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Old 26-05-18, 08:55 PM   #11
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

Hi,
I tried with and without choke. Similar results.

It fast idles very briefly before stopping.

No response to throttle. Maybe cuts out to quickly for throttle twist to take effect.

I think it's an hour or so before it will restart.

I have not tried it with petrol filler cap open.

Where would I get a rebuild kit?

Tanks for the advice,

J





Quote:
Originally Posted by Seeker View Post
Are you using choke?
How does it respond on choke - does it fast idle briefly before stopping.
Once it's started does it respond to throttle?
How long do you have to wait before it will restart?
Have you tried starting it with the petrol filler cap open?

Carb rebuild kits are available for the curvy. Be careful with the carb screws they tend to be quite soft and are JIS headed not Philips although they look similar. Once you get the float bowls off you'll get a better idea if it's a dirt issue.
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Old 26-05-18, 08:59 PM   #12
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

That sounds interesting. I'd certainly like to try that before doing the strip.

If you could send me one, or tell me where I could buy one, that would be great

Thanks

J


Quote:
Originally Posted by netsurfer View Post
B3C sell a product specifically for this situation called “mechanic in a bottle” I work for one of the UK distributors of the product so if you would like to try it give me a shout I will send you one over to try prior to stripping the carbs.

May just save you the hassle.






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Old 26-05-18, 09:02 PM   #13
netsurfer
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Default Re: K1 starts but cuts out after a second or two.

You will need 2x Choke plunger O-rings Suzuki p/n 1327818E20 and bowl gaskets (rubber o-ring type) which will probably be in the carb repair kit, if not these are Suzuki p/n 1325833E00

Not got my service kits yet, but seems like there are loads online.
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Old 26-05-18, 09:04 PM   #14
daktulos
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Default Re: K1 starts but cuts out after a second or two.

Have you checked the vacuum to the petcock or fuel pump? (I'm not familiar with the K1, but it sounds like it's running from fuel in the float bowl and then getting no more, the hour could be it dripping through.
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Old 26-05-18, 09:42 PM   #15
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

Hi,
I've started it with and without choke - no real difference.
It does fast idle briefly before stopping.
I can restart it after an hour or so.
I have not tried to restart it with the petrol filler cap open.

Just googled some carb rebuild kits - thanks.

Quote:
Originally Posted by Seeker View Post
Are you using choke?
How does it respond on choke - does it fast idle briefly before stopping.
Once it's started does it respond to throttle?
How long do you have to wait before it will restart?
Have you tried starting it with the petrol filler cap open?

Carb rebuild kits are available for the curvy. Be careful with the carb screws they tend to be quite soft and are JIS headed not Philips although they look similar. Once you get the float bowls off you'll get a better idea if it's a dirt issue.
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Old 26-05-18, 09:44 PM   #16
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

Thanks,

Just googled some sources,

Quote:
Originally Posted by netsurfer View Post
You will need 2x Choke plunger O-rings Suzuki p/n 1327818E20 and bowl gaskets (rubber o-ring type) which will probably be in the carb repair kit, if not these are Suzuki p/n 1325833E00

Not got my service kits yet, but seems like there are loads online.
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Old 26-05-18, 09:48 PM   #17
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

Vacuum to tank tap and to fuel pump is okay. I had petrol pumping into a bottle while turning over the engine.
It seems like a float thing is sticking but I wouldn't thought that both would stick at the same time. It's been idle for several years so that could well be the case.

Thanks.

Quote:
Originally Posted by daktulos View Post
Have you checked the vacuum to the petcock or fuel pump? (I'm not familiar with the K1, but it sounds like it's running from fuel in the float bowl and then getting no more, the hour could be it dripping through.
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Old 27-05-18, 06:56 AM   #18
Seeker
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Default Re: K1 starts but cuts out after a second or two.

Quote:
Originally Posted by ejohnh View Post
It's been idle for several years


With that bit of info it is guaranteed that most of the jets, airways, float valves will be gummed up. I think you are about to take a crash course on SV carbs.

Even before they started putting ethanol in petrol, you would get gum deposits from being idle that length of time, ethanol has exacerbated that.

If netsurfer's magic miracle liniment doesn't work, there's a place in Nantwich, Cheshire that offers an ultrasonic cleaning service for carbs.
http://www.harpers-ultrasonic.com/

I've never used them nor do I know costs but, worst case, there are usually loads of carb sets on ebay, but hey, the genie in a bottle may work.

If your petrol is 3 years old I would definitely dump it and start with fresh.
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Old 27-05-18, 12:13 PM   #19
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

Yes, I'll do all of that. A mate of mine has what he calls a sonic cleaner. How do they work?
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Old 27-05-18, 12:20 PM   #20
ejohnh
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Default Re: K1 starts but cuts out after a second or two.

First I'll try the Mechanic in a bottle. If that fails I'll whip the carbs off for a close look.
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