yammy special pocket meter?

[J00ky123]

Trying to test my 115 and the manaul keeps telling me to only use the yamaha special pocket tester because any other ohm meter will be off?<br />What? isnt a ohm a ohm? Would a 2k resistor be measured differntly with yamahas special $100 tester? I call BS. <br />Whats your opinion?

 

[rodbolt]

Re: yammy special pocket meter?

check the input specs on the meters, some are different than others and will show different readings.<br />if all your measuring is a single resistor then any meter will work, however if you toss in some diodes and other devices the meters input impedance and measuring currents can make a difference.<br />what are ya trying to measure ?

 

[J00ky123]

Re: yammy special pocket meter?

My motor is going into rev limiting state (2k rpm max)with no buzzer going off.(yes the buzzer works) I have a 91 115 v4 2 stroke yam. I have a digital volt meter and quite handy at fixing stuff. Just wanted to check the CDI and see if that was the cause. <br />I have a degree is electronics and cant seem to remember ever hearing that ohms can be tested different on different test units. So when I read that I needed the special tester I was quite puzzled.

 

[rodbolt]

Re: yammy special pocket meter?

do you have a peak reading meter or a DVA adapter for your DVM? RMS wont work.<br />if your positive all the alarm systems are in opererating condition the try it again with the pink wire removed from the CDI. testing the CDI output voltage with a peak reading meter will show quickly if its actually RPM reduction.<br /> really rare to see the V4 CDI fail though.<br />and yes meters vary wildly, some TPS voltages ya have to be very careful with cause some analog meters use to high a voltage for the test.<br /> at least,so far, we dont have to have vacum tube voltmeters.<br />I never finnished the electives for my degree but I have done it a long time and got some intensive training as a navy FC.

 

[J00ky123]

Re: yammy special pocket meter?

the cause was a loose ground connection to the battery.