Fuel Filter/ carb issue

Started by He Man, October 10, 2011, 01:41:59 PM

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transplant

I had the same exact problem you describe a few years ago with my '95 M-900. It started after I replaced the fuel filter with a NAPA filter. After a lot of time on the side of the road, and going  through everything I could think of, I took a closer look at the filter. The outlet on the NAPA filter was on the opposite side of the stock filter. When I put the tank down, it pressed the gas hose on top of the valve cover. After a few miles, the heat from the valve cover would soften the line and, because it was pinched, it would restrict and eventually block the gas from flowing. On cooler days, it took longer for it to leave me on the side of the road. Apparently, the cooler ambient temps helped keep the gas line hard.
I believe there's a pic in the Haynes manual of the stock gas filter. If you have one, compare it to the filter you have installed. That may be your problem.

He Man

problem occurred before the filter, but after putting 5 miles in heavy traffic (which by the way is not easy thats like an hour in traffic!) the bike is showing no signs of cutting out.

so hopefully problem is solved, but there really is no way to tell unless u ride it.

MongoReturns

Quote from: He Man on November 03, 2011, 03:52:54 PM
held the bike at a high RPM for about 1 whole minute (headers getting red) with no issue.

Glad you got it sorted.  Please don't so the above again - it's really bad to have high revs with no load, even for the nearly indestructible M750.  It's rather easy to peak under the tank when it's down & make sure the fuel line isn't kinked or sitting on the cylinder - I always make sure my breather tube is between the fuel line & the cyl.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

He Man

i really had no other way to recreate the heat generated by the heavy traffic. It has droped nearly 20 degrees in ambient temp since the bike started to fail. so that was the only way i could even remotely do that.

the fuel line was defintely not the problem. it was defintely the fuelpump, considering how messed up the diaphragm was.

the bike ran great, however, i now have a dead 1098 on my hands to work on. :\

MongoReturns

Quote from: He Man on November 04, 2011, 11:54:42 PM
i really had no other way to recreate the heat generated by the heavy traffic. It has droped nearly 20 degrees in ambient temp since the bike started to fail. so that was the only way i could even remotely do that.

the fuel line was defintely not the problem. it was defintely the fuelpump, considering how messed up the diaphragm was.

the bike ran great, however, i now have a dead 1098 on my hands to work on. :\

Dead 1098?  What's wrong with it?  Switch over to the ducati-superbikes.com, we can help  ;D
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

He Man

haha im on ducati.ms :p

i dont knwo whats wrong with it. i turned it on for baout 10 mins idling to get the STABIL into the system. then shut of it off. washed it. and fired it back up. then my frined stalled it cause water got into the clutch but it just so happened that it also ran out of fuel.

now when i hit the starter, the bikes lights shuts off and goes through the startup procedure, except no power gets to the starter. Strange because that bikes been through hurricane rain and a rag defeats it? im pretty sure a fuse is blown somwhere.

MongoReturns

Yeah the banner ads & format of that site drives me nuts...

Unusual 1098 problem - if not a fuse (I actually doubt it's a fuse) check out the solenoid, it's (relatively) easy to get to, it's in front of the battery box.  Can't believe there's no locktite on the terminal nuts, mine were a bit loose.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

He Man

well i didnt look at anything. it just started fine today. guess water got into the perfect spot to stop it from starting. odd considering this bike rode through a hurricane.

MongoReturns

Yeah washing them with more than a spray bottle is a bad idea.  I remember people used to get water in the swingarm & screw up the hub, but riding in the rain is fine.  I always figured the heat from riding evaps the water, so its always fine when it's hot.  Washing cold, not so much.
2000Monster750Dark: cored pipes, stage2, 43t, f-18, dptach
2007 1098Red: home depot cooler guard, on sale cluch cover, on sale dp dark tall screen, ebay hugger, hand painted clutch spring caps

He Man

ive shot a hose at my bike with no issues. though i avoid the gauges and theres not much in terms of electronics on the bike aside from the gauge/ecu battery. the later being underneath the tank and almost impossible to get wet...