Hey guys I am wondering if the 650i is cold blooded due to the dual carbs. And the 4x4 system? Going to watch the daytona 500



THANKS

 

Use the choke, and let it warm up for a few minutes. Havent any problems with mine, and i had mine out 2 wks ago when the air temp was -1. Even if it did have EFI, you need to let it warm up some, so as to get the oil flowing to all parts of the engine

 

When I start mine I have to leave the choke on for a good 4 to 5 minutes and rev the engine. If I let the choke down after 2 minutes it stalls. I've learned to just be patient and give it at least a good 5 minutes to warm up.

 

I let mine idle for a bit with as much choke as it takes to keep it running just to minimize the fouling. After a few minutes it will run at a steady idle with no choke. This is in weather at about -15 to -20 celcius. The only problem I have with mine in the cold is the rear brake cable has a low spot that water sits in and will freeze up. Just have to push the water out with some WD-40 and lube it up.

 

Yes, most Kawi V-Twin quads are jetted lean, mainly to meet federal emission. In most cases, the correct way to richen for better driveability is to raise the needle jet or to replace with a richer one if there is no engine mods like filter or exhaust.

 

Hyashi - Moving the needle clip down one notch will help with the starting issues? I don't seem to have any real trouble where it is now but that is good to know. I am at about 2200ft elevation, I was wondering if you could tell me what I should have for mains on my machine and what kind of elevation range they would be good for.

 

Gardingh,
Yes, lowering the clip means raising the needle which will allow more fuel to flow. However, needle jets have nothing to do with the starting. Their primary function is from low to midrange throttle. If you have a hard starting problem, you need to look else where such as fouled plugs, tight valves, choke not working, weak spark, etc.

If you are at 2200 ft, you shouldn't have to do anything (I am 5500 ft and didn't do any) even though Kawi says you need to lean the jets one size down at first 1500 ft. What it means by one size down is that if you have main jet size of 138, then try the next available one size smaller which could be 136 or 135 (Kehin). By the way, Kawi's V-twin carbs are jetted differently between front and rear on many models if not all, so make sure you check both main jet sizes - do not assume they have the same size. I

Here is how you read your plugs.
Install fresh plugs. After warming up the egnine, run the quad at WOT in an OPEN SPACE for about 5~7 minutes and remove the plugs when safe to touch. Read the color of the tip of the plugs. I've seen many guys who got fooled by sticking chokes that made them to think they are running rich. So, it is a good idea to check to make sure your choke plungers are not sticking, allowing exgta fuel to the engine. Good luck.

 

Thanks, I have fooled around with jetting a little on my sled(just main jets) but never on a 4 stroke. I understand most of what is going on and have the basic idea behind tuning, I think.... Please correct my if I have the wrong idea.

1. Take a good hard WOT run and shut down right away.
2. Check plugs.
3. Adjust mains as required. Go back to step 1.
4. Run 1/4 to half throttle for a few minutes.
5. Check plugs.
6. Adjust needle as required. Go to step 4.
7. Idle for a few minutes.
8. Check plugs.
9. Adjust air screw as required. Go to step 7.

Plugs should be a "tan" color, correct?

I always ran my sled a little fat just to be safe as our riding area was about 40 miles into the mountains and I had no desire to be towing my machine out.


Is there an easy way to get at the carbs and plugs on my brute? I haven't had the plastic off this machine but that looks to be the only way to get at anything on this machine. Is it necessary to check the wash on the piston as well or is this more of a 2 stroke thing?

 

In a magazine they tested the BF650 and went 8000ft with a little trouble. It sounds like it the carbs have to be taken care a lot. I mean I want a atv to ride and not play with the carbs. I never had a kawasaki 4x4 I had a bayou 220. So anyway the mag said you have to move 5mph to engage 4x4 will it take a while to engage? And will I have to do work to the carbs in the future? Heard a lot of backfiring complants. I will be getting an 06 leftover. So will it be a problem

 

i put over 6000 kilometers on my 700 and i ride all year around and i find when its cold i put on the choke and start it up then when it startes to sputter with the choke on i turn it off and turn up my idle screw and let it run on fast idle for a few minuts then i turn the idle back down and go, i never had a problem with the cold.
i just posted some pics last night of me and a bunch of guys riding in the snow and it was -5c and there was no issues with anyone uf us.
there was 2 660 grizzlys 2 700 kawis 1 450 kawi 5 hondas from 350s to the 500 rubicon and none of us had any trouble with the cold.
check out my pics and see for your self.