went the full rails route:

Post by **AlisoBob** » January 31st, 2010, 5:32 pm

With the amount of rocks I bash into, those soft rails would be tore the "F" up in no time. Hope you have a good skidplate lined up......

RideRed · Post by **RideRed** » January 31st, 2010, 6:13 pm

Lets not clutter up Mik329's thread, but let me tell you that my rails are not "soft". The actual differences between your 6061-T6 and my 6063-T6 are negligible. I plan to use a skidplate anyways, (as I hope you do) because I want protect my investment. Cases & frame bottoms ALWAYS should be protected by a skidplate IMO.

Post by **AlisoBob** » January 31st, 2010, 6:28 pm

If you bent them w/o annealing them, their soft. The OEM lower cradle is friggin' HARD.

RideRed · Post by **RideRed** » January 31st, 2010, 6:44 pm

Lets take this conversation over to my thread. Out of respect for Mik329 build page. I don't want to clutter his thread up with several pages of mindless banter... See you over there.

Mik329 · Post by **Mik329** » February 1st, 2010, 4:08 am

KE 336 · Post by **KE 336** » February 1st, 2010, 5:50 am

matt_NC wrote:That engine jig kicks ass!!

I'll vouche for that! Makes hand fitting your mounts much easier and also great for holding them in place for welding.

Looking real nice so far Mik!

Post by **AlisoBob** » February 1st, 2010, 5:53 am

Mik329 wrote:

CR500R7 · Post by **CR500R7** » February 3rd, 2010, 1:40 am

AlisoBob wrote:
Mik329 wrote:

Nothing has changed.

RideRed · Post by **RideRed** » February 3rd, 2010, 9:40 am

so...

BannedCR500Riders.com

Mik's Gen 4 CRF250

Mik's Gen 4 CRF250