GK76a 1990 won't start

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rgvsp
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Re: GK76a 1990 won't start

Post by rgvsp »

djheard91
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Re: GK76a 1990 won't start

Post by djheard91 »

Thanks, I'll give them a check when I get chance :)
djheard91
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Re: GK76a 1990 won't start

Post by djheard91 »

So I've managed to get the bike running finally, now for the next issues.
I have two pipe connectors between the breathers and fuel rail on my carbs. They seems to be a vent to the float bowls but should these be connected to anything? I had no pipes on there but this seems like an easy way to fill your carbs with dirt.

The bike also wont idle at low revs, it just revs high and wont drop. The throttle is dropping back to the stops (so not jammed on) as is the choke and the idle screw is out. I also don't think air is getting at the rubber seals although I haven't replaced them. Any other suggestions?

Also I can't tell you what the bike is revving to because the clocks have decided not to work. Any help is greatly appreciated thanks.
stripes1976
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Re: GK76a 1990 won't start

Post by stripes1976 »

djheard91 wrote:So I've managed to get the bike running finally, now for the next issues.
I have two pipe connectors between the breathers and fuel rail on my carbs. They seems to be a vent to the float bowls but should these be connected to anything? I had no pipes on there but this seems like an easy way to fill your carbs with dirt.

The bike also wont idle at low revs, it just revs high and wont drop. The throttle is dropping back to the stops (so not jammed on) as is the choke and the idle screw is out. I also don't think air is getting at the rubber seals although I haven't replaced them. Any other suggestions?

Also I can't tell you what the bike is revving to because the clocks have decided not to work. Any help is greatly appreciated thanks.
Pm me your phone number and I'll call you when I'm home. Can't right now as little one is asleep in the car and it would wake her [emoji72][emoji99]
djheard91
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Re: GK76a 1990 won't start

Post by djheard91 »

Thanks Stripes got her running and took her around the block for my first ride. I need an MOT badly :grin:
dobbslc
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Re: GK76a 1990 won't start

Post by dobbslc »

Make sure the carbs are balanced properly as they can cause poor running.
I found on mine that turning the pilot screws out sorted the high idle,, try half a turn each and see what happens, a screwdriver bit in its holder works well here just mark it so you can tell how far you turn the screws.
Be aware that an air leak also causes this.
stripes1976
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Bike owned: 6 gk76a's, nc29
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Re: GK76a 1990 won't start

Post by stripes1976 »

Hey Dan.
I'm glad we got you sorted yesterday. As I said on the phone when you have more time let me know and we'll get the fine tuning done. Now you have a good base to work from it's just going to be small adjustments now. [emoji6]
djheard91
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Re: GK76a 1990 won't start

Post by djheard91 »

All the help is really appreciated and I'm moving your way for work in September so I might be in contact to see what you think :)
stripes1976
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Posts: 399
Joined: Sun Jun 01, 2008 7:14 pm
Bike owned: 6 gk76a's, nc29
Location: 76a mod shop
Re: GK76a 1990 won't start

Post by stripes1976 »

Well looks like we might have to get you booked in when you move and get it set up properly [emoji6]
djheard91
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Joined: Tue Feb 17, 2015 8:59 pm
Re: GK76a 1990 won't start

Post by djheard91 »

Sounds perfect, I look forward to it. Hopefully I'll have plenty of information on how well it rides by then :grin:

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