maxim x bad gas?? barly made it home

when i left work the bike ran fine. after i left the gas station a few miles down the road it started spuddering out and when i held full throttle the rpm needle was at zero and barly running dying out when i let off it idled better and the needle was at 1500rpm then i shut the petcock thinking i had a float leak and i got it to rev i dont understand how it was still running if the needle was at 0rpm. at first i thought i blew the engine cause i was redlining the piss out of it

 

Anything's possible. Is this the bike that you thought had low compression after you dumped it? Did you ever re-test the compression correctly?

Have you checked its valve clearances yet; or those of your 700 airhead?

Could be fuel, ignition, or maybe you finally done blowed it up (dumped a valve or holed a piston.)

 

yes but my dad bought a maxim x parts bike (mystery engine) and i swapped the engine first it read 60s-90s but once we ran the engine it had 165-170 compression in each cylinder. yes we tested that other engine multiple times and only got 10-15compression my dad got 190s out of #4 cylinder before the accident but one thing that always happened that never did with this new engine is water used to get in number 3 spark plug if we left it out and would skip till you got the water out also i drained over a quart of oil out of this new engine to get a bubble in the window when we got it. anyway once i got this engine to go after bogging out today i flew home keeping it revving. me and my dad both agree that the original engine was alittle bit more beefy and we think thats why it doesnt beat the air cooled one right off the line i didnt not check anyclearences yet since my dad told me not to worry about it cause i obsess too much and you could probly go 100,000 miles without checking them the x is the only bike im using to get to work

 

anyway this bike has been the most reliable bike until today

 

Your dad is wrong about the valve clearances and if you were getting water in the #3 cylinder you had a leaky head gasket which has probably now BLOWN.

You can't simply ignore critical maintenance items because somebody who obviously (or they wouldn't have told you that) doesn't know what they're talking about told you "it's fine you obsess too much."

Remember how I said it would run fine right up until it wouldn't any more?

Guess what.

 

yeah i know after i did a oil change in the engine before the accident we noticed white gooey stuff under the oil cap i notice it in this engine too now is this headgasket leaky too?

 

White gooey stuff is what happens when oil DOES combine with water, which happens only at high temperature and under pressure.

If you have signs of water in the oil and water in a cylinder, the motor is in the process of blowing up.

WAS, I suspect in this case it may be too late.

Understand something: if you are losing or have lost a head gasket, the motor isn't toast, it can be fixed. However, if you continue to try to RUN it that way, you stand a chance of warping the head and/or cylinder deck and truly ruining it.

 

"the motor is in the process of blowing up" does this happen when just oil combines with water or does it have to be both in the cylinder too cause it looks like the same stuff the other engine had in the oil. do you know where and how much a headgasket is?

 

hit Len up on the head gasket. Actually I'd look for a whole rebuild kit (top, bottom, head, valve, and side gaskets).... you are going to need it.

and if you are talking about an X... remember the water can be coming from the coolant too.

Motor is done, or needs EXTENSIVE work. Sorry. And as Fitz said said too... keep trying to run it and it will quickly become unrepairable.

 

that blown motor is off the bike its been off the bike for a almost a year now im running the motor we got off the parts bike. theres been milky stuff in this engine too but no water in the plug cap ive put over 2k miles on the engine so far and lately its been running skippy this engine has 165-170 compression i havent checked it again but im assuming its still good? is this engine/headgasket going too?

 

also the other engine thats been off the bike. before the accident the temp needle would bury in the red (the fan did go on) i remember in 40-50 degree weather after redlining it the needle would all sudden be in the red buried. this new engine in this same weather 50 degree wont move past quarter on the gauge

 

Josh, I don't know what you want from us. We've explained about the symptoms of a leaky head gasket (you have those symptoms) and recommended that you check valve clearances and compression and all you do is gloss over that advice and keep hammering a sick motor.

Meanwhile, you're talking as though you'd seriously contemplate replacing a head gasket but yet you refuse to even check your valve clearances which is ONE HECK of a lot simpler procedure.

You already have the only advice we can give, which is to catch up on long-needed maintenance before you do damage. Yet you persist and it appears as though damage is indeed being done.

I got nothin' for you kid if you won't follow advice.

 

well on the air cooled bike the starter motor wont turn over it just clicks the solonoid i changed the solonoid and it still clicks any advice on that?

 

Sure. Charge the battery.

 

And check the starter brushes (if it still won't turn over with a charged battery).