lost power, chain noise?, wont run

[rrman1]

last nite bike started losing power, heard noise like chain hitting something maybe, noise quit after a minute or less, power decreased to a stop. engine tried to start once or twice but didn't. just changed oil, had just gassed up. no noise now like chain.  bought 01 c10 w 4800 mi., now has 7500. ran perfect until this.  put 100k plus on 75 z1 900, it jumped time twice and got valves, this was different, 900 was instantly gone. this was gradual over a few minutes, not long.. thank you for any ideas.

[T Cro ®]

You said you "JUST" gassed up right? Look in that general direction first! If the engine was starving for fuel you might very well hear some very odd sounds as the cylinders die out and cause unbalance. Did you turn to reserve and perhaps fill your carbs fill of trapped water? Did you perhaps get a load of $hitty fuel? Drain the fuel from the carb bowls and see what comes out.

An 01 with 4800 miles it nothing but that in itself can cause problems too; too much sitting around can cause issues...

[rrman1]

thanks t cro. will check fuel. sure hope its that simple. 

[RFH87_Connie]

I had two float needles (carbs 2 & 3) at once get crap on them right after getting gas on the Eastern Shore a few years back and wouldn't seat to slow the fuel filling the bowls while running.  As long as it was reved up it would stay running (using the excess gas).  Anything below that and it would sputter then cut off.  A real pain to start back up.  After many flushings on the side of the road I got them cleared somewhat.  When I got home, they got pulled and cleaned along with the tank and petcock being dumped and washed out.  There was sand and grit in the bowls.

BTW, there was a hurricane the week before which probably added a lot of crap to the fuel storage tanks out there.  Note to self: don't buy gas in a recent hurricane or flooding area - ever.  The bikes got at least a 200 mile cruising range for god's sake.

[rrman1]

will check, rfh87 thanks for help.  will be back home tomorrow.

[rrman1]

found prob.  no fuel as you said. cranks and runs w start fluid into air box.  relieved. now to disconnect hoses and find tro.  thanks for help. i'm back in the saddle again. almost. in phil's words;(my 2nd cousin): happy, happy, happy.

[Jet86]

Kind of sounds like the problems i had just a short while ago, every time i filled the tank up the bike would run a few miles, some times 10 miles then stall and leave me stranded, quick temporary fix to get you off the road is to ''check for fuel line kinks'' ''open the gas cap'' ''drain out some fuel''.  if it happens again try any of them fixes and try to start the bike.

there was just something about my bike and the emissions system that made my bike go bonkers every time i filled the tank, i think it had to do with the vacuum some how and of coarse me probably over filling the tank to many times.

not sure if i understood your post right, Did this happen shortly after filling up the gas tank?

[rrman1]

5 min after filling up.
thanks for help

[rrman1]

bike runs  as long as start fluid sprayed into intake.  no fuel coming thru the petcock in any position. pulled petcock out of tank.  air blows thru large orifice, not small one(vacuum hookup?).  any ideas on what to do next? a friend thinks petcock may be operated by a vacuum diaphram, thus the vacuum? line. thanks for any help.

[rrman1]

petcock positions are prime, run, reserve.

[Daytona_Mike]

The Prime does not require vacuum from the engine for fuel to flow.
If you have no fuel flowing while on Prime then your issue is in  the gas tank or in the petcock..

[T Cro ®]

bike runs  as long as start fluid sprayed into intake.  no fuel coming thru the petcock in any position. pulled petcock out of tank.  air blows thru large orifice, not small one(vacuum hookup?).  any ideas on what to do next? a friend thinks petcock may be operated by a vacuum diaphram, thus the vacuum? line. thanks for any help.

Blockage is in the hose between the tank and the carbs?

Switch petcock over to the prime position do you have any fuel coming out of the fuel nipple on the cock?

[rrman1]

nothing in any position out of petcock.                removed petcock. blew into gas output orifice. air passed out filters or sounded like it.

[T Cro ®]

nothing in any position out of petcock.

Did ya try opening the gas cap to see if perhaps your tank is not venting properly?

Sounds to me like your problem is in the petcock itself though...

[rrman1]

i did try to start w gas cap open.

[rrman1]

i'll disassemble petcock and see what it looks like. thanks to all.

[T Cro ®]

i did try to start w gas cap open.

Well that about covers it then if your not getting fuel from any position of the petcock and you've tried this with the gas cap open then your problem is in the petcock. Going off the idea that the last thing you did was take on a load of fuel right before the trouble started it sounds like you got something fugly in your cock......   

[Jet86]

Murph Kits is the problem solver http://www.murphskits.com/catalog/product_info.php?cPath=1_94&products_id=140

i think he has a rebuild kit to but if you just get the petcock its a bolt on and go solution.

[rrman1]

have fuel out petcock now in prime. filled glass. fuel looks good. going to empty carb bowls  and refill and try again.  it was trying to crank and runs w start fluid in airbox. thanks for help. dont know why fuel started, dont care.

[T Cro ®]

have fuel out petcock now in prime. filled glass. fuel looks good. going to empty carb bowls  and refill and try again.  it was trying to crank and runs w start fluid in airbox. thanks for help. dont know why fuel started, dont care.

I'd be cautious and need to know why as it might do it again.....