95 dt150 help please

[Solarman]

not sure, what buzzer is from?

If you jump, or short sensors, or remove items in system, you will cause this system to mess up.
This motor is integrated with all of these sensors and all the electrical components are tied to the ecm/brain/computer. EVERYTHING electrical is integrated on these motors, and you can't just jump/bypass anything and have it work properly.

Now, what do you want to do. And what truly has been done, and was this motor running recently, or, did it come back from the mechanics not running, and you're telling me all the things the mechanic did, and not the things you did?
I need to know, if I'm waisting my time here?

[dkshooter]

had a spark before it went to the last "mechanic" but thought I should start from the beginning retested the coil again on the k20 scale I had 0.00 on all three yellow wires same on the 2000 scale y to ground were all 1
g-b/r .89 and w/r-w/bl was 521 on the 2000 scale I have concerns that the monitor/gauge is not working properly. could the coil cause the loss of power?
any ideas on what the buzzer sounding every 8 sec. is all about??
Thanks

[Solarman]

why mess with the sensors??

Stop playing with the sensors, you might mess them up and have to replace them? The sensors if bad will set the monitor gauge flashing with problems, and set the alarms off. And it will put the motor in limp mode. So stop playing with them.
And if there is no spark at 1, 3, or 5. Then this is something you did that caused this? You had spark before, right??

[dkshooter]

limp mode

Ok I checked the spark and I got no spark on #1,#3 and #5 is this limp mode? I removed the oil tank and jumpered the oil flow sensor and wired the oil level sensor up all the way and now I get a buzzer at the 8 second interval I am not sure what all this means but there is still no spark on the 13&5 help?

thanks

[Solarman]

Dk, am going back to some other info too.

OK guys
here are the results of the tests I have taken I am currently waiting for my copy of the shop manual.
the ohm reading on the following
gear counter 227
pulser coils 230,228&229

charging coils (ohms) the flywheel is off
0,0,0

condenser coil 545 w/bl-w/r

tvs ohms
to tvs 4.37 ohms
to the ignition 1.45 ohms
with the ignition on the reading was
4.98 volts

the gauge,when the key is turned on shows only the limit light



I hope this makes some sense please let me know what other tests/questions I can answer to help

thanks

Ok, in the above you mentioned zero reading on your charging coils, any chance that is a mistake? It shouldn't matter that the flywheel was off, you should still get an ohms reading on your charging coils.
I am starting to wonder if it might be tied into your ecm to throw your motor into limp-mode?
My motor isn't wired like that, but maybe your motor is?

[Solarman]

TVs readings

What do you think the chances are that you could call up/ visit a Suzuki parts place and compare your TVS / readings with a new TVS?

[dkshooter]

TVS readings

Ok here are the results of the ohms on the g/r-b wire at neutral it reads .92 at full throttle the reading is 2.61 ohms the throttle plate is at about 60 degrees there is no noise on the reset button
thanks again

[Solarman]

dt150, running issues

Ok, dk, we need to back up.
Go back to your TVs. Disconnect and check the resistance on the sensor again.
On the 20k scale what is the ohm reading for neutral, and what is the ohm reading for full throttle?
And you have an oil reset switch on the side of your motor by the tilt switch, notice, if you press it in does it click the first time you press it?
Get back and let us know.

[dkshooter]

TVS adjustment

well I adjusted the TVS by the manual on the output side it was off by .07 volts I adjusted it down to the river well making a short story long ..... nope no difference back to square 1 any ideas??

[Solarman]

TVs readings on your dt150 efi

Is it possible your TVs is out of adjustment?
If you adjust your TVs by the manual, would it then read closer to my readings? Is it possible that someone in the past loosened/ adjusted it and you're only getting half throttle all along?
Let us know.

[Solarman]

TVs readings...compared with my motor.

On same scale, 20k, I have 4 wires at sensor.
Only 3 in joining connector.
My readings on tan/blk are about 1.2 at neutral, 4.3 for full throttle.
Have similar reads for tan/pink wires, started at 2.2, then I disconnected linkage and it went to 1.3, full throttle about 4.3.
My TVs is on a working dt 140. One of two on my sea cat. Both of mine are running well.
I think your TVs sensor is reading about half of mine. So it might be wise to test another TVs sensor if you go to a parts place take your meter and read full open and full relaxed. if you read close to your reading, your sensor might be good, but think you should be reading closer to my readings. I would think the TVs on your motor should read more like mine, I haven't checked the part numbers of your sensor and mine but don't think they should read ths much different.
Let me know what you find.

[dkshooter]

the resistance on the throttle valve sensor on the b-g/r at neutral is .84 and at full throttle is 2.61 on the 20 k scale does this help?
thanks

[dkshooter]

Ok finally got a chance to check the TVS I did not have the test cord so I just inserted the probes in the back side of the connector I hope this is OK? the readings are Br/y 3.91 vdc and the Lg/R is .55 so that falls out of the range and according to the manual needs to adjusted could this be the answer to the lack of power?
I took these readings thru the throttle positions as this seems to be the area where the problem exists
throttle is in neutral Lg/r reads .55 vdc
throttle is at 1/4 the reading is .55 vdc
throttle is at 1/2 the reading is 1.22 vdc
throttle is at 3/4 the reading is 1.65 vdc
throttle is at full the reading is 2.15 vdc
do these readings look OK?
thanks guys

[Solarman]

throttle valve sensor - tvs

In your service manual, it describes how to test and adjust your TVS sensor. you will need to download that page to test it.

[dkshooter]

yes there is a short beep and the rev light for a few seconds. just removed the high pressure fuel filter was able to blow air both directions checked the cone shaped screen also clean and checked the main fuel filter also clean. I'm thinking it must be the TSP but I cannot figure out how to test it.
thanks