Arizona

Well body off, cleaned good, painted, drained gas tank, rebuilt carb

installed fuel pump, replaced battery, painted the frame and motor. 

installed front wheel, Got it to fire up. Lots of power for a 250, I live on 

2.5 acres, havent got it out of 3rd yet, pretty fast. If not careful will end

up on 2 wheels, no wonder they dont make anymore lol. It is missing front

plastic which covers frame, Any ideas where to find some. Az

Thought this would be fun, 1985 Prairie, live clutch 250

was pretty rough, carb was in pieces and in a baggie hanging from cyl head. 

Gas smelled like an old dinosaur. How could i go wrong. 

It actually came with xtra set of wheels with brand new slicks for the donut fun!

I couldnt open it also. Nice work. 

using the gm hei module are you going to get any timing advance? 

probably stall or backfire, why not use proper cdi? Keep us informed

Az

If it backfires on deceleration its usually rich, can try adjusting carb, 

sometimes changing exhaust requires a little re jetting,  Az

On 4/29/2020 at 5:32 PM, MarkinAR said:

I've thrown electrical fire more times than I can remember but never fuel fire. Caught a screwdriver in a ring gear. Caught a finger in a ujoint. Nearly broke an arm with a steeper bit the other day sizing the hitch on a 300 for a D ring. Yes a 19V cordless will indeed snag with a stepper and try to break an arm!

I almost did the same thing, have a monster gear reduction drill and was drilling a 3/4 hole for the hitch, well the bit grabbed, 

slammed my fist into the sharp side of the exhaust pipe and almost dislocated my shoulder. ended up with a bloody hand

and a real sore shoulder. Gotta watch those heavy drills

All the harness repairs i do i use 14 gauge, if i was making a harness from scratch

i would probably use 12 gauge. I just redid a bayou 220 with melted wiring, missing

the starter relay, the ign relay mostly all wiring was gone was just left with 5 strands

of wire out of the main harness, Just get a diagram take your time. I used a sharpie 

to hi light the circuits i was working on, makes it a little easier. Good luck Az

I would bypass the kill switch just to rule that out. Also what readings you get on the pick up coil? 

With the kill switch bypassed do you get a pulse from the p/u coil? That would be my next tests. 

Good luck, Az

I have just finished dealing with major wiring problems on a bayou 300 and 220 

I know the pain Az

I usually end up paying 35 or more for seat covers, hopefully

the info from Ajmboy will pay off lol. I mostly fix the atvs then 

flip them so the least i spend the cheaper i can sell it. Got to keep

the margins in order so every penny helps. 

For oil i have been using https://www.oreillyauto.com/detail/b/masterpro-oils-4342/more-powersport-30734/atv---motorcycle-chemicals-25144/motor-oil---motorcyclepowersports-19237/c762ea16fffc/masterpro-conventional-small-engine-oil-10w-30-48-ounce/80019/4495703?q=atv+oil&pos=15

Except the oil is usually a synthetic blend. Guess there is no cheap oil these days. 

Sounds like most the ones i end up with. Part of the fun and or headaches!

Just a couple of things since i get various atvs. 

They always need seat cover and always need oil and other minor items.

My question is Do you buy any specific motor oil for them, i heard you must get atv oil or will mess up the clutch.

Not sure if correct but didnt want to find out hard way. Is there a cheaper oil or can you use regular motor oil?

Next they always need a new seat cover, any good places to buy bulk or cheap vinyl to re do the seats with out spending

30-50 dollars on a specific cover?

whats you go to places for parts, i use amazon, ebay  any others that offer a good deal? 

that goes for hard parts or just cables and or clips, wiring, bolts etc no wrong answer here. 

always looking for new ways to find parts for the older atvs. TIA Az

Well update on charging, received new part from other seller and is now

charging. Just need battery and clean it all up. Thanks for the replys Az

On 5/11/2020 at 6:28 PM, 1911Neil said:

I ended up just buying this. Should have it by the weekend.

Where did you find that connector and the terminals? Gotta link. Thanks

wiring is right, i went ahead and sent the regulator back and bought from different 

maker. see it   around monday. Crossing my fingers. Az

Back again with another headache, maybe you guys can help me out. 

Picked up a 87 Bayou 300 not running of course, all stator wires melted 

on the motor and also no spark. I checked the pick up coil ohmed out good. 

traced the wires and led to no cdi box, yes missing. So ordered it and while waited 

fixed the stator wires, had to wire direct to harness. Get the cdi installed and after a lot

of other things started it up. battery dead so used a batt charger to start it. Now when i shut

off the charger the motor died. So i check charging voltage...nada. I see voltage regulator is 

old and catalist leaking so i replaced it. Same thing no charge. I check stator and no voltage 

with it unpluged from harness while running. Soooooo i replace stator. Now Stator wires have

23v and up to over 50v at higher rpms. So i know its charging now. Connect everything back up and 

no charge voltage at battery! Still dies when i shut off charger. All 3 yellow stator wires have good voltage, checked

harness from stator to regulator and is good. The white wire has battery voltage at regulator, the brown wire has battery 

voltage at regulator when key on. The Black/yellow stripe has good ground. I get 3 volts at battery when i shut off charger. 

If i connect old regulator i get 7 volts when i shut off charger. Do i have a defective new regulator? Im stumped. when i 

figure this one out i have a big wiring problem on another one ill let you in on.  Az

Dang you live in the deep city, how you find places to ride atv there? 

Nice pics though. Az

You might want to check compression first and go from there

Can i use a regular Relay to replace the missing ignition circuit relay (round one) if so what have you used? 

Needs 4 wires. The oem relay is about 45 bucks. Thanks Az

DId the drive a few weeks ago and picked up another 220 Bayou, Lol same story, 

doesnt know when it last run, at least 5 yrs. Took both of us everything we had to 

get it up the ramps. Figured out later all brakes were locked up and cables frozen.

The motor isnt locked, felt like decent compression on the pull start. Now all and i do 

mean all the wiring is destroyed, cut, burned, twisted and parts missing. Managed to tear it apart

pressure wash it and cut out the wiring to see what i had, also is missing the  starter circuit relay. 

I have figured out the wires to the Voltage regulator, I think i figures out the wires to the dash lights (which the whole assembly is missing)

Still have to figure out the 2 wires coming out of the neutral safety switch where they go and 7 other wires coming out of the main harness.

i figure 4 of them probably go to the missing  starter circuit relay. The rest might go to the rear lights and something else. 

Would post pictures but not letting me post them saying they are too large? How are you guys posting pics now

Havent posted in a while, seems i am an essential and have been pretty busy/

Any way finishing up on the 250.  Ended up replacing the carb, The original one ran rich

no matter what i did. Also had to replace brake cables, master cyl. Still needs tires but 

gonna let it sit for now.  Ill throw some pics up later. Az

Figured it out a while back, was a 250

Well needed a bike fix so drove an hour (they are never close) and picked up 

2 Suzuki atvs. a 125 and a 250 quadrunner 4x4  both in bad shape but all tires are good

so that pretty much pays for what I paid for them. Can always use them on other atv.

Sprayed them off and parked them in the shop till further notice when I get really bored and 

finish the one im working on now. These look pretty rough, I am challenging myself more and more

each time. Where will it stop? lol. Seems like each one I get is a different brand. Firs time I have got

Suzuki. Time will tell. Az

Got it out of the paint shop today lol, Decided to take carb apart since he rebuilt it. 

Nothing was right as I figured, he even jacked up the coiled return spring for the 

metering rod slide assembly. Had the a/f screw bottomed out and didn't even clean

inside. Main jet was wrong size (at least he gave me old parts) Managed to get an intake boot

off e/bay for 8.50  DId I mention 1 of  the exhaust bolt holes on cyl stripped. Gonna tap it 

and reinstall it. I ran a fuel hose to the carb and batt charger to it and it fired up using the key!

I guess on the bright side the elect is ok, still have to check charging. Have to shoot some pics in a day

or so.  Az