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Old 18-01-24, 02:04 PM   #21
kickaha
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Default Re: Bike cuts out after revving

Picked up bike, it seemed to run fine. They went through a few things, but settled on cleaning out injectors, which had accumulated a significant amount of black stuff, and werent operating right. Would spray way too much fuel (could even smell it when riding).

Riding it normally, gives a fun melody of decel pops, but this time it did "backfire" pretty loudly once, which got me worried. That would previously happen just before the engine would cut out.

For about an hour, I was riding without further issues.

Then I pulled over for a bit, paused for a few hours, and set off again, and this time it cut out twice, just as before. I turned off engine, paused for a few minutes, and set off again, giving it as much throttle as I could. It went fine.

Called mechanic and the recommendation is to replace throttle bodies. I suggested battery change (thanks to Bibio's suggestion), and was told its not needed. But i feel Bibio may be right. Time to order a set of throttle bodies and a decent battery.
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Old 18-01-24, 02:24 PM   #22
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Default Re: Bike cuts out after revving

Quote:
Originally Posted by mister c View Post
Or just buy a Gen 1.... Carbs are king


Only joking. Hope it gets sorted quickly
yeah, always wanted a curvy because felt they were just so unqiue looking and beautiful. Not sure how I didnt end up with one.
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Old 22-01-24, 02:40 PM   #23
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Default Re: Bike cuts out after revving

Ok so the saga took a nastier turn, and its all about rust.

My tank was rusting and the fuel pump is a heap of **** loaded with rust and working from time to time.

So I am in search of a K5 compatible fuel pump replacement (1000 new).

If anyone else has the same sort of issues, I recommend the moment mechanic suggests looking at injectors, you get them to check fuel pump first.

Cheers all. Hope to have good news soon.

p.s. If anyone has a fuel pump they're looking to sell, give me a shout (although looking to buy one today).
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Old 22-01-24, 04:52 PM   #24
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Default Re: Bike cuts out after revving

I may have got something wrong but listed on ebay for about 50 for a K5
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Old 23-01-24, 01:49 PM   #25
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Default Re: Bike cuts out after revving

Thank you redtrummy. got one from ebay, and its on the way.
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Old 29-01-24, 03:20 PM   #26
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Default Re: Bike cuts out after revving

Any progress on this then kickaha?
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Old 29-01-24, 03:47 PM   #27
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Default Re: Bike cuts out after revving

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Any progress on this then kickaha?
hey thanks for checking back. no change yet, as its getting repaired today (head mechanic works mon - wed).

hopefully I have good news by end of day, so unless I hear differently, the solution was:
- replace fuel pump
- clean injectors (again)
- finish cleaning tank (was in process from last week)

will update once its done.
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Old 29-01-24, 09:42 PM   #28
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Default Re: Bike cuts out after revving

Excellent, thanks for the update.
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Old 30-01-24, 11:15 AM   #29
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Default Re: Bike cuts out after revving

So nothing new today...the tank is still being cleaned. Previous efforts didnt get it perfect, so they're trying a new chemical and will update tomorrow.
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Old 11-02-24, 07:55 PM   #30
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Default Re: Bike cuts out after revving

And for the final post on this issue, as a thank you to everyone that helped, and just in case anyone has the same issue.

Verdict: rust in tank, blocked fuel pump and injectors.

Solution: clean tank, replace fuel pump (approx 100 on ebay, 1000 new from suzuki, take your pick), and clean injectors (using Fuel Injector Cleaner Kit).

That solved the problem, and am now running a responsive, fast and reliable bike again. Have just come back from the first long ride and its as good as new.

Thanks again to all that advised/helped, and many happy safe rides to all.
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