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Twowheeltony1
Posted on Saturday, August 22, 2009 - 09:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

has anyone else seen the trojan horse uk, mikuni carb conversion kit for x1/s3 fi bikes .in the description it says to send them your ecm so they can drill out and epoxy some part of the ecm ? does anybody know what? or why they are drilling ? it also states that u can use the stock ignition . ????
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Oldog
Posted on Saturday, August 22, 2009 - 09:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The ECm would not require mods, the best avenue IMO would be to get an aftermarket ignition and rewire the bike, you will have to

remove the fuel pump and install a petcock
remove the intake and replace with a non fi manifold
change out the ignition and timing cup
re wire
jet the carb.
ride and enjoy.


or just gut a dead pump, install a carb instead of the throttle body, and try it that way. It "should work" the ecm will be coding for the pump and injectors.
also there is a potential for air leaks around the injector heads.

your $$
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Jasonl
Posted on Saturday, August 22, 2009 - 10:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I just changed over my 99 S3T.

I simply installed a CV carb and the carb manifold. I then gutted the fuel pump and installed a Briggs and Stratton plastic inline fuel petcock. Those were the only changes I made. It runs great after rejetting the carb.

Same injection race ECM. Same timing cup.
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Twowheeltony1
Posted on Sunday, August 23, 2009 - 12:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

jasonl did u have to change the throttle cables or did the stock ones work??
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Drhacknstine
Posted on Sunday, August 23, 2009 - 07:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Aaaugggg... That kit must come with wide white-wall tires and a hand shifter? I can't understand why you would want to use a carb. Is it a track bike, a crappy bobber sportster project?

With ECM SPY, you can do soooo much more than you can with a carb. Please, please explain, And in the mean time if spoke wheels and drum brakes become to good to pass up, seek medical help...
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Phelan
Posted on Sunday, August 23, 2009 - 08:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dr, FI isn't always fun to deal with, especially DDFI. Some people feel more comfortable working with a carb so they can do the work themselves without having to be tech-savy.
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Drhacknstine
Posted on Sunday, August 23, 2009 - 09:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I Don't want to offend anybody. But, I grew up old school, bean burners with three sets of points and three carbs,on a Kawee H1 500 (PITA). Buell FI is dead reliable on tubers in most cases. Even with an exhaust swap and aircleaner mod, It made the adjustments on its on its own. There are plenty of young guys on this board who will be glad to help do the mods as needed as well as teach. Please give it a good shot before going back to the bit and bridle.
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Twowheeltony1
Posted on Sunday, August 23, 2009 - 10:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

this x1 i have was 100% stock when i bought it 6 months ago . i made a slip on for it with $20 summit glass pack. then i decided to do away with the air box ,and went with a velocity stack w/screen . i purchased a ecm spy cable ,it came with program and maps . bike ran great before , hooked up ecm spy bike was running i was just monitoring the bike stalled and will not start ? at first no codes , after it stalled i have codes for iat ,fuel pump, and bas .15 ,35, 44 . i started with a new battery , then i found a broken ground under tank ,fixed it . still nothing , early this week i went through connectors for the ecm ,cam sensor, bas ,fuel pump , still will not run .it starts for a second if that . it will also back fire through intake and exhaust . fuel pump runs like normal . ???????
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Oldog
Posted on Sunday, August 23, 2009 - 11:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

it will also back fire through intake and exhaust
fuel pump runs like normal


when the ignition is turned on the CEL comes on for 4 sec and the pump "primes" the fuel rail?

do you have pressure ?

can the motor be made to run by feeding it gas at the intake stack?
If yes ignition ok fueling problem
if no check coils plugs,and then timing
With ECM SPY
to check the coil pack
remove the plug end wire remove the plug from the engine, ground the plug run test with ecm spy and watch for spark ( you can use a neon timing light or another plug if handy.

to check timing you must remove the timing cover, get the "sacred rivits" drill out the existing rivits, remove the cover remove the timing plug at the base of the cylinders, remove the spark plugs, put the bike in 5th and turn it over slowly watching for a line in the window as the front cylinder comes to TDC back up a bit and slowly roll the timing mark to the center of the window, check the 0/5 timing (cps) indicator NOTE there are time issues between your computer and the ECM via SPY move slowly and steadily

TWT there are a number of common things that can be wrong, you can carb the bike but you loose a lot of functionality that way...
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Drhacknstine
Posted on Monday, August 24, 2009 - 12:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

OK, Who is closer to Tony, I'm a little far away to be running up for a weekend wrench fest with a laptop along .

I'd start with a point by point inspection of the sensors and connectors. It should start and run, PROVIDED there isn't a mechanical failure causing the hangup. (I.E. Solid core plug wires, scramble signals from sensors(ask how I know) . The broken ground isn't uncommon, helped fix it on a friends X1.)

Will a failure of the oil pump drive gear cause PCM to shut down on oil loss? Let some of the experienced guys answer this and guide you.

It's YOUR X1 if you want GO FOR the THROAT, I should stand aside. But, time is usually more helpful. My friends bike was down for two weeks with that intermittent ground problem. I have had the experience of finding and fixing an X1 with nothing more than a service manual and basic automotive skills. (Didn't find my way here till I bought my S3T.) Find a buddy on the forums in your area. XB, Uly, rider or whatever. Fresh eyes and perspective work wonders. My friend had the carb and such picked out! Till we found the bad ground.

A simple formula will help, GOT fuel? should be able to tell after cranking buy checking the plugs. GOT spark? Timing light on the timing hole between jugs should tell. Start simple. work your way though it. When the fuel pump died on that X1 a month later, we checked our guess with a little shot of fuel in the throttle body. The manual tells how to test every sensor and part on the bike. Even if you dumped an XB or ULY EPROM(totaly wrong in an X1) that comes with ECMSPY, it can be recovered from! It seems daunting but, a slow basic diagnosis should find the problem.
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Blks1l
Posted on Monday, August 24, 2009 - 08:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I also put a carb on my 00S3T,using the original Race ECM, and have enjoyed it ever since! Good Luck!
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Pkforbes87
Posted on Monday, August 24, 2009 - 08:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm putting FI on a '97 S3, so sort of going the opposite direction.

Sorry I can't offer helpful advice with your downgrade.

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Jasonl
Posted on Monday, August 24, 2009 - 10:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

My throttle cables didn't require mods. I just hooked them up to the carb.

I moved from FI because I was fixing my Buell on the cheap. It sat outside for months on end so I wasn't sure if any of the sensors or injectors were good. The carb was a known quantity so I installed it to get up and running. If the FI was in known working order I would've gone with an ECMspy and cable.

All in all I'm happy with the carb install. It went very well and the bike is a reliable runner on the cheap.
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Twowheeltony1
Posted on Tuesday, August 25, 2009 - 07:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

jasonl does your check engine light stay on ?
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Jasonl
Posted on Tuesday, August 25, 2009 - 10:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Oh yeah. The engine light is constant. I haven't investigated how to get it to go out with a carb.

Maybe one day when I have more cash, and I'm bored, I might try getting the FI working again.
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Drhacknstine
Posted on Tuesday, August 25, 2009 - 10:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Maybe PK and tony should get together and swap some parts! Since they both have the parts the other will need.
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Blks1l
Posted on Friday, August 28, 2009 - 08:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

As far as the check engine light, I de-pinned that pin from the connector, or else you could just pull the bulb.
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Kalali
Posted on Friday, August 28, 2009 - 12:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

"bike ran great before , hooked up ecm spy bike was running i was just monitoring the bike stalled and will not start ? at first no codes , after it stalled i have codes for iat ,fuel pump, and bas .15 ,35, 44"

Based on what you wrote and the sequence of events, the first thing I would do is get a stock EEPROM file from someone and burn it into the ECM (or borrow an known good ECM from someone). Then clear all the codes, make sure the battery is good, put fuel in the tank, hold your breathe and fire up the bike. You may be pleasantly surprised...
Let us know how you make out.
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14d
Posted on Friday, August 28, 2009 - 03:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I can send you the race EEPROM file from my 00 X1, if you need it PM me.
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Twowheeltony1
Posted on Friday, August 28, 2009 - 05:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

thanks guys for the advice ! i will try and reburn the eeprom and see what happens ? i won a carb intake off ebay for $5.50 plus shipping and a friend has a cv carb he will sell me for $50.00 so if the eeprom reburn does not work my carb conversion will cost me less than $100.00 with gaskets. but the carb conversion is an affordible last resort .
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Kalali
Posted on Sunday, August 30, 2009 - 02:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Also make sure you reset the TPS after you burn the new EEPROM. It is also a good idea to set the AFV to 100%.
Good luck.
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