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Carb Leaking, couple questions for testing OFF the
- Nessism
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djturnz wrote: It did fill the bowls on prime, but did not over flow. I figured that maybe because the carbs sat totally dry for two weeks, maybe the seals needed some rejuvenation, so I decided to reinstall the bank.
I pulled the air box boots so the carbs would go in easier. It seemed to run fine, no drips. After 3 minutes, I sprayed water on the headers. Left, inside header wasn't as hot as the other 3.
Then after it had been off for a few minutes, I got a couple drips.
All this for changing the throttle cable.
35 year old motorcycles are like that. They need almost constant maintenance.
How much rust in the tank?
And how long since the last time you adjusted the valves?
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- djturnz
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I've not adjusted the valves. I realize it's probably needed. However, I'm from the troubleshooting belief that if something works, and then you change something, and then it doesn't work, it has to be the thing you changed that caused the problem. I know that's not always correct, but it just makes sense.
I forgot to add, I did pull the spark plug, and it was blackened (brand new last year), but with the excess fuel going through there, I'd imagine it would be a little caked up.
1982 KZ750 (4) LTD
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- Nessism
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Good luck
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- SWest
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- 10 22 2014
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Steve
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- djturnz
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But first I need to get it to stop leaking gas.
1982 KZ750 (4) LTD
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- Davidkz1r
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1982 KZ750 (4) LTD
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- djturnz
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The carbs are on without the air box boots. I wanted to let it idle for a bit and see if there would be more drips.
This morning I pulled the left two plugs just to compare them, then put them back.
I start the bike with the choke and it immediately back fires. I start it again and after a few seconds on choke, I switch it off and let it idle. Idle started to get choppy so I put the choke back on. Idle evened out and after about two minutes of idle, it back fired twice and shut off.
How do I go from a bike that runs great and needs a throttle cable, to a bike with a leaking carb, then the carb more or less fixes itself, and now back firing?
This is too much of a swing to be coincidence.
1982 KZ750 (4) LTD
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- djturnz
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Since I had gas pouring from every hole, it's possible some got into the engine oil.
I'll change it this after noon if I can find an oil filter locally.
1982 KZ750 (4) LTD
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- Skullcrusher
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Bikes: 82 kz750 CSR, 03 Suzuki gsf1200s (stage 2), 73 CB 750 bored to 849, big cam, ports head, big valves, lots of other goodies....
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- djturnz
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Right now I need to figure out the backfiring.
Tomorrow I will change the oil and filter, and put new plugs in. I'll also reattach the air box.
And see what happens.
1982 KZ750 (4) LTD
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