KYMCO like 200 keeps dying

[Stig / Major Tom]

You get 5 (=as in 5.0)? That means your resistance check  of 16.4 ohms is REALLY 11.4 ohms which is in the normal range. You still have a fuel delivery problem.

Causes:
1. System volts below 10.5 when cranking to start.
2. Low fuel pump output/pressure
3. Bad gas or diesel in tank.
4. Too much time on this forum has ruined you!

Sorry Karl,
I didn't imagine a multimeter being that far off calibration. ...so assumed he meant  .5  ,   not 5.0

Hope he clarifies for us.
If he had a meter reading 5 in self test -- probably should toss it - yes?
Stig

[CROSSBOLT]

Could be a problem with test leads. Could be an old Simpson 260 with zero adjust. Could be .5 ohms. Who knows?

[whiskers626]

I’m gonna go today and buy a new voltage meter, I’m thinking my old one has some issues,
Question I noticed on my injector threre is a small tear in the print would that cause a problem not a big tear but it’s just nicked

[whiskers626]

The fuel pump seems to be working fine, I took the hose off the injector and turn the key on so I could get the last little bit of gas out and it seemed to be pumping pretty good, I need to find a scooter diagnostic tool ugh

[Stig / Major Tom]

I’m gonna go today and buy a new voltage meter, I’m thinking my old one has some issues,
Question I noticed on my injector threre is a small tear in the print would that cause a problem not a big tear but it’s just nicked

"....tear in the print" ??
POINT?....the spray tip? You lost me here.
The fuel line?
And, yes a healthy multimeter to read that injector again would give us some good info!

Stig

[CROSSBOLT]

Yeah, me, too! Whisker, what is "print" in relation to injector? You gotta use terms we understand or define the terms you use.

[JJJoseph]

I need to find a scooter diagnostic tool ugh

It's about time somebody woke up to this fundamental tool that nobody here has ever heard of!

[whiskers626]

Sorry not point but O RING, not sure what happen, the auto correct on my phone I guess

[Stig / Major Tom]

OK, thanks.
To review :
1) continues to start & run for few seconds only on starter fluid spray?
2) obtaining another multimeter & will test ohms reading when:
## touching its 2 probes together
## touching injector

Small nick in O-ring should be OK.
Would be heck trying to find replacement.
Stig

[whiskers626]

Ok new meter readings below
Touching probes together 4.3
Touching probes on injector 16.5

[CROSSBOLT]

Many of us live to solve problems on these scoots! Nothing is more satisfying than to hear a guy or gals scoot is now back running better than ever! But each one with a problem has to meet us half way with information. Makes no difference who comes up with the solution. The main idea is that the problem is solved and you are back in the saddle, again!

New meter readings? New meter or new readings on original meter?
OK, your injector is 12.2 ohms, good to go. If it sprays consistently into a can during start sequence then you have either an air or compression problem.
But, since it will fire and run while you spray into inlet something flammable that gets back to a fuel problem or fuel delivery problem.
Something is missing in the information....

[Stig / Major Tom]

I'm having trouble with the readings whiskers is reporting.

My concern is with such a huge "test reading" of 4.5 ohms (or previous 5.0 ohms).

I'm no electrical expert - so I spoke today with 3 private electrical service shops in town.
Each said pretty much the same thing, to wit:
"When touching probes together on a digital multimeter it should read 0 or very near 0" (0.3, 0.6, 0.4, etc.)
And: "Readings which are not zero, or very near zero," (such as whisker's 4.5>5.0 ohms) - "is indicative of a faulty tool or bad battery in the tool."
There is usually no adjustment on a digital multimeter to "0" the meter before starting.

If he is using an analog meter (pointer with scale) these must be "zero'd" before taking the reading of the injector. There is a small screw or knob to perform this zero-ing.

Photos or a video of whiskers taking his reading with his meter would sure be helpful.
If our equipment is faulty - or the testing is faulty - we've moved no closer to a fix, nor have we ruled anything out.
Stig


 

[JJJoseph]

Small nick in O-ring should be OK.
Would be heck trying to find replacement.

O-rings are not a problem - just go to the O-ring store, there's usually one in any decent-sized town.

[CROSSBOLT]

I'm having trouble with the readings whiskers is reporting.

My concern is with such a huge "test reading" of 4.5 ohms (or previous 5.0 ohms).

I'm no electrical expert - so I spoke today with 3 private electrical service shops in town.
Each said pretty much the same thing, to wit:
"When touching probes together on a digital multimeter it should read 0 or very near 0" (0.3, 0.6, 0.4, etc.)
And: "Readings which are not zero, or very near zero," (such as whisker's 4.5>5.0 ohms) - "is indicative of a faulty tool or bad battery in the tool."
There is usually no adjustment on a digital multimeter to "0" the meter before starting.

If he is using an analog meter (pointer with scale) these must be "zero'd" before taking the reading of the injector. There is a small screw or knob to perform this zero-ing.

Photos or a video of whiskers taking his reading with his meter would sure be helpful.
If our equipment is faulty - or the testing is faulty - we've moved no closer to a fix, nor have we ruled anything out.
Stig

Right on all points, as usual. The issue with the 4.5 or 5 ohms is probably contact resistance INSIDE the meter. I have had to open up and goober the range switch and fuse clips on a cheapo meter here. Even had to do that on a Simpson 260  I have had since 1960! Go figure! Contact cleaner and lube...

[whiskers626]

Ok all, I’ve read back through all pages and redid all the test and everything checks out and still nothing. I have decided it is some type of fuel thing. When I spray starter fluid in the air breather it will run as long as I keep spraying a little in there. So I don’t know what to do at this point. I’ve been looking for a rental diagnostic tool but my searches are coming up short.
Any other ideas?