Chinese ohv advice needed.

[rhinocharg]

Hi there I was just wondering if there are some people that might offer their expertise here. I bought this three or four years ago for my son. It came with the original engine but it had a 125 from a pit bike in it with a clutch. I took that out and I'm trying to decide if I should put the stock motor back in or try a predator. The guy said the original engine had a transmission problem. It was a little too fast at the time for my son and sadly it has sat outside the last couple of years. He's interested in it again so I'm hoping to get it running. Any thoughts or advice are encouraged. I have seen a local craigslist ad for a motor and transmission for 160. That's close to what it would cost for a predator a clutch and a chain. I'll try to create and account and post pics. It originally was a 70 mL with four-speed automatic.


Sent from my iPhone using Tapatalk

 

[Kleyny]

Welcome.
Pics will help with a more accurate advice but it seems hard to beat the predator for value for money. Upgrade parts readily available and they are simple and easy to work on.

Neil

 

[rhinocharg]

Welcome.
Pics will help with a more accurate advice but it seems hard to beat the predator for value for money. Upgrade parts readily available and they are simple and easy to work on.

Neil

Thanks Neil. Hopefully these work



Sent from my iPhone using Tapatalk

 

[itsid]

lots and lots of fiddling to mount a predator (or any industrial engine) to a kart that came with a gy6.

get a gy6 I say.. less hassle more power (and just as chinese)
make sure to buy the correct one though, they all look alike but are NOT
(two different case sizes, laying or standing cylinder and several different PTOs and IDk how man different mounting patterns and additionals (like inbuild reverse and such))

find the manual and go by that to order an engine (IMHO)
or better: go by the engine that's rotting in your backyard.
MUCH better: fix that one

'sid

 

[rhinocharg]

lots and lots of fiddling to mount a predator (or any industrial engine) to a kart that came with a gy6.

get a gy6 I say.. less hassle more power (and just as chinese)
make sure to buy the correct one though, they all look alike but are NOT
(two different case sizes, laying or standing cylinder and several different PTOs and IDk how man different mounting patterns and additionals (like inbuild reverse and such))

find the manual and go by that to order an engine (IMHO)
or better: go by the engine that's rotting in your backyard.
MUCH better: fix that one

'sid

Thanks Sid. That was what I thought. Good to know there are many differences. I'm thinking I should put the stock motor and trans in and see what it does first


Sent from my iPhone using Tapatalk

 

[itsid]

well to be honest with you,
if you say it sat outside for a few years.
I do not think it's a good idea to try to power it up just yet.

I'd rather have you do some very light inspection first
remove spark plug, check the cylinder with a flashlight
just to make sure there's no water in the cylinder before you try to turn it over.
if it's dry.. put a few drops of oil in it (drops!!) and leave the spark plug out..
turn it over by hand if it has a kickstarter (by foot that is.. but slowly) if all you have is e-start.. then so be it

if it does turn over, install the spark plug again and change the oil
(yes, you really should do that no matter if it's running afterwards or not)
And once that's done, fresh gas and see if you can start it up.

And if it tries but just doesn't want to somehow,
it's the next step (check for fuel/spark and compression,
clean the carb and once it's running we take care of your transmission issue.

That will very likely be solveable (it's basically just a cvt and some cogwheels, nothing too fancy... )

'sid

 

[Hellion]

...and sadly it has sat outside the last couple of years...

Hopefully it had a tarp on it at least. Direct exposure to sun, wind and rain causes early death to go karts and minibikes....

 

[bob58o]

Where are you located? Asking about Predators and referring to engine size in milliliters? It's just that CC's seem to be much more common?

 

[rhinocharg]

It had a tarp at times. Other times it had some good tree cover The engine I have that is reportedly stock has been stored inside and looks brand new. It has an electric start and I have turned it over in the past. It has a kick start cog but my friend who took the old motor didn't leave me that or any of the bolts to put it back in.

Additionally he didn't leave me the two bolts to mount the intake. I'm tempted to walk the whole **** motor into Home Depot and start matching stuff up to it (unless anyone knows those bolt specs offhand). I'll probably have to get a kick start arm off eBay or something.


Sent from my iPhone using Tapatalk

---------- Post added at 07:19 AM ---------- Previous post was at 07:18 AM ----------

well to be honest with you,
if you say it sat outside for a few years.
I do not think it's a good idea to try to power it up just yet.

I'd rather have you do some very light inspection first
remove spark plug, check the cylinder with a flashlight
just to make sure there's no water in the cylinder before you try to turn it over.
if it's dry.. put a few drops of oil in it (drops!!) and leave the spark plug out..
turn it over by hand if it has a kickstarter (by foot that is.. but slowly) if all you have is e-start.. then so be it

if it does turn over, install the spark plug again and change the oil
(yes, you really should do that no matter if it's running afterwards or not)
And once that's done, fresh gas and see if you can start it up.

And if it tries but just doesn't want to somehow,
it's the next step (check for fuel/spark and compression,
clean the carb and once it's running we take care of your transmission issue.

That will very likely be solveable (it's basically just a cvt and some cogwheels, nothing too fancy... )

'sid

That's what I was hoping on the tranny.


Sent from my iPhone using Tapatalk

 

[itsid]

since it's chinese.. bolts will be metric (99.9% certain)

so crack out your digital caliper, and measure the inside of the boltholes (and their depth) with is set to metric units.

round up to the next integer (above 6mm likely next EVEN integer) and then you'll have the bolt size

length depends of course on what it's bolted to... depth + attachment in mm
rounded down in steps of five mm (10, 15, 20, 25, 30 etc.)
and there you go, you likely know the correct boltsize.
(very few exceptions unlikely to be encountered here )

'sid

 

[rhinocharg]

since it's chinese.. bolts will be metric (99.9% certain)

so crack out your digital caliper, and measure the inside of the boltholes (and their depth) with is set to metric units.

round up to the next integer (above 6mm likely next EVEN integer) and then you'll have the bolt size

length depends of course on what it's bolted to... depth + attachment in mm
rounded down in steps of five mm (10, 15, 20, 25, 30 etc.)
and there you go, you likely know the correct boltsize.
(very few exceptions unlikely to be encountered here )

'sid

The mounting bolts should be easy enough. I found one that matches the intake. I'm thinking I should buy a new carb. The old one is missing the cap on the top.

Sent from my iPhone using Tapatalk

 

[KingCobra]

Using a vinyl tarp is better than nothing but it can also trap moisture inside. It's best to use a car cover or motorcycle cover that can breath but keep moisture out. I've seen too many tragedies found under plastic tarps.........

 

[itsid]

KF PZ series...
7bucks plus shipping on alibaba...
(~14 with free shipping on ebay as well)

yeah, replace it!
it'll be nearly impossibel to just get the top for less than that tbh.
and you'll need a gasket kit, needle and spring plunger and IDK what else is missing..

But keep in mind that you need the exact body type
and size (bore)
You will also likely need a few Jets to get the correct size for your engine but that'd be another 7 dollars perhaps.. so yeah.

'sid

perhaps this one's already correct:
http://www.ebay.com/itm/19mm-Carbur...00-110-125cc-ATV-Quad-4-Wheeler-/292064362175

 

[rhinocharg]

KF PZ series...
7bucks plus shipping on alibaba...
(~14 with free shipping on ebay as well)

yeah, replace it!
it'll be nearly impossibel to just get the top for less than that tbh.
and you'll need a gasket kit, needle and spring plunger and IDK what else is missing..

But keep in mind that you need the exact body type
and size (bore)
You will also likely need a few Jets to get the correct size for your engine but that'd be another 7 dollars perhaps.. so yeah.

'sid

perhaps this one's already correct:
http://www.ebay.com/itm/19mm-Carbur...00-110-125cc-ATV-Quad-4-Wheeler-/292064362175

Thanks Sid. I'm going to look for one in Amazon. So do I measure the note and look for the same parts it maybe just a part number?


Sent from my iPhone using Tapatalk

 

[rhinocharg]

It was supposed to say measure the bore. There is quite a selection on Amazon.


Sent from my iPhone using Tapatalk

 

[itsid]

it'll be a PZ19 (19mm bore) anyways.
I don't see what measuring will do for you *shrugs*

just buy the cheapest and worst case it has the parts to complete the original one

'sid

 

[KingCobra]

You can buy a new GY6 engine w/ trans, very reasonable but look like you will need more than that. Too bad I don't need one as there is one on Craigs List locally. Don't remember how much but very cheap.

https://gainesville.craigslist.org/snw/d/gy6-150cc-engine-and/6329109195.html

https://jacksonville.craigslist.org/mpo/d/gy6-engine-and-performance/6348267762.html