KymcoForum.com
Scooters - 125 to 300 => Yager GT 200i => Topic started by: gilligan5000 on May 18, 2012, 01:54:00 PM
-
Hey guys. I bought the wife a used Yager about a week ago (3800miles, pretty clean, pretty good price from a repo depot :) . The PO was either really dumb, or was trying to sabotage the scoot because it got repo'ed from him.
The oil light was on, so like a human with a brain in my head I read the manual and found out its just a milage based reminder to change the oil. I said, "ahh what the hell, one quick spin around the block". I put about 5 miles on it, and it got REALLY sluggish. I immediately pulled into a gas staion, and decided to check the oil. As soon as I removed the dipstick oil was spewing out. I drained 32, no thats NOT a typo, 32 oz of EXTRA oil...just to get it to MAX on the dipstick.
I rode home, and immediately get a new filter, drained the old oil and put 900ml of mobile 1 in her. She seems to be running fine now, but I want to know if there is anything else I should take apart and clean, or check up on? I know my other scoots warn that the air filter can suck up oil if you overfill to that extreme...
Any help would be greatly apprecitated! Thanks in advance.
-
definitely check the air filter, overfilled oil will get in the filter.
It is a good thing it is running well, was overfilled will also usually affect the sensors for the fuel injection system.
Other thing to check, there is a crankcase breather drain, which permits you to drain water and oil that has condensed in the air cleaner. Download the users manual and you can see it on page 42:
www.kymcousa.com/owners/onroad/Yager200i.pdf (http://www.kymcousa.com/owners/onroad/Yager200i.pdf)
then change the transmission fluid, page 50, don't know how long it has been since it has been changed.
Other than that, might want to go through it all, make sure bolts are tight, check the brake pads front and rear, verify the battery is still holding a good charge by checking it with a meter.
good luck with it
-
Another thought, you might want to check the valves. I thought mine was running fine, I adjusted the valves found the intake at .0015 adjusted it to .004 and it made a difference in how it runs.
-
With all that oil, it whipped up into foam when it was running. Along with problems the other motor heads here have suggested you watch for (all correct) keep ypur eye out for oil leaks caused by blown out oil seals.
-
With all that oil, it whipped up into foam when it was running. Along with problems the other motor heads here have suggested you watch for (all correct) keep ypur eye out for oil leaks caused by blown out oil seals.
Too much oil will result to high oil pressure and will damage seals. Also your engine will whip the oil and turn it into froth or foam. Foam or bubbles cannot lubricate. go figure
-
..might want to open the cvt case cover...make sure there is no oil coming out around the crank bearing seal...
-
Thanks for all the comments guys. It's kinda running like monkey chit at the moment...starting to knock, really bad under heavy acceleration. I've never riden a "new" one, but compaired to my 125cc zuma this thing has a general lack of power. I think I'm going to start with a plug as I assume it's pretty foul.
-
Oh yeah...top speed is a whopping 49 mph. Something is going on here and I have no idea what it is.
-
Changed the spark plug and had no noticeable improvements. Took the thing apart again and noticed the air box snorkel was TOTALLY crushed...disconnected it and voila! Instant increase in power and a new top speed of an indicated 76mph!!
-
You will want to repair that asap. You could lean out, and increase combustion temps to the melting point of your piston.
-
You will want to repair that asap. You could lean out, and increase combustion temps to the melting point of your piston.
I'm sure the potential is there, but definitely not to that extreme. The air is still only traveling through a 1.25" hole on the airbox, still traveling through a stock throttle body (~26mm), and the engine is water cooled. Also, I'm positive the snorkel is only designed to be there to reduce the intake noise.
This is just my opinion, and I do appreciate the concern...but I'll proceed at risk.
I really just wanted to document this incase anyone else has low power issues, low top speed, bogging at starts, etc.
-
..the oem airbox is very restrictive, and if you run without it, it most likely will burn your piston, especially if you make long runs...
..you can however, increase the main jet size in your carburetor, and enjoy even more performance increase!...
...but then you will really need to add an aftermarket free-flow air filter..
..must filter intake air, to keep trash out of your carb...
peace
-
is it the snorkle between the the drive unit case and the air cleaner? mine was'nt connected upon inspection doing 2nd oil change. took out the storage box with seat and reconnected. i never noticed a difference but it was never restricted like being crushed. if it is that snorkle you won't hurt a thing. if its the one between the air box and the efi you will. your right about that one being for noise. that square hole in the bottom of the cvt case is where the yager actually breathes from. hard to hear intake from way down there.
-
..yeah, that wont matter much, if its off..
-
that square hole in the bottom of the cvt case is where the yager actually breathes from
..really?
-
Does the Yager check air density coming in between the air filter and injector? If it does won't burn it up without the filter is it changes for density. Now this depends o if the ECU adjusts for oxygen etc, but if it only adjusts for exhaust O2, then it could be a problem.
Glad to hear you have it running well, still need to check it all out.
-
Alot of the gy6 engines have the same set up. Goofey ass breathing thru the cvt...
I thought the air box tube was off the carb. Cool...
-
Does the Yager check air density coming in between the air filter and injector? If it does won't burn it up without the filter is it changes for density. Now this depends o if the ECU adjusts for oxygen etc, but if it only adjusts for exhaust O2, then it could be a problem.
Glad to hear you have it running well, still need to check it all out.
You mean a MAF sensor? I dunno if there's is one. Let's ask the guys here... Guys?
-
IDK?????? That is where it would need to be if it were an FI scoot
-
Dave is referring to the Mass Air Flow sensor (MAF). A mass air flow sensor is used to find out the mass flowrate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density as it expands and contracts with temperature and pressure. Air density varies with the ambient temperature, altitude and the use of forced induction, which means that mass flow sensors are more appropriate than volumetric flow sensors for determining the quantity of intake air in each piston stroke.
-
SEE Now if they could just find a way to use all that to get gas inside :P the engine. It would be Ideal!
-
My baddddddd I saw the gy6 thing, and forgot this was a 200i. Still is most likely...
I just looked at the parts diagrams. There is No maf/map sensor listed. There may be a vacuum flow port in the throttle body instead. I'd assume it was safe to run. No worries.
still...
-
that square hole in the bottom of the cvt case is where the yager actually breathes from
..really?
yep ! pull your box with seat and follow the air intake. like zombie said, goofy !
-
..i'll say so..lol..that is goofy...
-
The whole deal sucks road debris straight into every moving part of the cvt, and then drops it all in the air box! WTF!
-
..makes no sense to me...