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Hey guys, im new to these small four stroke engines but not engines in general. I got this quad from a friend of mine. Long story short, it ran fine before it was stored. The quad has been sitting for almost 6 maybe more years. We tore the carb off and went through it did not replace anything but just did a full cleanup. The fuel was junk and the bowl was quite varnished. Anyhow, fast forward and i have it all back together, runs like a dream when driving it hauls butt, but when it idles there is some rpm fluctuations maybe up and down a couple hundred rpm. The real issue is the back firing through the intake. Every maybe 8 seconds it pops pretty hard and i believe thats what split the carb/intake boot. Ive repaired that temporarily to get the quad going and its air tight.
Whats ypur thoughts on the bacm firing through intake? I have check the cam chain and timing, tension is good and the timing marks align correctly, the one tiny jet in the fuel bowl was completely clogged and the screw below it seems buggered a bit aswell. What does that tiny jet do in the circuit. I was tempted to buy on of those cheap ebay carbs to see bit i have been warned they can cause more problems than i already have!
Any thoughts, im going to grab a rebuild kit. What else could it be aside from the carb?
Thanks guys
Sent from my SM-G935W8 using Tapatalk
Whats ypur thoughts on the bacm firing through intake? I have check the cam chain and timing, tension is good and the timing marks align correctly, the one tiny jet in the fuel bowl was completely clogged and the screw below it seems buggered a bit aswell. What does that tiny jet do in the circuit. I was tempted to buy on of those cheap ebay carbs to see bit i have been warned they can cause more problems than i already have!
Any thoughts, im going to grab a rebuild kit. What else could it be aside from the carb?
Thanks guys
Sent from my SM-G935W8 using Tapatalk