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Author Topic: C24 C27 trouble codes....help please.....  (Read 10616 times)

Offline Falcon-A

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Re: C24 C27 trouble codes....help please.....
« Reply #25 on: March 09, 2017, 10:20:56 AM »
Dave I was wonderin that myself?
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Offline valingt

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Re: C24 C27 trouble codes....help please.....
« Reply #26 on: March 13, 2017, 07:46:05 AM »
still have no clue what the tether switch is!

its my fault guys this post got restarted.

im haveing issues with my bike only haveing a c24 and c27 code.

have done lots and still dont know what it is. i have traded coils and injectors out.
i swaped crank sensor and i glued the tip over sensor to where it will not work.

im at the point where im thinking the injetcors arent getting the proper psi at 5k rpms. the codes only show up at 5k. i can ride all day if i stay under 5k.

Online RansomT

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Re: C24 C27 trouble codes....help please.....
« Reply #27 on: March 13, 2017, 12:37:52 PM »
When I see the term tether switch; I assume it means the added safety tether that is added to the kill switch. It's required at several racing venues.
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Offline Kevin Jones

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Re: C24 C27 trouble codes....help please.....
« Reply #28 on: June 02, 2017, 05:34:42 PM »
I'm getting my dick kicked in the dirt with this one now. Switched out both cam and crank sensors, going to try the .030 trick. I thought mine was a cam degree issue, as I just rebuilt my motor, that they might have jumped a tooth. Now I doubt myself as it seems something else going on with others as well. I will check these coil common grounds. Mine is hard to start, strange throttle response (sometimes kind of hangs on to 2k on decal), breaks up around 3.5k under load. Will not do this in neutral. Crank n bearings is all I changed out. I'm going to do a compression and leakdown just to get that out of my head. Checked volts around tether, no issues. if Seb and those guys don't know, we are fucked.

Online busa2001

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Re: C24 C27 trouble codes....help please.....
« Reply #29 on: June 03, 2017, 03:18:15 PM »
My friend had this same issue for three years, we pulled the motor no less than four times checking timing. I finally convinced him to get some adjust cam sprockets pressed on the cams, I installed and degree them in 105/107 issues when away, this was a month ago...bikes running great now with no issues.


Offline BATTMAN

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Re: C24 C27 trouble codes....help please.....
« Reply #31 on: March 11, 2018, 04:45:03 PM »
did anyone ever get a straight answer for this issue.  Im having this problem now.  I pulled the motor to freshen it up and this issue started when i installed it again.  It wont 60ft at all.  It seems like it almost cuts off and then it for about 3 sec and then it goes down the track like normal.  The mph tells me that thereis nothing wrong with the motor.  I changed the ecu, mps box, disconnected the shift light, tps, throttle bodies, injectors, and different fuel lines. the bike usually does 1.31 60ft and now it does a 2.3 60ft.

Online RansomT

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Re: C24 C27 trouble codes....help please.....
« Reply #32 on: March 11, 2018, 08:45:59 PM »
I've seen this when the intake cam is off.  Where does the rev limiter hit?
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Offline BATTMAN

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Re: C24 C27 trouble codes....help please.....
« Reply #33 on: April 04, 2018, 09:43:26 PM »
it has the stock rev limiter.  If it the intake cam was off, then it wouldnt have good mph.

Offline firemanjim

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Re: C24 C27 trouble codes....help please.....
« Reply #34 on: April 06, 2018, 11:44:45 AM »
Had a 99 that did this, swapped ecu's coils etc etc, finally just swapped the wirng harness and ran like new.
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Offline busagreek

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Re: C24 C27 trouble codes....help please.....
« Reply #35 on: April 06, 2018, 03:06:16 PM »
i had the same problem and it was the intake camshaft pin height.....

Offline firemanjim

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Re: C24 C27 trouble codes....help please.....
« Reply #36 on: April 06, 2018, 06:31:43 PM »
Trust me, I measured that, but definitely something to check. I wired the coils right to 1`2 volts, replaced cam sensor, swapped ecus, drove me crazy.
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Offline MJ Williams

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Re: C24 C27 trouble codes....help please.....
« Reply #37 on: April 06, 2018, 10:02:59 PM »
Short drive for you. :banana:
Going to Mojave? I'm going crew with Tim and his H2.
Have a Harley, spent lots of money on it, thought I had a fast motorcycle, bought a Busa, realized all I had was a fast Harley, not a fast motorcycle!

Offline firemanjim

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Re: C24 C27 trouble codes....help please.....
« Reply #38 on: April 07, 2018, 12:31:01 PM »
Drive, heck a couple steps. Planning on it.
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www.jtsperformance.com
Home of one of the fastest 750cc bikes in the world
239MPH faired, 209MPH naked!
Bonneville 200 Club
El Mirage 200 Club
Mojave Mile 200 Club
Mojave Magnum 200 Club
NEDRA 100 MPH Club
Gairdner 200MPH Achiever 2013
2014 1st place Mojave Mile N/A bike
2015 top speed trophy at WOS
Colorado mile 200 MPH club
2017 DLRA 200 MPH club

Offline MJ Williams

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Re: C24 C27 trouble codes....help please.....
« Reply #39 on: April 07, 2018, 12:44:14 PM »
Good to know I'll lock up my beer, see you in a week.
Have a Harley, spent lots of money on it, thought I had a fast motorcycle, bought a Busa, realized all I had was a fast Harley, not a fast motorcycle!