Hello all,

First time ATV owner: I got a Katerra crius kmv250 gifted to me (don’t know year it was made though)
It starts and runs fine on lvl ground but bogs down going uphill.

Might be the fuel being in the carb for too long?

Some questions I have for doing maintenance on it:

1. Is someone able to send me a link to the manual?
2. Where does the line from the tank cab go to? It’s attached to the cab but other side is loose
3. Left side Engine block: there is a line attached to it hair way high on a 90degree nozzle but not connected on the other side. Where does it need to go?
4. When I look online for a similar Baja ATV model, I see that they come with a round air filter in a case underneath the seat. Mine doesn’t have that. What’s the alternative air filter location (older model?)

See pictures attached.

I very much appreciate your help.

 

Firstly it looks a lot like a Kawasaki KLF engine, so may be a clone of it. Old fuel may be a problem, or the carb may need a clean out.
1 Few Chinese makers ever bothered with manuals other than basic instructions, if it is a Kawasaki clone, buy the manual for that.
2 What is a tank cab? If you mean cap, it is the breather and ends anywhere pointing down so rainwater can't get in. There is often a hole in the plastic trim that you can poke the end through.
3 That is an engine breather and usually goes into the air filter box.
4 Looks like someone has removed the filter box, if you don't intend going through deep water, a motorcycle pancake filter on the carb, would do the job. Engine breathers could also suck dirt & water in though.
On reflection, 250 Yam engines also look similar, worth checking both Kawasakis and Yams to see which looks nearest.

 

thanks for the tip with the Kawasaki engine. How can I make sure it’s one without removing it? Is there an ID plate or something on it to identify it?

If the two houses are both breather lines, then the way they are attached currently solid be alright. Both are pointing down

I suspect bad fuel as well, since the ATV was standing unused under tarp for a while and probably no stabilizer in the tank.
any tips on cleaning the carb! That would be my first time.

The Carb has one of these motorcycle air filters attached that you have mentioned. someone must run it that way for a while already.

 

thanks for the tip with the Kawasaki engine. How can I make sure it’s one without removing it? Is there an ID plate or something on it to identify it?

If the two houses are both breather lines, then the way they are attached currently solid be alright. Both are pointing down

I suspect bad fuel as well, since the ATV was standing unused under tarp for a while and probably no stabilizer in the tank.
any tips on cleaning the carb! That would be my first time.

The Carb has one of these motorcycle air filters attached that you have mentioned. someone must run it that way for a while already.

 

If someone local has an old Kawasaki 250 or 300 Bayou, compare engines, same with Yamaha 250s, Google pictures of both if you can't find an actual bike to look at. Chinese makers don't always copy exactly though, so don't expect everything to be the same.
As I wrote, the crankcase breather has to be above any possibility of being below water level if you are fording rivers etc.
I remove the carb from the manifold, usually taking fuel pipe off too, if you can then get at the float bowl screws, undo them, check the float bowl for water and remove the jets that you can now get at, blow them and the holes they came from out with compressed air, refit jets and bowl. You don't usually have to take the carb off the choke and throttle cables to get at the bowl, though you may need to remove the tank to get at the carb. Do not alter any needle settings. If there is much dirt or water in the carb, you may want to drain the tank and refill with fresh fuel.