« previous next »
Pages: 1 2 3 4 5 6 7 8 9 10 [11] 12 13 14 15   Go Down

Author Topic: 750cc pushrod bike build  (Read 69851 times)

0 Members and 2 Guests are viewing this topic.

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #150 on: January 15, 2010, 06:29:49 PM »
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #151 on: January 18, 2010, 05:48:32 PM »
It's ALIVE !!
I have become an instant fan of EFI. This thing started easier than any carbed bike I have ever built  :cheers:
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline 1212FBGS

  • Hero Member
  • *****
  • Posts: 2532
    • http://www.motobody.com
Re: 750cc pushrod bike build
« Reply #152 on: January 18, 2010, 06:03:42 PM »
what EFI are you using randy
kent
Logged

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #153 on: January 18, 2010, 07:16:07 PM »
I'm using a stock system right now Kent, but I have a microsquirt system I would like to learn eventually.
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline RidgeRunner

  • Sr. Member
  • ****
  • Posts: 843
Re: 750cc pushrod bike build
« Reply #154 on: January 19, 2010, 11:20:42 PM »
     Like all your stuff, lookin' good!

     Noise and motion at April Maxton?

                                                    Ed

Logged

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #155 on: January 20, 2010, 12:02:34 AM »
Yep, save me a seat at that banquet table Ed, I'll be there.
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline firemanjim

  • Sr. Member
  • ****
  • Posts: 399
Re: 750cc pushrod bike build
« Reply #156 on: January 20, 2010, 01:39:49 PM »
 Randy, what year ecm? Had good luck tuning the 03-07 ones with ECM-Spy.(Got a big bore XB-9 on dyno as we speak!) You can get a cable from Al at American Sportbike.
Logged
Bonneville 2001,2002,2003,2004,and NO stinking 2005,DLRA 2006, next?
Well,sure can't complain about 2008--6 records over 200 and 5 hats from Bonneville,Bubs, and El Mirage for the team!

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #157 on: January 20, 2010, 02:43:21 PM »
My ECM is 2003. I bought an ECM-Spy cable and software about a year ago. Do you mind if I contact you if I have questions when I get into it?
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #158 on: February 13, 2010, 04:58:23 PM »
I was having problems with the temp sensor output into the ECM. I had to relocate the sensor when the second spark plug was installed in it's location. The stock Buell EFI system is known for running very rich until the rear head is up to operating temp. I had my XB12 in for service recently and the dealer told me not to ride the bike until it has reached operating temp, since this can cause the plugs to foul due to the rich condition. Sure enough, the A/F ratio was running low and my plugs were getting black. The sensor is a thermistor that changes resistance with temp rise. Rather than deal with the now inaccurate sensor output, I decided to overide it. An array of resistors was made to simulate operating temperature and the best one was picked and will be permanently installed in place of the sensor.


http://www.frsengineering.com/pp133.jpg
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #159 on: February 13, 2010, 05:00:39 PM »
This pic shows the stock narrow band O2 sensor on the top and the wide band data logginng O2 sensor on the bottom. My next task is to add an LC-1 controller to the wide band sensor so I can have 2 analog outputs; one for the ECM and one for the data logger. After that is done, I can remove the top sensor and plug the exhaust pipe.

Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline isiahstites

  • Hero Member
  • *****
  • Posts: 1152
Re: 750cc pushrod bike build
« Reply #160 on: February 13, 2010, 05:15:55 PM »
 :cheers: Nice job Randy! I am looking forward to see her run a good number this year!

Scott
Logged

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #161 on: February 13, 2010, 07:09:07 PM »
Thanks Scott, I'm hoping it will be faster than my last bike too!
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline Rchop

  • Sr. Member
  • ****
  • Posts: 605
    • FRS Engineering
Re: 750cc pushrod bike build
« Reply #162 on: February 25, 2010, 06:30:30 PM »
I'm just finishing up some things while I wait for it to get warm enough for a road test. One of the tough items was to protect the fuel pump at the bottom of the bike. I finally decided to put a brace bar alongside the pump and enclose the pump inside a stainless steel tube which is attached to the brace bar...


http://www.frsengineering.com/pp135.JPG

All the electronics are installed in an enclosed bay underneath the seat...


http://www.frsengineering.com/pp136.JPG

The tail section can now be installed...


http://www.frsengineering.com/pp138.JPG
Logged
Each unexpected discovery is first ridiculed, then objected to and finally considered self evident
www.frsengineering.com
#4836 A-PBF 750cc(complete)
#765 A/G 650cc

Offline Geo

  • Sr. Member
  • ****
  • Posts: 563
Re: 750cc pushrod bike build
« Reply #163 on: February 25, 2010, 07:32:46 PM »
Randy,

The work is great!  I'm a car guy, yet learn from you bike guys.   :cheers:

The next time you have the plates off the top between the frame tubes will you take a shot showing the stuff there.

I like the pump tube.   :-D  My only thought is if the tube entries are not sealed water from the front wheel will enter.  You may need to flush with clean water to wash the salt out.  And condensation may form inside.

Looking forward to hearing how it runs!

Geo
Logged

Offline 1212FBGS

  • Hero Member
  • *****
  • Posts: 2532
    • http://www.motobody.com
Re: 750cc pushrod bike build
« Reply #164 on: February 25, 2010, 09:34:08 PM »
another offering to the salt gods!!!! looks to pretty to have the salt destroy it.....
Kent
Logged
Pages: 1 2 3 4 5 6 7 8 9 10 [11] 12 13 14 15   Go Up
« previous next »