1993 Suzuki King Quad 300 bucks and farts like crazy

[hardcastle]

My friends KQ 300 starts fine and runs, as soon as you put it in gear and try to accelerate its bucks and farts like crazy, not moving... I cleaned carb and it worked good for 1 day... now back to same problem.... could it be such as a bent valve????

[Ajmboy]

Did you ever get this fixed? I would check/replace the air filter and fuel filter a start and the rebuild the carb. However, depending on your budget, I would just buy and slap a new one on there. You can get them for under $50 on Amazon

 

[Uglyside38]

On 10/8/2023 at 9:20 AM, Ajmboy said:

Did you ever get this fixed? I would check/replace the air filter and fuel filter a start and the rebuild the carb. However, depending on your budget, I would just buy and slap a new one on there. You can get them for under $50 on Amazon

 

I know this post is a couple months old, but have you had good luck with these carbs? I had bought a cheap one on Amazon awhile back for a mower, and it seemed ok for the short time I had it...🤷🏼‍♂️

[Ajmboy]

10 hours ago, Uglyside38 said:

I know this post is a couple months old, but have you had good luck with these carbs? I had bought a cheap one on Amazon awhile back for a mower, and it seemed ok for the short time I had it...🤷🏼‍♂️

I have actually, but I only buy ones with a high level of good reviews. I have found that on more than one occasion where I’ve had a part failure from something purchased on Amazon, I should have read the reviews!

[kawasig]

I just had a Suzuki lt 230 quad runner do pretty much the same thing. Riding and bouncing around stirred up junk in the gas tank. I flushed it and it was fine for a couple weeks. Started doing it again , so I flushed the tank again and got more junk out of it. This time I put a inline filter in it. No more issues. 

[kiriyaaoi]

On 12/31/2023 at 12:41 PM, Uglyside38 said:

I know this post is a couple months old, but have you had good luck with these carbs? I had bought a cheap one on Amazon awhile back for a mower, and it seemed ok for the short time I had it...🤷🏼‍♂️

You always will want to double check the jet sizing and float level on these. I picked up a Motoku for my 02 Quadrunner 250 (with the BS29SS) and everything was wrong. Had to replace the pilot jet with a #15 (had a #40 in), main with a 67.5 (original was unlabelled), and adjust the float level (came at 12.5mm, these spec 17.1).  I'm fairly convinced they just are configured at the factory to run pig rich for some reason.

[quadmaniac]

On 1/2/2024 at 7:29 PM, kawasig said:

I just had a Suzuki lt 230 quad runner do pretty much the same thing. Riding and bouncing around stirred up junk in the gas tank. I flushed it and it was fine for a couple weeks. Started doing it again , so I flushed the tank again and got more junk out of it. This time I put a inline filter in it. No more issues. 

That's a good point that often goes underdiagnosed with older quads, especially if they are sitting around. flush teh tank and change the inline fuel filter.

[Slitzer]

Sounds like lean condition/fuel problem.

Fresh fuel?

Any debris inside the tank, filter on the way to carburator.

Jets cleaned manually with compressed air or ultrasonic cleaner?