Joe Breaux

well, with motor cover off, riding in the bed, theres so much noise going down the trail that I cant hear the whining ,so I cant isolate it with a hose .. Put cover back on, theres the whine again... I give up.. let it break.. Then I will know what it was... but it is still running very well.. new adjustable temp fan control switch working good. engine stays cool

vent tube ?

BINGO.. thats my bet

I checked here.. You need $25K liability insurance, a Safety inspection sticker [ means you need lights, signals, brake lights, seat belts, wipers, horn] and pay fees for license plate and registration to operate as Low Speed Vehicle on rural roads 35mph zone or less

any idea about doing that in Louisiana?

not yet.. weather is bad .. maybe in a few days I can try again . Does not seem to affect it in any way... just noise... who knows with Massimo

NOT!..lol sorry, I m 66 and still got all my original parts including teeth.. well, maybe not 1 or 2, but not the front .. Gold ,unlike M&Ms, goes on your finger, not in your mouth

sadly, no.. but at least mine is currently running well enough ... hasnt been in the shop in months

MERRY CHRISTMAS EVERYBODY or Happy Holidays if you prefer ... Hope SANTA makes it by your house tonight... I hear He already had the vaccine

I use Castrol ACTEVO 10W30 .. use it in all 4 of my ATVs too, for many years.. good for WET clutches .. I sincerely hope that by modifying the fan ,your engine will never blow head or gasket like so many have. Y ou made it to 400 miles which is way more than mine did before the overheating killed it ... I hope you get many years of fun out of it.. Merry Christmas

thats just cold, dude lol

as Jeff Foxworthy says... If going to the bathroom at 2AM requires SHOES AND A FLASHLIGHT..... you might be a redneck... ....... I would apologize to rednecks, but I know they are not so thin-skinned as to be offended by humor

If your ride down the UTV/ATV trails requires extra antifreeze ,battery jumper cables and a tow rope .... you could own a MASSIMO

5500 rpm is redline on my Hisun 500 engine ..it does not have a rev limiter except in reverse

lol I plan to hold on with one hand... 😱

at least I wont care anymore and the wifes new boyfriend can deal with it..lol

I think I m going to pull the engine cover, have wife drive it at 20 mph while i listen with a piece of hose . Try to isolate the noise that way.. Or fall out, get run over, die and solve the problem....

with only 500 miles on it seems unlikely its a wheel bearing or U-joint.. There is no slack in any of them.. I checked.. and they were all spinning 15 mph on jack stands.. no noise. The noise isnt coming from a wheel, it sounds like a transmission noise, like a power steering pump or trans pump but its not fluid drive, its belt... If it was wet clutch it would make noise on take off or idle but it doesnt.. It starts about 5 mph and increase with speed...... its just more weird crap that only Massimo seems to suffer from .. I guess when it breaks , I ll know what it was. .................. Otherwise its running great.. I installed an adjustable temp switch [ from EBAY , $19 } into the circuit where the old radiator thermoswitch connected, with a probe to radiator . and set it to keep engine at 140-150 degrees now that winter is here.. seems to work just fine.. No more overheating issues since Yamaha parts installed . Starts instantly, idles perfectly, plenty of power on trails. 4 WD works fine ,,,,JUST THAT DAMN WHINING from under my ass .. annoying as hell..

Well, I asked for help from Motorcycle Doctor that someone suggested.. They said jack it up on jack stands and run in gear to isolate noise.. seemed reasonable.. tried just rear wheels.. makes no noise, tried all 4 wheels off the ground... nothing.... not a peep.. just like revving in neutral.. NO NOISE! . put it back on ground and the whine is still there. in high or low range and 2 or 4 wd .. scratching my head...

As you probably have now realized, if it says HISUN on it, you got hosed.. Even the rep at Massimo Motors told me they dropped HISUN engines last year because of so much problems and they wont even warrenty the ones they sold.. HISUN wont even talk to me... We are all just left holding the bag.. My Massimo with HISUN engine has spent 6 months of its first year in the shop on 6 visits... Parts are hard to get and warranty is non existent .. Most shops refuse to even work on them now.. They dont get paid ..

!st rule of BBQ has always been the SIGN... outline of pig or just head... so so...... Complete Pig on sign...good.... Pig with hat better ... but PIG WITH PANTS...... HIT THE BRAKES.. YOU ARE THERE

Well, I guess when it breaks 5 miles in the woods, I ll find out what is making the whine .. and you know thats when it will break , not unloading from trailer .. I m pretty sure its not the wet clutch or the gear assembly or bearings , because the oil is clear and clean ,no metal or clutch material in it, no burnt smell... and no noise at all idling or while revving engine .. so its in whatever turns with driveline.. but not coming from rear axle area..

I believe so.. it use belts on tapered pulleys to change the gear ratio according to rpm vs load .. I hope the noise is just the belts humming

lol Wee Fewl Yu brand ...lol is that a division of Trickem Dickem and Howe ?

this whine starts at 3-5 mph and increases as you go faster in either LOW or HIGH gear positions.. . does not make it in neutral so its not engine , has to be in that CVT contraption..