sick 700 king

[crisscross1]

OK guys, any one with cheaper idea. I took my quad to mountain toys and they said it wont idle when it gets hot because the compression is to low, 110 wot and 90 sitting, so I'm having them check the valves settings first. They say it will cost about $1500 just for the cylinder and piston to be rebuild. Seems very costly and the quad only has about 1600km on it. What kind of junk are these machines. Any help or ideas would be appreciated, thanks.

 

[Murminator]

If it is not burning or using a bunch of oil I would say it's a valve adjustment issue. When was it done last? If after the valve adjust still runs the same get them to do a leak down test that will determine if it needs an engine or not.

*** I just reread your post if starting good the runs like a bag of crap when warm points more and more like a valve adjustment easy to do yourself instructions are posted online

 

[crisscross1]

thanks for the info, the valve adjust was done around 250km and its about 1600. I never ever done this before, it is still at the dealer. the engine over heated last year because the rad got plug with mud and quit a couple times even after i cleaned the rad. maybe i fried the engine. It doesn't really use any oil, i haven't had to top it off yet, but i do notice a little blue smoke when i rev it up. did i mention it stumbles and sputters at about 3/4 throttle also.

 

[atver]

If you got water or mud in it last year its probably done. Matt will not stear you wrong.

 

[crisscross1]

no mud or water in it ever, compression is low and he says to dump it and buy a Polaris. Suzuki's suck, they have week engines. I don't like that idea, thanks. I would have thought lower compression, less power but not being able to idle, just doesn't make sense to me. What do I know I'm just a rider.

 

[Bandit]

Just went through this with mine. It was using a little oil so I tore it down and redid the rings. Easy test to find where the low compression is coming from. If you can, warm the engine up, then do a compression test. About 145psi is normal.

If lower than that squirt a little motor oil into the cylinder through the spark plug hole and retest. If the compression comes up, it is the rings. If it stays the same, then it's the valves.

To do the rings in mine it cost about $100 and a few hours to do it. These are actually really simple engines to work on. If you were closer I would say to bring it over and I would do it for you. Just need new head gasket, base gasket and rings. Valve cover gasket can be re-used. Glaze break the cylinder and your good to go.

As for the not idling with low cylinder pressure, that is kinda strange. Mine was at 90psi on the compression test and it still started and idled fine.

 

[ttpowersports]

OK guys, any one with cheaper idea. I took my quad to mountain toys and they said it wont idle when it gets hot because the compression is to low, 110 wot and 90 sitting, so I'm having them check the valves settings first. They say it will cost about $1500 just for the cylinder and piston to be rebuild. Seems very costly and the quad only has about 1600km on it. What kind of junk are these machines. Any help or ideas would be appreciated, thanks.

they are usually a pretty tough machine. but i agree do a compression and maybe its just rings. also if you have to change out the cylinder you can go to a 750 cyl piston and rings...bolts right up....680.00 in total parts .and it is about half of the 1500 course thats not labour...

piston- 49.99
cyl- 436.99
etc....

 

[ttpowersports]

also have one here for parts and 05 with 10,000 km on the engine and it runs like a top.

let me know

T

 

[sumx54]

they are usually a pretty tough machine. but i agree do a compression and maybe its just rings. also if you have to change out the cylinder you can go to a 750 cyl piston and rings...bolts right up....680.00 in total parts .and it is about half of the 1500 course thats not labour...

piston- 49.99
cyl- 436.99
etc....

Thats a really decent price for that kind of displacement gain.

 

[ttpowersports]

Thats a really decent price for that kind of displacement gain.

yep thats new factory parts...

 

[munhoez]

they are usually a pretty tough machine. but i agree do a compression and maybe its just rings. also if you have to change out the cylinder you can go to a 750 cyl piston and rings...bolts right up....680.00 in total parts .and it is about half of the 1500 course thats not labour...

piston- 49.99
cyl- 436.99
etc....

Is the mapping the same? Do u need the 750 ecm? Sure it will bolt rite up, but will it be lean when u run it?
I've heard reports of guys tryin 750 ecms in 700's.

Just a thought, get that dealer to check tps alignment, fuel pump pressure and amount. Most shops have a boroscope, i always show my cust if the cyl is scored.

 

[ttpowersports]

Is the mapping the same? Do u need the 750 ecm? Sure it will bolt rite up, but will it be lean when u run it?
I've heard reports of guys tryin 750 ecms in 700's.

Just a thought, get that dealer to check tps alignment, fuel pump pressure and amount. Most shops have a boroscope, i always show my cust if the cyl is scored.

what we did was adjust the tps so its at the richest setting and its still abit lean on the top but not too bad...it doesnt pop... ideally a power commander would be the ticket...

and ya a borescope should tell you if you have any issues, with the piston etc on your stock 700

 

[Shredder]

also have one here for parts and 05 with 10,000 km on the engine and it runs like a top.

let me know

T

There is actually only 1000 kms on that engine Terry.

 

[crisscross1]

is glaze break to put the cross hatch back into the cylinder, because that was my next question. How do you put the cross hatch back into the cylinder if you cant get bigger pistons. The cylinder would be smooth and the rings would not be able to seal against the wall.

 

[crisscross1]

I like that price and the idea that I might end up with a better performance machine. I will keep this in mine. How would I determine if the cylinder is garbage, just by looking at it or do I go and buy a tool to measure the hole.

 

[crisscross1]

Bandit yours has only 90 and mine has 110 psi this is what I find unreal, and hard to believe that the problem is compression, they checked the valves, tps, compression and tested the electrical components. They said we need to start to eliminate things and were sure it must be because of compression. It has never used any oil that I would need to top off, and really doesn't smoke very much, hard to see the smoke. It will idle just fine when its cold and starts up about 2 cranks of the engine. If the compression is fuc... it should be hard to start. Even when it's stalls it will start right up again but wont idle at that point but will drive like it always does. any other ideas would be much appreciated thanks.

 

[crisscross1]

Terri if it is to lean wont it burn a hole in the piston, and did you read the remark and or question that I left for the Bandit. thanks again.

 

[crisscross1]

Just to let every one know, my quad idles when its hot or cold. I just put a hotter plug in and everything is great. I still like the idea of 750 jug and piston, I just don't know how much more the performance would be, and ideas.

 

[ttpowersports]

UPDATE..........750 CYL... DOES NOT WORK ON THE 700 KING QUAD.... AFTER TWO CYLINDERS AND PISTONS... WE HAVE FOUND THAT THE CRANK POSITION IN THE CASE ON A 750 IS DIFFERENT THAN A 700 ,,,, CYL GETS SCARRED ON TWO SIDES..... DO NOT TRY THIS...............

SORRY FOR THE MIS INFO.. we cross checked all parts and numbers were the same, we call suzuki on it and thats when we found the damn gremlin...

well we tried.... atleast it was on our dime...... so if anyone needs some refurbished 750 cyl.s......lol

 

[crisscross1]

Thanks Terri, that info sucks. I was really looking forward to putting together a better quad. While you are here were do I get 2 1mm spacers for the clutch, as I'm thinking that with the low compression and with the lower gear every thing would be fine. It idles now with the hotter plug and runs not bad.