.png "Powered by vBulletin")
just done a build on the carbs(78gs 750-vm26ss)fired the motor up and she run like a top(minor adj. needed)only thing is shell die after a minute or two like i shut the ignition off.nothing hot sept the pipes....thing is....ive got a toggle hooked up to the coils (dyna s )off is off and on lights the coils up.no keyed switch,just a push button running juice to the starter.my conclusion is something just quits electronic wise.just what?cause as the motor dies and i tap the starter button,it will stay running till i let off...crazy project going on here and im bummin....any help from the pros would be great..thanks for the time,mike..
-
-
Two things. How old is the battery? And have you rebuilt the petcock?
This seems to be mainly a fuel issue, so the petcock could be the culprit. Also, did you rebuild the carbs? IE take them completely apart and replace O-rings and clean the passages. Did you use a carb dip?
Brad bt -
I bought an 850 one time that had the wrong ohm coils on it and it did the exact same thing till I replaced them then it was fine. Just another thing to check.Comment
-
running probs
how do, it sounds like fuel to me or is it called gas in the us, check the fuel comes out of the tap, or it could be a problem i had when the breather hole was blocked in the fuel tank cap, take the cap off alltogether and run the bike, if your bike has a breather pipe from the tank make sure its not blocked, best of british luck old boy.Comment
-
battery is new theres plenty of fuel and lively spark..i dont understand why it dies like i turned it off myself...wrong ohm coils??how do i check this??the coils i have dont say anything on them except Tec on one side and the letter P on the other.does not have + or - either for ignition hook up.Comment
-
Was this something that happened after you worked on carbs? Did you just get the bike and don't know? If this is a new problem it's probably fuel related as previously mentioned, Is your petcock hooked up right? Have you got 4 inches of fuel in tank? Screen on petcock plugged? Lever on petcock pointing straight down? Smaller line to carb nipple? 79 and older take a dif. ohm coil than the 80 and newer. That was my problem when I bought the bike. Previous owner took bike to shop and they installed wrong coils, as an upgrade.Comment
-
this has been a past problem....rebuilt the carbs to have a fix but it didnt help....how can i test my coils?Comment
-
The way I discovered my problem was that I had a test light monitoring the coils and the bike running. The spark would just die out. I just ordered stockers used off Ebay and replaced them. I don't really know how the test goes. Maybe start a new thread asking if anyone knows how to test ohms on a coil.Comment
-
This is Earlfors Explanation.
Comment
.png)
Comment