86 Aspencade dies then starts back up.


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sgrider
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86 Aspencade dies then starts back up.

Postby sgrider » Fri Apr 16, 2010 4:28 pm



I was rideing down the street enjoying the nice day and I noticed I was unable to throttle up. The bike was not going to continue on, still sputtering until she came to a complete stop. Thinking I was going to have to figure out a way to get her home which I did not like any of the options that came to mind, I kept trying to get her started. After about 5 minutes I was able to go down the road like nothing had happened. After a couple more rides she did it again, and yes I was able to get her started and go down the road. Took her out again and didn't get very far this time but able to get her started went to get somthing to eat started her up and some blue smoke came out but still able to run. Not far from there she stolled out, got her running, put her in the garage and now she sits. I just had replaced timing belt but don't feel that there was a problem cause I was rideing for a while after that. I don't think its electrical because stater was tested fine and was able to crank starter with no problem. I was reading another story where it might have been the pulse generator and I was thinking that I had to remove the lower one to get timing belt on, don't know. Now rideing Boulavard but wanting to get GW out again, need help where to start.



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WingAdmin
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Re: 86 Aspencade dies then starts back up.

Postby WingAdmin » Fri Apr 16, 2010 8:29 pm

It could be the master fuse - they can crack and when they get hot, they expand enough to spread and cause the stator not to charge the battery, and when the battery starts to get drawn down a bit, there isn't enough power to generate good spark, so the engine stumbles. When it cools off, the cracks in the fuse get pushed together, and everything is fine again. You can replace them with a regular automotive blade fuse - do a search here for "dogbone fuse".

sgrider
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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Mon Apr 19, 2010 7:14 pm

WingAdmin wrote:It could be the master fuse - they can crack and when they get hot, they expand enough to spread and cause the stator not to charge the battery, and when the battery starts to get drawn down a bit, there isn't enough power to generate good spark, so the engine stumbles. When it cools off, the cracks in the fuse get pushed together, and everything is fine again. You can replace them with a regular automotive blade fuse - do a search here for "dogbone fuse".

Changed out fuse that I was able to get at Ironpony, and still stalls out. I did notice there was little to no fuel in gas filter that I had replaced over winter but not many miles on it. I also had to replace gas tank with a used gas tank so I may go ahead and replace fuel filter again. How much fuel should be in filter when bike is running?

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tricky
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Re: 86 Aspencade dies then starts back up.

Postby tricky » Mon Apr 19, 2010 7:51 pm

If when the engine reaches operating temperature, the bike dies it can be attributed to the pulse generators.
These bikes are getting on in years.
I would change them out, if that solves the problem OK if not, you have a spare set, they will eventually.

It does sound like it could be them.

Do the test on the fuel pump that way you can eliminate the fuel problem.
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Re: 86 Aspencade dies then starts back up.

Postby WingAdmin » Tue Apr 20, 2010 6:48 am

Yep, that was my next guess - the fuse is the cheapest one to try, the pulse generators are next. Unless when it dies, it is sounds like it's dying of fuel starvation, in which case I'd go after the fuel system/filter. But my money would be on the pulse generators.

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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Tue Apr 20, 2010 7:57 am

tricky wrote:If when the engine reaches operating temperature, the bike dies it can be attributed to the pulse generators.
These bikes are getting on in years.
I would change them out, if that solves the problem OK if not, you have a spare set, they will eventually.

It does sound like it could be them.

Do the test on the fuel pump that way you can eliminate the fuel problem.

If it is the pulse generators, where would be a good place to get them? I found on ebay but they are used and just don't believe replacing old generators with someones old generators would be a smart choice.

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tricky
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Re: 86 Aspencade dies then starts back up.

Postby tricky » Tue Apr 20, 2010 8:02 am

I live in Ontario, Canada and for parts go to my local Honda dealer.
I got mine last year for about $80ish

If the ones on ebay are going for about $15 I might give it a try....

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Re: 86 Aspencade dies then starts back up.

Postby thrasherg » Tue Apr 20, 2010 10:35 am

Could it be a blocked fuel tank vent? If the vent is blocked, it will allow gas to leave the tank for a few minutes, then you get a partial vaccum in the tank and the bike stops (no gas). If you wait a few minutes air leaks into the tank and allows the fuel to flow again for a short time? Next time it stops, just try opening the filler cap and then see if it starts immediately (without waiting 5 minutes). If it does it's the breather that is blocked. for an 86 I don't know if the breather is integral in the filler cap or is a seperate pipe coming from the top of the tank somewhere..

Gary

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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Tue Apr 20, 2010 11:41 am

thrasherg wrote:Could it be a blocked fuel tank vent? If the vent is blocked, it will allow gas to leave the tank for a few minutes, then you get a partial vaccum in the tank and the bike stops (no gas). If you wait a few minutes air leaks into the tank and allows the fuel to flow again for a short time? Next time it stops, just try opening the filler cap and then see if it starts immediately (without waiting 5 minutes). If it does it's the breather that is blocked. for an 86 I don't know if the breather is integral in the filler cap or is a seperate pipe coming from the top of the tank somewhere..

Gary

yea I tried that yesterday and it still takes a little while before I can it to start again. I even tried to run with cap loose but it stalled out. Thx

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Re: 86 Aspencade dies then starts back up.

Postby thrasherg » Tue Apr 20, 2010 2:41 pm

Well that kills my idea..! :D Guess I would bet on a faulty pickup/igniter next..

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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Thu Apr 22, 2010 5:07 pm

tricky wrote:If when the engine reaches operating temperature, the bike dies it can be attributed to the pulse generators.
These bikes are getting on in years.
I would change them out, if that solves the problem OK if not, you have a spare set, they will eventually.

It does sound like it could be them.

Do the test on the fuel pump that way you can eliminate the fuel problem.

Correct me if I am wrong, but is the relay for the fuel pump that I need to put a jumper on buried under the coil. If so can I slide it out of its harness without pulling coil to make the jumper connection for fuel test.

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Re: 86 Aspencade dies then starts back up.

Postby tricky » Thu Apr 22, 2010 5:32 pm

Yes you should be able to slide it out of the rubber harness.
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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Thu Apr 22, 2010 6:10 pm

tricky wrote:Yes you should be able to slide it out of the rubber harness.

Its not any of the relays in the picture, right? Its below the coil front center of bike rectanguler shape with rubber harness around it as far as I can tell. Thanks for getting back so fast by the way

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tricky
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Re: 86 Aspencade dies then starts back up.

Postby tricky » Thu Apr 22, 2010 6:18 pm

I Dont have access to an 86 manual but on the 85 the fuel pump relay is in that position
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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Thu Apr 22, 2010 9:05 pm

tricky wrote:I Dont have access to an 86 manual but on the 85 the fuel pump relay is in that position

Thanks, the picture is hard to tell here on line and in my manual but I believe it is the one thats hard to get to. I will be looking at it Friday evening and we'll see if I'm correct, want to get her back on road. I did look into the price on the pulse generators at Honda, $99.00. If I get them, it will be the first thing I have bought from an actual Honda dealer. Priced out the timing belts and they wanted $90 each, got them at Napa for $16 each. Most the time they don't even carry parts for that old of a bike, guess Honda was not expecting there bikes to be on the road for a long time :lol:

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Re: 86 Aspencade dies then starts back up.

Postby WingAdmin » Thu Apr 22, 2010 11:14 pm

Incidentally...in most cases, if you click on the pictures in the messages, it will show you a larger version!

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Re: 86 Aspencade dies then starts back up.

Postby Mooseman » Fri Apr 23, 2010 10:30 am

sgrider,
Well I guess i'll add my 2cents to the mix here. I read you changed the fuel tank. I would check to make sure you didn't kink a fuel line somewhere. It's all such a tight fit. Plus if any fuel line was replaced. Some fuel lines kink eaiser than others when making some of those sharp bends.
Just remember to always love intermittent problems or they will drive you crazy.... :twisted:
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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Fri Apr 23, 2010 5:00 pm

Found relay for fuel pump and did test. I could feel pump kick in but really am not getting any fuel out of gas line. Made sure the fuel **** was on, hell even tried test with it on off. Tried test with gas cap off so I guess my next step will be fuel filter and to check line coming out of fuel tank. I did look at all the lines to make sure they where not kinked. I hope its just a fuel filter so I can get off cheap.
I did order the wire harness from electrical connections that I saw on this site to replace the stock three yellow wire harness for the stator but I want to make sure I solve this problem before I dig myhself a new hole. If anyone else has purchased this harness and has a FYI or two, glade to hear it.

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Re: 86 Aspencade dies then starts back up.

Postby tricky » Fri Apr 23, 2010 5:43 pm

I installed this harness, a good instruction sheet came with the wiring.
I did remove it after I installed my external alternator.

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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Sat Apr 24, 2010 5:26 pm

Did test on fuel pump but couldn't get fuel to flow. I kept turning the bike on and off then finally I got fuel I also got a little round piece of medal. After that the pump tested fine so I put it back together and took it out for a spin. Ran it in 2nd gear with rpm's up it back fired, sounded like a gun. She spuddered all the way home and died in the garage, good thing didn't want to push her home. Well at this point I have ordered a new fuel pump from Bike Bandit ($150.00) and hope this is all thats wrong with her. :shock:

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Re: 86 Aspencade dies then starts back up.

Postby thrasherg » Sat Apr 24, 2010 10:40 pm

Fingers crossed for you.. :) That's a lot of money just for a pump!! :o Hope it fixes the problem.. :)

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Mooseman
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Re: 86 Aspencade dies then starts back up.

Postby Mooseman » Sun Apr 25, 2010 11:57 am

Bummer, when you say you got a little chunk of metal out of the fuel pump. Now I would be worried about contamination on down the line. There are little tiny fine mesh screens just before the fuel enters the float bowel at each carb. You may have to remove the carbs and check these filter screens. But then you can also check the float levels while you are in that far. Also make sure the fuel lines are clear of debris between the pump and carbs.
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sgrider
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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Sun Apr 25, 2010 7:38 pm

Mooseman wrote:Bummer, when you say you got a little chunk of metal out of the fuel pump. Now I would be worried about contamination on down the line. There are little tiny fine mesh screens just before the fuel enters the float bowel at each carb. You may have to remove the carbs and check these filter screens. But then you can also check the float levels while you are in that far. Also make sure the fuel lines are clear of debris between the pump and carbs.
Mooseman

Good idea, thanks for info!

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Re: 86 Aspencade dies then starts back up.

Postby sgrider » Tue May 11, 2010 5:27 pm

Got my new fuel pump and it looks like that was the problem. I did notice on the old pump before it was tested that it was getting real hot and the new pump, not so much. Been on the road for about 3-4 hours with no problems, can't say that with old pump. Thanks for all the info that has been given to me by all. This site really does help keep an old bike on the road and not on ebay for parts. THANKS AGAIN! ;)

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Re: 86 Aspencade dies then starts back up.

Postby Mooseman » Tue May 11, 2010 6:08 pm

Glad it all worked out.
Enjoy the ride.
Mooseman


Enjoy the ride. They are all good, just some better than others.
Mooseman


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