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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 16:51:20 |
Posts: 107
chattanooga, Tennessee , USA
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I posted all the,,,, below,,, befor .
Ok i went riding again after having tested all battery voltage .
This time My KQ ,at about 4 hard trial, hours began its problem of losing throttle again.
It will go, but it wants to sputter and die , it back fires alot and wont go if i gun it.
Read the below befor commenting.
Ok this time i pulled the VDI and stuck in the ECU and it did not help as much.
Helped a little but not much.
I ran stock ECU 10 miles back to the trail head.
So anyhow im thinking i have a fouled plug and at the end of the trail i figure ill put the VDI back in thinking it would not run at all
BUT alas , poof, its back to normal pulling like and animal.
This was my previous post.
Ok , this should be easy as im running a stock 2009 KQ with VDI.
It ran perfect for about 1000 miles.
Now at about the 30 mile mark on each ride it loses power at the starting line , no punch what so ever.
I pulled the plug , cleaned the filter everything.
No change . after the bike sits for a few hours it goes back to action ,running great.
Today it happened again about 33 miles into a ride it suddenly lost punch off the starting line.
This time however i put in my old ECU and immediatly problem solved .
Unfortunatly im spoiled as dirt by the awesome increase in pow pow by the VDI.
I did nothing to lower battery , no winching nothing.
I am not running m109 YET , I cant wait to try that.
So why would a total stock new KQ750 get this symptom ?
My bike runs great but each day at about 35 miles i lose all the punch off starting line.
It will still run and i actually did 28 nervous miles like that.
But now after pulling the VDI and putting in the old ECU im baffled as to why this is happening.
And this comes right at the time i was about to order m109 and install a swamp series exhaust.
If any one can help please advise me .
Also if anyone knows a good mechanic near Chattanooga Tennessee please let me know.
Thanx Jerr
Ok im really baffeled now .
I pulled the plug again and it had an oily appreance at the washer but looked good otherwise.
This problem is so CRAP.
Everytime im about 4 hours into a hard ride she starts stalling and back fires alittle when gunned or just loses pedal.
PLEASE HELP
I need a good local mecanic as my dealer keeps saying aww just wait till it does it all the time then i can fix it.
Crap
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 17:02:07 |
Posts: 107
chattanooga, Tennessee , USA
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This is the link to the previous thread .
Im so frusterated please is there anything that comes to mind ?
http://www.nyrocatv.com/forum.cgi?viewcat=4&viewtopic=27595
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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TNRancher420AT
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 17:24:29 |
Posts: 166
Corryton, Tennessee , USA
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Sounds like the VDI might have a problem with heat now that the summer temps are kicking in.
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Joel
Red 2009 Rancher 420 AT with EPS - 25" Maxxis Bighorns, Maxxis 4x4 wheels, Warn XT25 syn. winch, Kimpex box.
FOR SALE - 2007 King Quad 700 - Very clean with 1177 miles.
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 17:45:12 |
Posts: 107
chattanooga, Tennessee , USA
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Boring post huh.
But its for real .
Ok also , my 450w VDI is running superb all day everyday.
Now, one more thing i like to go fast and corner hard so instead of raising my 750KQ i want to lower it .
I hear some wheels will squat the tires a bit could yall also comment on that.
I Installed precision racing damper in the 450 and wow. What a ride my wife loved it.She got complacent real fast to.
So complacent ,as soon as she got on my 750 with no damper , she flipped it OUCH.
The precision racing damper just takes all the punch out i highly reccomend it if you can afford it.
Its a 15 min install to.
Anyhow i can handle all the more extreme trails and hills easier on her 450. Its only a inch shorter but it cornors better and is less prone to flipping.
We run Maxis bighorns 25's on both but the 750 is like riding a lion or a bucking bronco on steep hills with rocks.
Id like to squat it out a bit .
So gals and guys what do yall suggest on that ?
We are using stock wheels at the moment on both rides yet the 450 is still shorter.
So what wheels might squat out the tires?
Anyhow id pay good money for someone to help with my stalling problem , which never happens untill about 4 hours of hard riding .
OR
Perhaps 30 miles maybe 40.
Lots of stops ,Playing in holes or on hills , ive checked everything.
Its usually really hot over all when it starts but no fluid leaks and clean radiator.
Cooling system checked well but i am installing a guage now.
Im out of options. Except to get nasty with the dealer and then he will proably say its all my fault with the mods .Hes a real crapo dealer.He basically want even talk about it to me.
This bike is only 1000 miles old and was bought just 2 months back NEW.
I installed the VDI with less than 100 miles on it .
Ive got insurance to.
It started the problem in less than 200 mnore miles and i cant find a solution.
Its not smoking geese everything checks out .
So we thought it was a solder connection in the VDI but this weekend test with stock ECU would seem to suggest differently.
What do i do ?
Sorry for the long post but i need advice badly.
Dark
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 17:49:59 |
Posts: 107
chattanooga, Tennessee , USA
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TNDIVER DOWN
"Sounds like the VDI might have a problem with heat now that the summer temps are kicking in."
Bro yeah thats what me and Lyle said .
But check it , i pulled the VDI and installed the stock ECU and it ran alittle better but not good at all.
It was sputtering and back firing when gunned.
It would slowly cruise on flat terrian ok but thats it.
Ok I got back to trail head installed VDI and it jumped back to life
So stock ECU did not help problem this time.
But whats so weird is when i got back to the trail head only one hour later and then i plugged the VDI back in and it ran perfect.
Now is that confusing ???
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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Rikter
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 19:05:55 |
Posts: 277
Calgary, Alberta , Canada
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Is the fuel tank on a vacuum when this happens? Check it by pulling the filler cap when it happens. Fuel pump could be heating up & delivering low fuel pressure. Could try rigging in a pressure guage (100lb) & monitor. Radio shack has a product called "Freeze it" it is an areosol can that when sprayed on electrics they get cooled right down. Try that on a few items such as VDI, relays, Coil etc. This is a reproducable problem so the thing to do is get itt all stock, ride till it happens Then start with troubleshooting. Use a note pad & write stuff down. Then start calling the Suzuki representative for your area. Dealer won't talk to you? That is Bullc&%%. You paid him & suzuki, they have some responsability to resolve this, don't take it from the dealer.
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2005 Twin Peaks 700, ProCircuit 496 Pipes, 2" lift, VDIbox, Perfex & Richochet skids, Port & Polish Heads, Stage 1 hotcams, Unifilters, Maxxis Bighorns
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 21:43:49 |
Posts: 107
chattanooga, Tennessee , USA
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Thanx , my thoughts are close to that.Im out of most other options anyhow.
I keep thinking , why would it keep running at all ?
Because everything is almost ok.
Why would it backfire more?
Because its getting to much fuel
AND ,OR
Its not burning the fuel it gets , which is more likely.
Three, Why does it die out when idling but only after 3 or 4 hours of hard riding ?
Its Hot.
Four ???
What could happen on a new bike that could cause this problem only when its been riding 3 plus hours ?
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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Glenlivet
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 22:38:36 |
Posts: 3581
Hope, British Columbia , Canada
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"Why would it backfire more?
Because its getting to much fuel "
It's a popular misconception that backfiring means 'too much fuel'. It's commonly a sign of overly lean operating condition.
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KingQuad
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QMAO
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-14 23:12:55 |
Posts: 322
Ponoka ,, Alberta , Canada
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There are several posts here that state after approximatly a 3 hour ride quads lose power. They start to miss,stumble,run rough and no power. I have experienced this also.
I know first hand that my fuel suction screen is clean. the TPS is right on -oo. I have checked air filter and the spark plug. Dos anyone have any reasons as to why this is happening?
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2005 King Quad, VDI, injector, Twin Air filter, Grease zerks in A-arms, modified stock muffler, custom Front bumper, 27"x11"x12" Maxxis Zilla's, winch, hand and thumb warmers.
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evilking
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-15 07:40:34 |
Posts: 670
keene, New Hampshire , USA
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Just a shot in the dark but I could be a problem with the coil or wire....maybe. That's a tough one though
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05 yellow king,VDI,iat relocate kit, ITP ss112 rims,ITP ATRs,yfz & 450R shocks,HID pod & lower lights,LED tail light,
four piece grill kit,powermad handguards,yellow camo graphics,epi clutch kit,coop mod 1&3( 3mm),RG castor mod,carlisle 437 belt,twinair filter,snorkel removed,grease zerks,procircuit pipe,all balls bushings,m109r injector,NGK iridium plug,NGK racing plug wire.
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QMAO
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-15 22:21:37 |
Posts: 322
Ponoka ,, Alberta , Canada
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It might be a coil problem  . I just spent 3 hrs. with my quad.
I started out going for a 1/2 hr ride. Just a simple ride down the road. cruising speed 75 khp, no mud everything dry.
By the time I got back to the garage my quad would barely run with the VDI.
I then put the stock ECM in and it did run like normal again.
I switched back to the VDI again, it did not run as good as the stock ecm.
from here my quad kept running progressivly worse. I checked the battery, it was good, I checked and cleaned every connection under the seat, still the same. I checked the TPS, it was good at -oo.
It does seem to be an electrical issue to me.
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2005 King Quad, VDI, injector, Twin Air filter, Grease zerks in A-arms, modified stock muffler, custom Front bumper, 27"x11"x12" Maxxis Zilla's, winch, hand and thumb warmers.
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evilking
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-15 23:50:11 |
Posts: 670
keene, New Hampshire , USA
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maybe I'm wrong on this but doesn't the vdi try to make a more intense spark? Thought I heard that somewhere
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05 yellow king,VDI,iat relocate kit, ITP ss112 rims,ITP ATRs,yfz & 450R shocks,HID pod & lower lights,LED tail light,
four piece grill kit,powermad handguards,yellow camo graphics,epi clutch kit,coop mod 1&3( 3mm),RG castor mod,carlisle 437 belt,twinair filter,snorkel removed,grease zerks,procircuit pipe,all balls bushings,m109r injector,NGK iridium plug,NGK racing plug wire.
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Glenlivet
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-16 11:07:23 |
Posts: 3581
Hope, British Columbia , Canada
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I know it has been mentioned, but it hasn't been answered: Have you people who are experiencing the bad running after several hours tried loosening the gas cap when this happens?
Excessive tank vaccuum could result reduced fuel rail pressure and could cause the symptoms reported, backfiring, loss of power, stalling...
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KingQuad
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shorthair
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-16 11:22:17 |
Posts: 849
Clarkston, Michigan , USA
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That's my thought as well. The vent line is in a bad place and gets pinched. I took care of that and no more excessive tank pressure.
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96 king and a 07 king 700 camo/coop45 -1.5mm shim/cvt drain hose/warn reverse light with over ride/fan over ride/JT temp guage/Twin air/Werx fuel filter/air box adheasive aluminum heat barrier/VDI/IAT/fuel vent mod/stearing grease mod/suspension grease mod/caster mod/shift gate mod/warn xt 30 winch/powermadd hand guards/emgo mirrors/OEM bumpers/sti-xb-40 wheels/ITP Terracross R/TXD tires
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QMAO
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-17 21:17:36 |
Posts: 322
Ponoka ,, Alberta , Canada
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Yes I have loosened the gas filler cap
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2005 King Quad, VDI, injector, Twin Air filter, Grease zerks in A-arms, modified stock muffler, custom Front bumper, 27"x11"x12" Maxxis Zilla's, winch, hand and thumb warmers.
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-19 10:27:23 |
Posts: 107
chattanooga, Tennessee , USA
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UPDATE
Ok , last night i finally had some time and i was able to get the bike to start the problem in 12.7 miles which sux.
This is how it went , I was just up at our local rockt rutted hilly area and it was really Hot.
I was praticing going over deep ruts and picking through boulders in low.
So at 12 miles it began to lose power and all the usual.
I loosend the cap and tried to drive it no luck.
Ok the bike seemed hot but the radiator was running only once every min or so, i had checke3d all fluid levels as well.
So i took the bike out on open road where it was alot cooler and just ran slow long down hill straight aways to see if it would clear up .
At first it was alittle ruff running sputtering and such but after 2 miles of 40 MPH crusing down a shady paved down hill road it was totally back to normal.
Leads me to think something is heating up .
Im really frusterated this bike has less than a thousand miles and its only 2 months old .
What should i do next ? 
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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Glenlivet
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-19 10:52:39 |
Posts: 3581
Hope, British Columbia , Canada
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PM sent
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KingQuad
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-19 11:29:47 |
Posts: 107
chattanooga, Tennessee , USA
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OK Thanx for that info.
Hey if you remember changing out the VDI to the stock ECU did not help last few times.
However when the problem first occured it would cure the problem immediatly.
I had a bike racer tell me to run low octane gas , he said in summer heat this is very common and can be cured by just running low octane.
Ill be on that as well as everything else.
Its starting to point towards the coil huh?
Now he said he thinks i have garbage in my tank and in my filter as well .
So now i have to take the dang tank off , Gas bath.
This has sucked so bad but i appreciate all the help with luck and yalls advice ill hve it sorted in no time.
I just dont have any time to work on it.
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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darkstar
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-21 16:59:12 |
Posts: 107
chattanooga, Tennessee , USA
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Quick update, ran 40 miles and it never happened.
Ive dont nothing to correct it.
I had some cooler spray ready but it ran like a champ in 90 degree heat.
What gives?
I was expecting no more than 10 miles and around 40 i got tired and headed back to the shop.
Ittl proably wait till im at a killer ride 
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King Quad 450 with VDI and precision damper
on Maxis big horns 25's Camo
King Quad 750 with VDI on bighorn 25's
Dalton clutch and precision damper Camo
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shorthair
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Subject: The problem that wont go away with my new KQ PLEASE HELP | 2009-06-21 21:46:00 |
Posts: 849
Clarkston, Michigan , USA
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I know it's a pain in the butt but check the fuel tank vent valve and reroute the hose.
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96 king and a 07 king 700 camo/coop45 -1.5mm shim/cvt drain hose/warn reverse light with over ride/fan over ride/JT temp guage/Twin air/Werx fuel filter/air box adheasive aluminum heat barrier/VDI/IAT/fuel vent mod/stearing grease mod/suspension grease mod/caster mod/shift gate mod/warn xt 30 winch/powermadd hand guards/emgo mirrors/OEM bumpers/sti-xb-40 wheels/ITP Terracross R/TXD tires
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