Page 2 of 3
Posted: January 4th, 2012, 8:48 am
by scooter5002
Roostius_Maximus wrote:I didn't get to this thread yet Clyde, It was actually .055"
Having come from ancestors of Scotland and England I was waiting for someone with an Inuit background to chime in
Righteous bloodlines, dude! I can see you and I are going to get along well. ROBERT THE BRUCE LIVES FOREVER!!!!!!
Posted: January 4th, 2012, 8:56 am
by Doppler
Cant you guys bitch away at each other in a PM?
Posted: January 4th, 2012, 9:14 am
by Roostius_Maximus
heck one branch of the family came to Canada from England deported by the king for having physically kicked the prince's ass. Story goes that the king agreed it needed to happen
Posted: January 4th, 2012, 9:48 am
by AlisoBob
scooter5002 wrote:So what's the problem with the HOOKERS, Bob?
Their male....
Posted: January 4th, 2012, 4:42 pm
by 100hp honda
to this day i never seen anyone do a crf250 conversion and put the engine straight up and down except bobski
. fine piece of engineering ya got there
Posted: January 4th, 2012, 5:30 pm
by gregrobo
wow another epic thread
Posted: January 4th, 2012, 6:10 pm
by AlisoBob
100hp honda wrote:.... fine piece of engineering ya got there
Yup... sure is.
1. Exhaust fits perfect
2. Chain slider isnt wearing all funky
3. Countershaft sprocket is in the same place as the 4 stroke
4. Clutch cover script is level, like it was in the steely.
WTF have you ever built Clyde??? Oh yea... nothin.
Your so stupid, it hurts...
Posted: January 4th, 2012, 6:56 pm
by Doppler
Please go jack some other thread. This isn't helping me with the things I have asked.
Posted: January 4th, 2012, 7:00 pm
by AlisoBob
You got your answer.... run it.
Posted: January 4th, 2012, 7:12 pm
by Doppler
Yes I did get THAT answer about the crank....
That wasn't the only thing I asked.
I really need to know what machine work needs to be done for the 91mm piston. Obviously bore the cylinder.
What about the head? Some say it needs to match the bore and others say it doesn't. Can't get a clear answer on that.
What needs to be done on the exhaust bridge? I see some people relieve it some?
What about port timing with the bigger bore? Does it really move it?
How about porting?
Who should I have do my machine work? Someone who doesn't break the bank would be nice. There are people local, but they know nothing specific about CR5s let alone 91mm info.
I only ask for info. on the 91mm size because I've read it takes a little more to make it work.
But again.....no clear answers from things I've read.
Posted: January 4th, 2012, 8:12 pm
by AlisoBob
Doppler wrote:I really need to know what machine work needs to be done for the 91mm piston. Obviously bore the cylinder.
Do you really need to go to 91MM?
What about the head? Some say it needs to match the bore and others say it doesn't. Can't get a clear answer on that.
Of course it does, if you want it done correctly
What needs to be done on the exhaust bridge? I see some people relieve it some?
It ALWAYS needs to be releived
What about port timing with the bigger bore? Does it really move it?
No
How about porting?
I've met 4 people who ride a CR500 WFO. I doubt your #5.
Who should I have do my machine work? Someone who doesn't break the bank would be nice. There are people local, but they know nothing specific about CR5s let alone 91mm info.
Theres members here....hit them up.
I only ask for info. on the 91mm size because I've read it takes a little more to make it work.
Nope
Posted: January 4th, 2012, 8:17 pm
by Roostius_Maximus
Doppler wrote:Yes I did get THAT answer about the crank....
That wasn't the only thing I asked.
I really need to know what machine work needs to be done for the 91mm piston. Obviously bore the cylinder.
What about the head? Some say it needs to match the bore and others say it doesn't. Can't get a clear answer on that.
What needs to be done on the exhaust bridge? I see some people relieve it some?
What about port timing with the bigger bore? Does it really move it?
How about porting?
Who should I have do my machine work? Someone who doesn't break the bank would be nice. There are people local, but they know nothing specific about CR5s let alone 91mm info.
I only ask for info. on the 91mm size because I've read it takes a little more to make it work.
But again.....no clear answers from things I've read.
Nothing special to go 91mm, same stones, ball hone, boring bar whatever
The bridge needs the same relief the honda manual instructs, nothing special.
if its a wiseco piston, drill holes at the bridge like its instructions show.
port timing is not going to change, the chamfer of the port edge is probably 4 times what difference the bigger bore would do.
match the head bore so its not making a shelf, also use the wiseco/cometic gasket kit so you have a larger bore gasket.
about the porting, you can do a little work to it and screw it up, or tons of work to it and screw it up
.
You need to set a budget for the portwork and i'm certain you'll get advice on who will work on it or what can be told to help you with it.
Posted: January 5th, 2012, 3:53 am
by Tharrell
I'm with Bob on the porting.
Unless you're running dunes, it's probably a waste and will most likely take away from the fun.
A stock CR500 is more than plenty for most people.
My '92 was built before I got it and it's a handful for me.
I'm not used to having the gas cap in the crack of my ass to keep the front end down.
Maybe if I had footpegs built onto the front axle it might work.
Posted: January 5th, 2012, 5:14 am
by AlisoBob
Tharrell wrote:I'm not used to having the gas cap in the crack of my ass to keep the front end down.
I'm about 270 right now, geared up.
It amazes me at my size, how easy it is to get the front end up.
I think we've all been sitting on the cap from time to time....
Posted: January 5th, 2012, 7:16 am
by Doppler
Oh i agree its plenty fast as is (or was) especially in low to midrange on trails. The only thing it lacked was on top on high speed desert runs. Part because the close ratio 89 gears and part due to the 14/51 gearing i had. Same as stock i believe. I am going to try 15/51 after the rebuild and see how that goes. That may fix any issues i had.....hopefully. 1st gear was pretty useless most of the time anyway
Posted: January 5th, 2012, 7:20 am
by freeride588
Doppler wrote:Oh i agree its plenty fast as is (or was) especially in low to midrange on trails. The only thing it lacked was on top on high speed desert runs. Part because the close ratio 89 gears and part due to the 14/51 gearing i had. Same as stock i believe. I am going to try 15/51 after the rebuild and see how that goes. That may fix any issues i had.....hopefully. 1st gear was pretty useless most of the time anyway
I would run a 14 tooth front if you have an oring chain as it can touch the cases. Run 14-48 and you should be good that is close to 15-51
Posted: January 8th, 2012, 4:56 am
by Tharrell
I agree, first gear is kinda useless if you have the close ratio tranny.
If you port it, it will become the scary gear.
You'll be looking like this through your goggles----
Posted: January 8th, 2012, 6:58 am
by jbsleddin
Tharrell wrote:I agree, first gear is kinda useless if you have the close ratio tranny.
If you port it, it will become the scary gear.
You'll be looking like this through your goggles----
Or performing new tricks such as "climbing the chain"
Posted: January 8th, 2012, 7:55 am
by AlisoBob
Posted: January 8th, 2012, 9:13 am
by Doppler
I'll be running a non O-ring chain. Clearance should be okay with that and the 15th right?
Posted: January 8th, 2012, 9:26 am
by freeride588
Doppler wrote:I'll be running a non O-ring chain. Clearance should be okay with that and the 15th right?
Should be no problem just check it after your first ride.
Posted: January 8th, 2012, 3:24 pm
by Tharrell
jbsleddin wrote:Tharrell wrote:I agree, first gear is kinda useless if you have the close ratio tranny.
If you port it, it will become the scary gear.
You'll be looking like this through your goggles----
Or performing new tricks such as "climbing the chain"
Damn.
Didn't kiss me or buy me dinner.
Posted: January 8th, 2012, 7:11 pm
by jbsleddin
Tharrell wrote:jbsleddin wrote:Tharrell wrote:I agree, first gear is kinda useless if you have the close ratio tranny.
If you port it, it will become the scary gear.
You'll be looking like this through your goggles----
Or performing new tricks such as "climbing the chain"
Damn.
Didn't kiss me or buy me dinner.
If I remember correctly (and I'm damn sure I do) YOU were the one chasing me for my "FATTY".......
Posted: January 8th, 2012, 7:27 pm
by freeride588
I seem to remember a little FATTY chasing
Posted: January 10th, 2012, 8:16 pm
by Doppler
Here's my crank. First pic looks like the rod is grooved with the washer sucking into it, but it's just the angle of the picture.
