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Mik's Gen 4 CRF250
Posted: July 4th, 2009, 9:47 am
by Mik329
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.
Posted: July 4th, 2009, 9:53 am
by AlisoBob
I've been saving some tubing for you!!!
PM me about your carb selection
Posted: July 4th, 2009, 10:15 am
by 4Z
Right on! Can't wait see this build......
Posted: July 5th, 2009, 4:55 am
by Mik329
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.
Posted: July 5th, 2009, 5:13 am
by CR500R7
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.
Posted: July 5th, 2009, 7:02 am
by gregrobo
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?
Posted: July 6th, 2009, 4:33 pm
by Mik329
Posted: July 6th, 2009, 5:29 pm
by AlisoBob
Nice!!!!
Posted: July 6th, 2009, 5:44 pm
by 100hp honda
looks awesome man
. but i vote you rip out the cradle and put a new one in, so you can rotate the motor more
Posted: July 6th, 2009, 5:49 pm
by AlisoBob
100hp honda wrote:... so you can rotate the motor more
Then the motor to pipe / airbox alignment is all goofed up....
Posted: July 7th, 2009, 1:25 am
by CR500R7
Change one thing and you end up changing everyBLOODYthing.
Posted: July 7th, 2009, 6:04 pm
by Mik329
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.
Posted: January 31st, 2010, 1:54 pm
by Mik329
Posted: January 31st, 2010, 4:13 pm
by matt_NC
That engine jig kicks ass!!
Are you still selling them?
Or does anyone out there have one they are done with?
Posted: January 31st, 2010, 5:14 pm
by Mik329
matt_NC wrote:
Are you still selling them?
I have a bunch right now, check your PM for details
Posted: January 31st, 2010, 5:22 pm
by RideRed
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:
Posted: January 31st, 2010, 5:32 pm
by AlisoBob
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......
Posted: January 31st, 2010, 6:13 pm
by RideRed
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.
Posted: January 31st, 2010, 6:28 pm
by AlisoBob
If you bent them w/o annealing them, their soft. The OEM lower cradle is friggin' HARD.
Posted: January 31st, 2010, 6:44 pm
by RideRed
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.
Posted: February 1st, 2010, 4:08 am
by Mik329
Posted: February 1st, 2010, 5:50 am
by KE 336
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!
Posted: February 1st, 2010, 5:53 am
by AlisoBob
Posted: February 3rd, 2010, 1:40 am
by CR500R7
Posted: February 3rd, 2010, 9:40 am
by RideRed
so...
