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By jscarter32
So this is what happens when a atv sits for many many years.. TIme for a good cleaning. At least the tank looks pretty clean inside and petcock is working now after a good flush.
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By 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????
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By DayBreakJim
So my latest wheeler is a 04 Yamaha Bruin 350. It had all the wires cut from the stator and a few others and no wiring harnesses. The previous owner had them all twisted together and the bike neutral light would come on it would start (hard to start) but then would idle fine. It would die when you gave it gas so I soldered all the wires together and went on inspecting assuming it was a carb issue. Later after the carb was cleaned and adjusted I got this (see video). The bike would want to die anytime you gave it gas and there would be this horrible knocking sound but only when you gave it gas. I was worried it was the rod bearing and electrical still messed up somehow.
Upon further inspection of the wires coming from the stator there was a W/R wired to R and a R wired to W/R. I switched them so they matched per the service manual (W/R to W/R and R to R) and the bike started right up, idled and revved out fine and the knocking noise disappeared. This was the problem the whole time. It was just really hard to tell bc the oem wires coming from the stator were so brown and dirty I could barely make out which was which.
Where the hell did that knocking noise go? and what was causing it?? Just racking my brain trying to figure out what it was so I know for next time but I can't make sense of it... Really thought it was the rod bearing but it didn't make the noise at idle so I was questioning it...Luckily I kept searching!!
20230725_171507.mp4
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By Pumpkinray
Recently purchased an aftermarket fuel pump was defective, right out of the box would not pump any fuel. The old one worked fine. It was just leaking fuel. They sent me a replacement free only to find out that one didn’t work either after several hours of troubleshooting replacing fuel lines, checking fuel petcock only to discover that the small spring in the fuel pump was too tall, not allowing the diaphragm to pulsate the spring, measured 9/16 of an inch tall by placing it in a vice and shutting it down to half inch and reinstalling it back in the pump. it worked perfect this might help someone with the same issue in the future .
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By bcase1997
Hello everyone,
I have a 2019 Arctic Cat Alterra 570 XT EPS - 558 miles and probably under 80 hours. I have had it since July 2022, and it has already run into a few issues. Mid-winter we discovered the drive belt slipping, and when we opened the clutch cover, the belt housing was full of oil. We cleaned the entire compartment and the components, then replaced the seal behind the primary clutch and the belt. After this, the machine worked perfectly up till about a month ago. The same issue came up. We discovered more oil in the belt housing but much worse this time. The belt and clutches were throwing the oil out of the air intake duct on the left side of the clutch case housing. We repeated the same steps as before and replaced the seal behind the primary clutch (neither time, was there any indication that the secondary clutch seal was leaking, so we haven't touched that one) but realized that after putting it back together the clutch housing started a loud growling noise when the gas was pushed. We narrowed that down to possibly being the clutches losing their lubrication because the only thing we did differently than before, was clean the components with gasoline versus Brak-leen we used last time. The gas most likely ate all of the lubrication out. We used Blaster Dry Lube Advanced with Teflan and sprayed it into the Movable Drive Face and Damper. Once the cover was placed back on, and test drove, the sound was immensely quieter. But the RPMs have been running extremely high still (about 5000 going about 8 MPH). And once the machine sat for a few minutes, and we rode it again, the sound came back, just as loud as before if not louder.
Does anyone have experience with this type of situation? Any ideas of what we should do? We would like to avoid the dealership, as the warranty has already run out, and we have experienced friends that can help, but currently, we are all at a loss.
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