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About MadMan

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  • Birthday 10/10/1972
  1. MadMan


  2. Its been a while since my last post. To recap, I have a snorkel and after market DG RCM slip on exhaust installed on my 98 yamaha 350 4x2 big bear. The raised the carb NEEDLE up a bump and changed my Main stock jet from #120 to a #145. Bike was running great afterwords. It was peppy and sounded killer. I recently had it in storage for maybe 4 months and now its running crappy. It doesnt want to idle for very long, keeps stalling. It drives fine with light or medium throttle but if I punch the throttle the revs stop. Its like a let off the gas when in reality Im holding it down. If I d
  3. I think I`ll have to pull out carb to examine it. I once had trouble with the float sticking and the carb used to get flooded and pour fuel out of overflow line. Maybe float is sticking again? Its just weird the bike runs pretty solid from low throttle to 3/4 throttle, but when I punch WOT it stalls out and when I drive bike on a steep hill it stalls out. Does this sound like the carb is being flooded with gas? I`m no carb expert but I have taken the thing apart several times since I`ve bought bike, so I`m familiar with the components. I think my next ATV will be EFI for sure. LOL!
  4. Hey Oxi-Black, I own a 1998 Big Bear 350 4x2 with a similar spark plug issue. I recently pulled out plug and she is BLACK. It is a NGK D8EA. Heres some background info; I installed a snorkel on her a couple years ago and raised the carb needle one notch and it ran alright until the stock muffler rusted out completely. I upgraded to a DG RCM ll slip on exhaust and bike ran only so so. It backfired when I would punch throttle and sputtered a little when I would be creeping thru a watery mudhole. I rejetted the carb. The bike ran great and was very peppy. Exhaust no longer backfired. Aft
  5. OK good advice. Well I bought the yama 350 as my first quad and Popo 500 bought as a replacement, but some how it became my wifes choice ride. LOL. Ill do some test sitting at some dealers before I decide. I am even considering a 2up quad, altho choices are slim. Only Polaris, Can Am, and AC make 2 ups currently. I would buy a yamaha 2up if they made one. I dont know much about AC, Can Am seems pricy, so that only leaves Polaris. LOL. We enjoy riding in a group and not all our friends and family own quads, so we end up riding double a lot.
  6. oxidized black - LOL, yes. U know exactly how I feel. A circus clown, haha. If I drive solo Im on 500 popo but if we ride together I ride the 350 Big Bear. Tough bike, but its simply too small for my long legs. Im going to visit one of the BIG atv stores near me that carry multiple brands and see how each feels size wise. I really like Yamaha build quality. Never let me down or my friends down. Ive owned a few polaris bikes and they ride nice but Ive had issues with each. The popo cvt seems have to rev high to make bike move initially, plus I hate not having a sep front and rear brake
  7. Hello everybody, I need some advice on buying my next utility ATV 4x4. Ive narrowed it down to Arctic Cat, Yamaha, Polaris, or Can Am. Im wanting something with a 500-850 motor. I def do not want a 1000. They just seem too big and heavy. I am 6ft-5in tall and medium build. I currently drive a 1998 Yamaha Big Bear 4x2 350 and its simply too small for my body size. I also own a 2000 Polaris Sportsman 500 4x4 which fits me quite nice and has a comfortable large seat. My wife loves driving the Popo since its automatic, so I get stuck driving the Yamaha if she tags along for ride since its
  8. Another update, well I finally finished putting my new heavy duty cvt belt on and EPI clutch kit. Now when I shift into gear the bike doesnt grind. WooHoo! I only road the ATV around my yard and up and down street to see how the cvt was engaging. This EPI kit works well. It came with 2 primary springs and one secondary spring and a new helix. The bike takes off like a rocket now! I bought the kit with the intention of changing my current stock 25" tires for taller mud tires. This EPI claims its designed for tires 27"-28" tall. Ill update again after I trail ride it. BTW if u want to
  9. Well Motoverse.com back when their Vin Decoder link worked was great. Its been down for months. Luckily when I bought my yamaha I used it and got the info I needed before site stopped working. My polaris I used PUREPOLARIS.com and logged in my VIN. I got both bikes Registered and tagged now so Good News, neither were stolen bikes. WooHoo! This is always my fear when buying things thru Craigslist. A hand shake deal with no title can sometimes lead to problems. If u cant find a free online VIN decoder, just contact the manufacturer and they can provide u with all the info about your bike
  10. Hello ATVers, I need help aligning the belt on my Polaris Sportsman CVT. I bought this bike used and noticed a little smoke coming out of CVT exhaust under heavy throttle (smelt like burnt rubber). The previous owner claimed he installed a new belt, but when I opened up cvt cover I noticed belt was out of alignment causing the edge of one side of belt to fray. A small chunk of the belt was missing in one area. I removed one of the washers from behind the secondary pulley to move belt back to alignment with primary pulley. The washer acts like a shim and removing it moved the secondary
  11. Soco499; Yes, I did fix mine. I adjusted the carb needle to remedy my problem with throttle. I opened up the carb, pulled the needle out, and moved the needle clip one notch down which raised my needle slightly. By raising the needle position it makes bike run a little RICH. My snorkel mod increased my airflow, so I needed more fuel to compensate. The bike previously was running like crap. It'd bog down when i would punch throttle from a stand still. Now throttle response feels right. My stock exhaust is rusted to Hell, so I am ordering a new DG RCM ll slip one exhaust from Amazon. I'
  12. OK here's an update. I adjusted the throttle screw on my bike's carb and lowered my idle. The bike no longer grinds when I put it in gear, but still requires a bit of force to pop it in gear. I removed the cvt cover and discovered the pullyes were out of alignment. Previous owner had recently chgd the CVT belt and never adjusted the alignment or didn't notice. Any way the belt is slightly chewed on one side in one small spot. I fear it's going to wear prematurely due to this. It started to fray on same side it was rubbing. I was able to align the belt on pulleys. I did notice the belt
  13. Hey thanks. I will adjust the idle down tonight when I can. Previously it was set so low the bike kept stalling, so I bumped up the throttle a tad. I'll lower it bk down and see if I can find the perfect setting between NOT stalling and NOT grinding when I shift gear. On a side note, I did notice one quirk about this bike and how she shifts gears. If I am towing something heavy with the bike and it's under tension I cannot shift gears. If I am in HIGH gear it will stay in HIGH gear. I discovered this when i was rescuing my buddy stuck in the mud. I went to tow him out of a hole and aft
  14. I recently bought a 2000 Polaris Sportsman 500 4x4 with CVT. The bike runs great. Starts right up and motor sounds solid. My problem is sometimes when I shift into gear it grinds as I'm shifting. I always make sure the bike is at a complete stop, I press the foot brake on, and I shift the lever into HIGH or LOW or REVERSE and it grinds as it pops in gear. I'm guessing maybe the idle is too high or I may need a new clutch kit. It has the original stock CVT clutch (springs and weights) so it's probably due for some maintenance. I have adjusted the throttle screw on the carb and when I fir
  15. Hey thanks bro! That link works gr8! It not only told me make and model but even the color was "green", lol. That's cool. I appreciate the help. I own a '98 Yamaha Big Bear and a '00 Polaris Sportsman and it's helpful knowing the exact model numbers. I learned there were about 8 different models built during my model yr and when you are ordering replacement parts it's good info to have. Thanks again Oxi-Black! :cheers2c:

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