New Vbike V4SW liquid cooled 250cc atv. [b] PIC HEAVY [/b] - Page 8

Cal25 · 03-13-2009, 09:52 AM

Just watch out about using Rotella in vehicles with O2 sensors.

KentuckyDonkey · 03-13-2009, 11:10 AM

Quote:

Originally Posted by Cal25

Just watch out about using Rotella in vehicles with O2 sensors.

I've heard that ZDDP has been greatly reduced/phased out of Rotella over the last few years. Even before it was...many of us were using it in oxygen sensor/catalytic vehicles without problems- including in my van which has 270,000 miles on it, and has not needed an O2 sensor in the 7 years I've had it. (Quite frankly, I was ignorant of the ZDDP issue in the past

)

Cal25 · 03-13-2009, 01:29 PM

I think it was especially good for the bearings. Sounds like a good all around oil.

Danthalis · 03-15-2009, 12:02 AM

Well thanks for the input, got it all put together and did the first two oil changes, taking it out tomorrow. Fired up right away, haven't had to do any adjustments to the carb. Purrs like a kitten

Front shocks seem a little hard, other than that I am blown away.

Neighbor saw me putting it together, came over talking about how he's a big Kawasaki fan (I got the green one) heh apparently he's not THAT big of a fan to mistake the two

Thanks again for the input and the thread, and I'll agree with everyone else in saying this is a flat out amazing machine considering what I paid it's almost too good to be true!

EDIT:Put the atv through the works today, everything but jumped it. Very fast, wow. Only lost one screw (to the clutch handle none the less) so going to give it a good once over tomorrow. Also needs a vented gas cap. Kept stalling out on me, had to open the tank and give it about 30 seconds and it fired right back up. Finally got smart and started randomly venting as I rode. Other than that no problems at all. 8)

KentuckyDonkey · 03-15-2009, 11:04 PM

Leave it to me to get the defective things!

First the rear brakes...now the carb!

Now that the motor's fairly well broken in, I went to adjust the carb- as I was having a little idle issue (Had to turn the idle speed up when I first got it, to keep it from stalling when cold....but then it idles too fast when warm)- so I go to turn the mixture screw all the way in..and guess what? It already was all the way in!

So I tried turning it out...but after just about 1/2 a turn, turning it out makes gas pee-pee from the overflow hose!! (and turning the screw has absolutely no effect on the speed of the motor).

Guess I have to call Tim tomorrow while I'm waiting for those brake parts.... (It also has a slight miss and often does light backfires through the exhaust- spark plug looks good though...)

TeamCheap · 03-16-2009, 05:47 AM

Are you sure thats the mixture screw?

Most carbs have a screw that will allow you to drain the fuel from the carb as you described.

Can you post a few pictures of the carb ? (both sides and underneath)

On our bike the air/fuel mixture screw is on the bottom on the front side of carb (pain to get at) but there are a few different carb setups out there so yours might be different.

Danthalis · 03-16-2009, 03:13 PM

Quote:

Originally Posted by KentuckyDonkey

Had to turn the idle speed up when I first got it, to keep it from stalling when cold....but then it idles too fast when warm

Man sorry about your run of bad luck there KentuckyDonkey I did notice that as the bike warmed up the idle got higher and higher. I had my neighbor come check it out and we got it adjusted just right (it's the screw with the spring on it, if that helps.) Never had any leaks. If you'd like some pictures I can take a couple when I get home.

I also wanted to see if anyone had done any tooling on these shocks. I adjusted the preload nuts to better suit my weight (was told they are usually set to a 165lb rider) and I am wondering if that is the only 'adjustment' the shocks are capable of? I feel every single pebble on this bike and I'm having no luck finding after market shocks. Anyone have any thoughts?

TheRealWorld · 03-16-2009, 03:44 PM

KentuckyDonkey.

I think the screw you are trying to adjust is the carb drain screw. You should look at a screw up a little higher on the carb, and you should find it is open at least a turn. It should be be about right between 2 and 3 turns. Hope this is helpful, I am so very busy and have to get to work, good luck!

KentuckyDonkey · 03-17-2009, 11:05 PM

O-K guys.....I believe this is the mixture screw, here at the bottom of the bowl. It looks like the only screw on the carb that fits the bill.

Huh? HUH??!!

It is turned ALL the way in (like that when I got it)

Tim seems to think that the float is bent/stuck- but I don't see how that can be, when the bike runs great and has no drivability issues.

To recap: If this mixture screw is turned out, it has no effect on the motor's speed.

If it is turned out, it will start making gas pour from the overflow/vent tube, even after just 1/4-1/2 turn.

In order to get bike to idle without finger on throttle when cold, had to turn idle speed up; But now it idles too fast when warm.

Pops/backfires lightly through exhaust.

Ideas?

(or is this indeed the wrong screw...and I'm a complete doofus???)

TheRealWorld · 03-17-2009, 11:36 PM

Yep, that is the wrong screw!

KentuckyDonkey · 03-18-2009, 12:01 AM

Quote:

Originally Posted by TheRealWorld

Yep, that is the wrong screw!

You're shi.....errr....kidding me?!

Hmmm....well that is actually GOOD news, because it means my carb can probably be adjusted then, and there is probably nothing wrong with it.

But I don't see any other screws that fit the bill on the carb- any idears where to look?

Thanks!

SpudRider · 03-18-2009, 12:11 AM

Quote:

Originally Posted by KentuckyDonkey

Quote:

Originally Posted by TheRealWorld

Yep, that is the wrong screw!

You're shi.....errr....kidding me?!

Hmmm....well that is actually GOOD news, because it means my carb can probably be adjusted then, and there is probably nothing wrong with it.

But I don't see any other screws that fit the bill on the carb- any idears where to look?

Thanks!

He's not kidding you; that's the carburetor drain screw. :wink:

Quote:

Originally Posted by TeamCheap

â€¦Can you post a few pictures of the carb ? (both sides and underneath)

On our bike the air/fuel mixture screw is on the bottom on the front side of carb (pain to get at) but there are a few different carb setups out there so yours might be different.

If you post the photos TC mentioned, I am sure we can help you find and adjust your pilot mixture screw.

Spud

katoranger · 03-18-2009, 12:21 AM

I believe it is the brass colored screw near that green wire to the bottom front of the carb.

Allen

KentuckyDonkey · 03-18-2009, 12:24 AM

Ohh...I'll bet it's this upside-down gold thingie, eh?

I didn't even notice that till I took the picture...heh...I'm half blind- or more like 4/5ths....

KentuckyDonkey · 03-18-2009, 12:30 AM

Well thanks, Allen & everyone! (You beat me to it, Allen!).

Now that I have the right screw...I should be good to go.

Any advice appreciated though!

Lets see, it's been a while- but I think it goes something like this:

Turn mixture all the way in.
Back out two turns.
Adjust idle to proper speed.
Piddle with mixture c.1/2 turn in either direction till I ghet the fastest revs.
Repeat the above 2 steps ad infinitum until it's right.
?????

One question: How do I know if if the needle thingie in the top of the carb needs to be adjusted as opposed to the mixture/idle?

And here i was blaming my poor Vbike, and ready to disassemble the carb and check the float! (Poor little innocent Vbike! Oh, my poor baby!)

Thanks again guys- these forums are great!

03-18-2009, 12:21 AM	#118
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I believe it is the brass colored screw near that green wire to the bottom front of the carb. Allen __________________ You meet the nicest people on a Honda Clone.
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03-13-2009, 09:52 AM	#106
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	Just watch out about using Rotella in vehicles with O2 sensors.
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03-13-2009, 01:29 PM	#108
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	I think it was especially good for the bearings. Sounds like a good all around oil.
	0

03-15-2009, 12:02 AM	#109
Danthalis Join Date: Mar 2009 Location: Silver Springs, NV Posts: 45	Well thanks for the input, got it all put together and did the first two oil changes, taking it out tomorrow. Fired up right away, haven't had to do any adjustments to the carb. Purrs like a kitten Front shocks seem a little hard, other than that I am blown away. Neighbor saw me putting it together, came over talking about how he's a big Kawasaki fan (I got the green one) heh apparently he's not THAT big of a fan to mistake the two Thanks again for the input and the thread, and I'll agree with everyone else in saying this is a flat out amazing machine considering what I paid it's almost too good to be true! EDIT:Put the atv through the works today, everything but jumped it. Very fast, wow. Only lost one screw (to the clutch handle none the less) so going to give it a good once over tomorrow. Also needs a vented gas cap. Kept stalling out on me, had to open the tank and give it about 30 seconds and it fired right back up. Finally got smart and started randomly venting as I rode. Other than that no problems at all. 8)
	0

03-15-2009, 11:04 PM	#110
KentuckyDonkey Join Date: Feb 2009 Posts: 331	Leave it to me to get the defective things! First the rear brakes...now the carb! Now that the motor's fairly well broken in, I went to adjust the carb- as I was having a little idle issue (Had to turn the idle speed up when I first got it, to keep it from stalling when cold....but then it idles too fast when warm)- so I go to turn the mixture screw all the way in..and guess what? It already was all the way in! So I tried turning it out...but after just about 1/2 a turn, turning it out makes gas pee-pee from the overflow hose!! (and turning the screw has absolutely no effect on the speed of the motor). Guess I have to call Tim tomorrow while I'm waiting for those brake parts.... (It also has a slight miss and often does light backfires through the exhaust- spark plug looks good though...)
	0

03-16-2009, 05:47 AM	#111
TeamCheap Join Date: Jun 2006 Location: directly under the earths sun............NOW Posts: 2,302	Are you sure thats the mixture screw? Most carbs have a screw that will allow you to drain the fuel from the carb as you described. Can you post a few pictures of the carb ? (both sides and underneath) On our bike the air/fuel mixture screw is on the bottom on the front side of carb (pain to get at) but there are a few different carb setups out there so yours might be different.
	0

03-16-2009, 03:44 PM	#113
TheRealWorld Join Date: Jun 2008 Posts: 817	KentuckyDonkey. I think the screw you are trying to adjust is the carb drain screw. You should look at a screw up a little higher on the carb, and you should find it is open at least a turn. It should be be about right between 2 and 3 turns. Hope this is helpful, I am so very busy and have to get to work, good luck!
	0

03-17-2009, 11:05 PM	#114
KentuckyDonkey Join Date: Feb 2009 Posts: 331	O-K guys.....I believe this is the mixture screw, here at the bottom of the bowl. It looks like the only screw on the carb that fits the bill. Huh? HUH??!! It is turned ALL the way in (like that when I got it) Tim seems to think that the float is bent/stuck- but I don't see how that can be, when the bike runs great and has no drivability issues. To recap: If this mixture screw is turned out, it has no effect on the motor's speed. If it is turned out, it will start making gas pour from the overflow/vent tube, even after just 1/4-1/2 turn. In order to get bike to idle without finger on throttle when cold, had to turn idle speed up; But now it idles too fast when warm. Pops/backfires lightly through exhaust. Ideas? (or is this indeed the wrong screw...and I'm a complete doofus???)
	0

03-17-2009, 11:36 PM	#115
TheRealWorld Join Date: Jun 2008 Posts: 817	Yep, that is the wrong screw!
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03-18-2009, 12:24 AM	#119
KentuckyDonkey Join Date: Feb 2009 Posts: 331	Ohh...I'll bet it's this upside-down gold thingie, eh? I didn't even notice that till I took the picture...heh...I'm half blind- or more like 4/5ths....
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03-18-2009, 12:30 AM	#120
KentuckyDonkey Join Date: Feb 2009 Posts: 331	Well thanks, Allen & everyone! (You beat me to it, Allen!). Now that I have the right screw...I should be good to go. Any advice appreciated though! Lets see, it's been a while- but I think it goes something like this: Turn mixture all the way in. Back out two turns. Adjust idle to proper speed. Piddle with mixture c.1/2 turn in either direction till I ghet the fastest revs. Repeat the above 2 steps ad infinitum until it's right. ????? One question: How do I know if if the needle thingie in the top of the carb needs to be adjusted as opposed to the mixture/idle? And here i was blaming my poor Vbike, and ready to disassemble the carb and check the float! (Poor little innocent Vbike! Oh, my poor baby!) Thanks again guys- these forums are great!
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