| View previous topic :: View next topic |
| Author |
Message |
Brian Degulis
Joined: 13 Aug 2012
Posts: 414
Location: United States, Florida,
|
 Posted: Sun Dec 02, 2012 8:35 am Post subject: |
 |
|
Reed cage on a 4 stroke engine? I'm guessing you mean here which confuses me because I would thing you'd have vacum there not a pulse.
Brian |
|
| Back to top |
|
 |
Howie Idelson
Joined: 18 Jul 2001
Posts: 1336
Location: United States, California, Pacific Palisades
|
|
| Back to top |
|
|
Chris Reinhardt
Joined: 29 Aug 2002
Posts: 2922
Location: United States, New York, Ossining
|
| Posted: Sun Dec 02, 2012 2:41 pm Post subject: |
|
|
On the CRF250, do they run a FCR Keinhin? If so what I did when I ran a stock carb on the 450's, was to swap out the needle seat for a smaller one, like a 3.20, and run the Mikuni round straight in no tee's. Worked perfect....
CR
_________________
East Coast Super Kart Series
"This is how we roll!"
www.eastcoastsuperkart.webs.com
CR2 Motorsports
"Home of Cobalt Superkarts"
www.CR2MotorSports.webs.com |
|
| Back to top |
|
|
Brian Degulis
Joined: 13 Aug 2012
Posts: 414
Location: United States, Florida,
|
| Posted: Sun Dec 02, 2012 4:25 pm Post subject: |
|
|
Doesn't the round pump have a return fitting on it? If so why cant't you run a single line to the stock carb like we do with a Dellorto?
Brian |
|
| Back to top |
|
|
paul rees
Joined: 06 May 2007
Posts: 264
|
| Posted: Mon Dec 03, 2012 9:33 am Post subject: Starting |
|
|
| Brian Degulis wrote: | Very slick but a procedure I don't want to get into right now.
What about welding a fixture into the axle bore on the engine side to accept the starter shaft? The obvious problem is that your loosing torque to the crankshaft because of the gearing but I wonder if it would work in a high gear?
17 tooth is good for 2 stroke but this is 4 stroke operating at a lower RPM with more torque I think?
Where should I pick up a pulse for the fuel pump?
Brian |
Hi Brian I have done the axle start deal . You have to left kart on to 4x4 piece of wood for starting . Things tend to get a bit bizzze while trying to get off the grid. while doing this start. Much safer for your pit crew on start up's with plug in type of deal . Axel start is almost the same but for the 4x4 wood . If your driver stalls your scrambling with chunk of wood and starter . Cover Mod is in the $220 price range . |
|
| Back to top |
|
|
Howie Idelson
Joined: 18 Jul 2001
Posts: 1336
Location: United States, California, Pacific Palisades
|
|
| Back to top |
|
|
Roger Miller
Site Admin
Joined: 19 Jul 2001
Posts: 2917
Location: United States, California, San Jose
|
| Posted: Mon Dec 03, 2012 10:21 am Post subject: |
|
|
| Brian Degulis wrote: | Reed cage on a 4 stroke engine? I'm guessing you mean here which confuses me because I would thing you'd have vacum there not a pulse.
Brian |
Don't get hung up on pulses versus the presence of vacuum, what you care about is the pump diaphragm moving. Vacuum/Release cycles will do the job the same as Pressure/Release cycles. |
|
| Back to top |
|
|
Brian Degulis
Joined: 13 Aug 2012
Posts: 414
Location: United States, Florida,
|
| Posted: Mon Dec 03, 2012 8:45 pm Post subject: |
|
|
Thanks for the info guys. I picked up the engine and I'm preping the frame to recieve it. I'll post some pics shortly.
Brian |
|
| Back to top |
|
|
Howie Idelson
Joined: 18 Jul 2001
Posts: 1336
Location: United States, California, Pacific Palisades
|
|
| Back to top |
|
|
Brian Degulis
Joined: 13 Aug 2012
Posts: 414
Location: United States, Florida,
|
| Posted: Tue Dec 04, 2012 5:09 am Post subject: |
|
|
Howie looking at your pics I'm not understanding how you got the clearance between the engine and the seat. The only way I can get the room is to off center the engine on the frame rails and move the axle sprocket in between the cassetes. Is your seat shifted further over than normal?
Brian |
|
| Back to top |
|
|
Tim Pappas
Joined: 25 Jul 2001
Posts: 791
Location: Burkina Faso,
|
| Posted: Tue Dec 04, 2012 5:33 am Post subject: |
|
|
| Brian Degulis wrote: | Howie looking at your pics I'm not understanding how you got the clearance between the engine and the seat. The only way I can get the room is to off center the engine on the frame rails and move the axle sprocket in between the cassetes. Is your seat shifted further over than normal?
Brian |
Most the seat to the left. You don't want to hang the engine that far off to the right. |
|
| Back to top |
|
|
Howie Idelson
Joined: 18 Jul 2001
Posts: 1336
Location: United States, California, Pacific Palisades
|
| Posted: Tue Dec 04, 2012 10:22 am Post subject: |
|
|
The seat on mine is in the standard position. You can move yours over by bending the seat mounts a bit. The motor is only slightly wider then the cr and only because of the oil filter.
_________________
Howie Idelson
howieidelson@mac.com
www.coroflot.com/howieidelson |
|
| Back to top |
|
|
paul rees
Joined: 06 May 2007
Posts: 264
|
| Posted: Tue Dec 04, 2012 10:34 am Post subject: CRF |
|
|
| The CRF is a very easy engine to mount. ToykoMod's and QRC both sell motor mounts. Howie's Kart was my inspiration for building my Kart. Never had some much fun Karting. |
|
| Back to top |
|
|
paul rees
Joined: 06 May 2007
Posts: 264
|
| Posted: Tue Dec 04, 2012 10:40 am Post subject: Engine |
|
|
| I run a Oil Cooler Adapter that bolts in place of the oil filter cover . And is a bit higher the the standard oil filter cover. I All so noticed that there is no safety wire on Oil Fill Cap on the CRF450 Engine . Is that not a requirement for tarmac racing? . |
|
| Back to top |
|
|
Enzo Iadevaia
Joined: 14 Aug 2006
Posts: 198
Location: United States, New York, Long Island
|
| Posted: Tue Dec 04, 2012 11:39 am Post subject: Re: STARTING |
|
|
| paul rees wrote: | | Chris Reinhardt <<< Chris I am glad your company can do these types of Mod's . But it would be nice if in the future, that you not use a photo of my engine and frame in your show in tell's . And claim as examples of your work. My Clutch cover was not Mod'd by your company . But it was done by Flat Track Engine Machine Shop Specialist. This cover type of work was done for me at a big discount. Because he was interested in my project. And no that is not a cut down socket in the photo ether. Paul |
I just love people who try to take credit from other people's work..
Happens to me all the time so I know the feeling..  |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Login to check your private messages
Login
[/img]
[/img]