Bike no start
Posted: Mon Jun 19, 2017 9:06 am
Hello all,
A little muddled and complicated this one. And I confess to the weather having made me lose my cool.
I pulled the carbs off to put bigger main jets in. Took the bike for a ride and it seemed a bit too rich at the top end. I rode home and the bike got a bit lumpy at idle. I turned it off. Took the carbs apart and put back to how it was. I started the bike, it ran for a bit - massive back fire then stopped.
Took the carbs back off (repeat this loop about ten times with decreasing enthusiasm and vocabulary) cleaned double checked and refitted. The bike never ran again. In the process I damaged the new litetek bowl seals so they leak a little now I've ordered some NRP ones instead as I wasn't too impressed with the fit of the Liteteks.
As a complete desperation action, I checked the spark. No SPARK!!!!! All four plugs wet. There was 12.xV on the coil but no connection to ground. I removed the side stand switch, it's 3Mohm pressed and 3Mohm not pressed. I guess this is goosed?
I don't have a wiring diagram for a GK73a, only a jap diagram for a 76a. So I can only guess at what is intent. I was busy dicking around with sidestand switch connections - which I do know makes no difference in neutral but I was getting quite irate after 7hours in the burning (for UK) sun. And all of a sudden I had spark again. It looked VERY random though. Strong but not ryhtmetic like I'm used to. I reconnected and tried to start again and all I get is the occasional coughing of trying to start.
It has new plugs and coils (1month old). Last time I checked it was 30kohm all in.
Any help? I got most disheartened yester, it was my birthday and it didn't feel at all fun!
Ignition pick-up? If so, any suggestions on where to get another?
Cheers,
Glen.
A little muddled and complicated this one. And I confess to the weather having made me lose my cool.
I pulled the carbs off to put bigger main jets in. Took the bike for a ride and it seemed a bit too rich at the top end. I rode home and the bike got a bit lumpy at idle. I turned it off. Took the carbs apart and put back to how it was. I started the bike, it ran for a bit - massive back fire then stopped.
Took the carbs back off (repeat this loop about ten times with decreasing enthusiasm and vocabulary) cleaned double checked and refitted. The bike never ran again. In the process I damaged the new litetek bowl seals so they leak a little now I've ordered some NRP ones instead as I wasn't too impressed with the fit of the Liteteks.
As a complete desperation action, I checked the spark. No SPARK!!!!! All four plugs wet. There was 12.xV on the coil but no connection to ground. I removed the side stand switch, it's 3Mohm pressed and 3Mohm not pressed. I guess this is goosed?
I don't have a wiring diagram for a GK73a, only a jap diagram for a 76a. So I can only guess at what is intent. I was busy dicking around with sidestand switch connections - which I do know makes no difference in neutral but I was getting quite irate after 7hours in the burning (for UK) sun. And all of a sudden I had spark again. It looked VERY random though. Strong but not ryhtmetic like I'm used to. I reconnected and tried to start again and all I get is the occasional coughing of trying to start.
It has new plugs and coils (1month old). Last time I checked it was 30kohm all in.
Any help? I got most disheartened yester, it was my birthday and it didn't feel at all fun!
Ignition pick-up? If so, any suggestions on where to get another?
Cheers,
Glen.