Engine stops

I have a 00 heritage. I can ride 10 to 15 miles, engine light comes on and engine dies. Took to the dealership and computer said intake manifold gaskets. I've also replaced the coil and plug wires, battery tests ok and correct charging voltage. I have even cleaned up battery cables and made sure all is tight. When the bike sits for a time, anywhere from 2 min. to 1/2 hour the bike will start again and then run for 10 to 15 miles. All the lights stay on, only the engine quits. Recently I installed Hooker long shot exhaust (which turned blue the next day!! Very dissapointed!! but the performace and milage are great.) Whats up????

Could be bank angle sensor. Dutch

If the pipes turned blue that would indicate excessive heat, possibly a lean condition. I don't think you necessarily need to re-jet or re-map after new pipes only but it sounds like you could be running lean from what you describe. Sorry I can't help with the motor quitting. Do you have a manual for the bike?? Also if your mileage is so good, that would also tell me you could be lean.

maybe this

not real good with bikes. if it were a car, i'd be thinking about the fuel filter

Not sure what year TC they started doing it, but they have a temp sensor that if exceeded will shut the engine off. Judging by how fast your pipes turned blue, sounds like it is running very hot!

Well after replacing the coil, plug wires and intake gaskets I went to the service manual, the one on the shelf by the refrig. with the beer in it!!! I think I read that in a thread some where here!!! (good advice) Made a jump wire for the data port pin 1 & 2. Counted the engine flash code
(41) and found out it was a weak cam sensor signal or no signal. Luckly the closest HD dealer was open and had one and only one in stock. Went for a 2 hour tour and runs great. Bike has 56000 on it so investing in the new coil and wires is ok with me! This site really helped me out! Thanks!!!!

Glad all is well, but damn we weren't even close....:roflmao:

That's ok Man!!! This place is sooooo cool. It's like finding a new home!

I made my own jumper plug out of an old speed sensor that I replaced earlier this summer. I just moved the two wires over to the correct 1 & 2 pin location and then wire connected the two ends togather and wa la a perfect fit. Now I can carry it with me on the road.

Did the dealer say that the computer indicated bad intake gaskets??????
That would be one smart computer

HAL, what are you doing HAL ahhhhhhhhhhhhhh

(2001 space odyssey anyone?)

They told me they were going to hook the puter up, so I assume so. They replace the gaskets, said they were rolled. Funny that the puter didn't pick up the cam sensor? But my handy dandy jumber tool and engine codes along with my service manual did!!! But don't forget the great advice I got right here in the archives.

Bear,

I think the tech was making something up then. The computer is not going to be able to tell if there are bad gaskets. There is no "gasket" sensor.

Like you said, you had to find the codes that the tech didn't find.

Watch out for that guy next time.

You did what we all have to do. Do it ourselves. Good job.

In this case, Bear has a 00 Heritage - thus no O2s.

With newer bikes and O2s the computer now has more info.
Now - and I'm theorizing here - if you had bad gaskets and the computer went out of it's range to add fuel it would trip a code that could be either Throttle position out of range or O2s bad or lean etc. We would take that info and come up with scenarios such as gas filter clogged or fuel injectors bad etc. There are always a number of things to go after. The computer can get you close but it doesn't always lead you directly to the problem. In this case it did by flagging cam sensor only after Bear did the leg work finding the codes.

How the dealer came up with bad gaskets is beyond me. Those gaskets don't just go bad on their own. Usually someone has to be in there moving the throttle body around. I'm not saying it can't happen and of course loose bolts but it seamed a strange answer to me. specially when his engine just died for no apparent reason. That doesn't sound like gaskets.

I think I am agreeing with you Chuck if the system had O2s.

A year ago I took the carb off to have it smooth bored. At that time the manifold seemed tight. Its the only time the carb has been off during my 6 yrs of ownership. Not sure if the if the gaskets wear out or someone worked on it before my ownership.

Your right!! This place is cool!!! Love the info.

In my case the bike is now 9years old. I flat out replaced them right before my Sturgis trip. I think they get hard after that many years, but the old ones looked fine.

Your right tho, you do have to be careful or they may not seal perfectly. When I have had a leak I could always tell in the rain or right after I washed the bike. The intake would whistle when decelerating with closed throttle until it dried out. But I never had any driveability problems when they leaked.

The real test will be this weekend, going on a two day trip.
Cross your fingers!!