Picked up 93 suzuki quadrunner 250 2x4

[Frank Angerano]

It's pretty straight forward and not a big deal  finding the sizes. And if anything is too long just  throw a nut on it and cut it to size and back the nut off to clean up the edges maybe even file it down a hair. 
12mm & 10mm make up most of the sizes. 

[pablo Blake]

Alright well i got the carb cleaned and a bunch of other stuff done doesnt seem to be running as rich, but now i think its running lean i keep hearing a pinging for about 3 minutes during start up. scared to run it in place for a long time because it seems to be getting pretty hot and not sure if its getting to the point of it being dangerous

I ended up taking the whole carb off taking the float and the diaphragm and cleaning with fresh gas. Also ran a bunch through the whole carb body it self bunch of black sludge came out. Im installing a fuel line filter now, seems it doesnt have one installed someone never installed one again after changing the line i think

[Frank Angerano]

Any idea where the black stuff is coming from? Tank or possibly the gas lines are breaking down inside? This does happen and you can usually tell by squeezing the hose and feel how weak it is.   If so swap the hose as well and put the filter in. Hows the inside of the tank look? 

[johniii]

have you cleaned the gas tank?? it should be cleaned out. Petcock can be cleaned also.may have a screen in there also.  lets see the u-joints

[pablo Blake]

Havent checked the tank yet waiting to run more of the motor treatment through first. Now that I added this motor treatment its burning away all the carbon it smells like. Will run fine for a second and than spit white smoke like crazy on reving, Once i really start giving it just starts puffing white smoke out the back but i stuck the borescope back in and it seems to be cleaning the carbon up went from wet oil soot to cleaner pistons where i can start to see the piston is self again. It doesnt smell rich so i think i got the carb tuned in right but the engine is just blowing smoke at the moment. gotta get that air filter in change it out and see if it improves a bit, if not im guessing the top end gaskets are fu****

Already im starting to feel a totally different bike, Grabbed my portable tach and hooked it up and tuned the idle in after adjusting the carb a bit more was about 300 rpm short. Gave it some gas and really felt some power for once went from sounding like a drip carbed engine on a cart to an actual atv again

Edited January 6, 2020 by pablo Blake

[pablo Blake]

Im getting really worried as im getting it more and more tuned in im getting this kinda ringing sound, i mean i checked if its preignition doesnt seem to be, Its not like scraping metal but like a light ting that speeds up as i rev it up and eventually goes away

Tried both a hotter and cooler spark plug sounds about the same, Was gonna see if i need to adjust the ignition timing for if the chain is bad. OR if unluckily its even worse and  piston rings are worn and no good or the block it is scored, Im just hoping its not those last things

Edited January 6, 2020 by pablo Blake

[Frank Angerano]

Are you sure its coming from the top end and not the clutch ? 
Only thing that comes to mind is the valve and cams up top if thats where your sure its coming from.  Pull the valve cover off and inspect everything, cam decompression device and the timing chain slack, valve clearance etc.  
What octane gasoline are you running in the bike?

[pablo Blake]

Honestly havent even refilled the gas since i got it was given to me with a full tank so i just added the motor treatment to it which said it'd raise the octane of the gas Plus add some special chemical thats ment to clean off carbon. Why would it come from the clutch? i didnt even have it in gear its sitting on stands idling just spitting smoke, Just from my limited knowledge the gas in the oil + the smoke = worn head gasket+ worn piston rings, Unless i have a full on warp of the head from someone overheating it will check the flatness of the surface when i get it off

Edited January 6, 2020 by pablo Blake

[Nick Brooks]

Bad gas can cause that pinging, even with an octane booster.  I'd drain and clean the tank out, since you mentioned you were seeing a black sludge coming through.

Edited January 6, 2020 by Nick Brooks

[pablo Blake]

Well sh** alright will unhook the line and drain it than flush it with some diesel and than old gas and refill with new gas, OR will the diesel hurt the tank even if its flushed? should i use kerosene instead? I've always used diesel to clean up my sh** because of the high ignition threshold worse it'll do is pass it into the oil or spit it into the exhaust

Edited January 6, 2020 by pablo Blake

[Frank Angerano]

You would hear the head gasket leaking. Spray the sides of the head where the gaskets are with windex and crank the engine you will see bubbles.   

I would drain the tank of all the gas and that chemical and change the oil as well. Put the proper spark plug and some 87 octane gas and see what happens. If the carburetor is adjusted properly the rest of the carbon will burn off. 

[pablo Blake]

I ussually only ran 91 in my dirt bikes worth running in this machine or nah? i mean i even ran 94 when we had it but thats long since gone

[Nick Brooks]

87 should be fine for it, ethanol free if it's available.

[pablo Blake]

I can only get the ethanol free in bulk at a farm supply store, only other place that sells is like a couple shops in small bottles for weed wackers n sh** like that

[Frank Angerano]

87 from any gas station should be fine. Get the old stuff and that chemical out and start fresh.  Double check the tank is clean and the hoses are not deteriorating inside.   
 

[pablo Blake]

Getting some more work done on this silly monster now that its warmer out

Finished the rear u joints already and got the whole rear drive back together and running multiple parts were seized and some serious gunk build up in the break reservoir

Edited April 28, 2020 by pablo Blake

[Dra O]

Was wondering how things had been progressing, man.  Your efforts will likely last a good 20 or more years.

[Frank Angerano]

Very nice progress. Keep up the posts, this is a good project for the next guy to learn from.  
Nice work @pablo Blake

[Nick Brooks]

Looking good.  One tip on those front drums, if you haven't already, there's a little ratchet to depress to allow the shoes to collapse back in.  They'll then self adjust the next time you hit the brakes.

[pablo Blake]

Yeah its been a bit of a sh** show found a bent tie rod couple others and had to straighten them out asmuch as possible with hydraulics especially the bottom u had a nice bend in it. So did the skid plate. Both the brake calipers were seized and had to do some surgery and they were just filled one side i got fixed the other needs to be replaced. Im now working a bit on the exhaust system and tryna get everything back to shiny for when i install a hunting/performance muffler

Edited May 1, 2020 by pablo Blake

[Nick Brooks]

The wheel cylinders are pretty cheap, mine were seized as well.  Was easier and faster to just replace them than to try and rebuild them.

[pablo Blake]

Yeah i ended up going that route, Also got in this lil one 2 days ago for free someone was gonna throw it in the dump

[pablo Blake]

Sadly its missing the oil pan for the bottom of the engine So you can see the cam thinking either get a replacement or make one outta thicker sheet metal and a ball peen and use permatex gasket and some bolts

[pablo Blake]

Anyone know if the Cv boots for the front are the same as the back? looking to grab some aftermarket ones

[MarkinAR]

2 boots per axle is about as much as just buying a new axle.

[pablo Blake]

Should be finished soon Hopefully

 

[spock58]

I like the look of the red! did you paint it yourself?