Search the Community

Hey guys, Im new here but I recently Picked up a '99 Foreman 400 that apparently just had a top end rebuild. It blows white smoke like crazy and ticks/knocks and seems to follow the rpm's. I haven't done to much trouble shooting yet, It starts and runs like a champ and has good compression. I was just wondering if anyone has any suggestions as to where to go. Oh ya the top end rebuild the guy did was according to him he honed the cylinder and replaced the piston and rings, my fear is an ovaled cylinder?

I just bought my first arctic cat. I changed the oil and filter. Now my atv smokes only when u rev the engine. Smoke looks white grey.. slight light blue tint.. when it. Idles it doesn't smoke.. Any body have a clue what is going on. The dealer said it's not the rings.. it has the 700cc suzuki engine..

I have a 2007 honda rancher that bog down the other day and smoke a little after but now runs ok . What could it be . It has 97 compression and it only smoke a little while .

Whats up fellas. My popo smokes a LOT. I unhooked the oil injection (didn't use the block off plate) and premixed, and it still smokes way too much. Would a leaking water pump seal cause this? 1997 sportsman 400L 4x4

hi, i have a problem with this atv, now the motor works but hasn´t force i changed tue fuel pump and continuous equal somebody help me¡¡¡

Hi everyone how are you.I have a 2007 yamaha grizzly 700efi .One day out of nowhere my atv started to run really rough.turns over fine but i need to press the throttle for it to start and hold it here and there so the atv does not stall out.it does not stay idling.its really choppy at low revs and as i press the throttle it gets better almost normal in high revs.i have the original exhaust and i drilled out the baffle in it for better flow and i also installed a stealth exhaust.stealth exhaust is a extra exhaust and it acts like a silencer.i also noticed lots of black smoke coming out the exhaust. i had this set up for 3-4 years with out a problem till about a year ago. i tried lot of things like: new spark plugs,different spark plugs,new k&n filter,ignition coil,adjusted the valve clearance,swapped ecu,checked all fuses,took stealth exhaust off,drained old gas and put new gas in,and so far had no luck the atv is not showing any error codes.if anyone can help that would be great,thank you.

Hello, I have aquired this 4 wheeler from my Dad who is moving to a town home. I will be mostly using if for plowing snow but there will be an occational trip though the woods with the kids. When plowing a pass and stoping the 4 wheeler will kill. It will start up and keep going if I keep my thumb on the throttle a little. My next issue is the other day I took my daughter for a ride on level ground. When I turned around the 4 wheeler sputtered so I gave it more gas, when I looked behind me there was a big cloud of white thick smoke. Not sure where this came from. I would like to try and fix this myself since the repair cost at a shop I'm guessing would be expensive. This is a manual transmission with a foot pedal shift. Would it matter if I started in 2nd gear? Any help anyone can give is appreciated. I'm not affraid to take it apart and put it back together I just need to know where I should start. Thanks, DB

Suzuki 500 4x4 quadrunner Quad misfires, black smoke, runs rough. Dies at idle. Checked jets in carb, flooding, found bad needle, replaced it, readjusted float, Replaced o ring gasket at intake, checked boot, checked coil and found weak spark. Any ideas? Thanks, John

I got my 450 running again after it sat for a year. Fresh fuel, cleaned plug, ect. A little bit of history, when I got it (brand new) it seemed to smoke a little bit. It smelled like gas so I figured it was rich. I don't know if this has anything to do with my problem or not. Now I took it out and rode for 10 or so miles this weekend and it definitely isn't the wheeler it used to be. It is slower and doesn't run as well. Dies at idle usually and is harder to start. And it is really smoking, not at all when I'm on the gas, but all the time when I let off the throttle and it's slowing down. I mean, I think the thing is burning oil like no tomorrow. Does anyone else think this is it? I guess it's probably time for a rebuild. I don't even have 1000 miles on it yet. I would like to bore it and get a high compression piston and cam and such, but I would like some info on that too. Any answers are great, thanks in advance! Oh and I forgot, the heat indicator light has been coming on and off.

Bought a 2008 yfz 450 new 5 months ago and since oil change has been smoking blue smoke, oil. Smokes when revs up but not idling or riding rev up and smokes. Rings or valves?????