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Old 29-06-09, 09:16 PM   #1
Phaelok
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Default Carb Help.

Desperately need some help now with carbs!

I had my bike restricted in 2008, by JHS, they drilled two holes in the carb slides on my SV650 and farted with the fuelling. They made it over rich making my plugs always coke up. So with much help from the all-mighty friend of mine who is a mechanical god, he pulled out the slides and bike had more power. But alas, the bike didnt rev cleanly. It snagged around 7k rpm and wouldnt rev cleanly after that.

Looking at going down a few alleys, Ive got some stock carbs down at a friends which i bought from ebay. I was wondering if it was possible to slot the new carbs on and get them timed - would that work or would the fuel/air mix need to be arsed about with too?

If i take the carbs to a garage to fit them, how much am i looking for the carbs to be fitted + balanced? I dont want any fancy dyno trickery, just for the bike to run right. My plugs are coking up bad. The bike doesnt idle right and its getting harder to start. Plus my fuel money is going through the roof atm.

Any and all thoughts appreciated!

Last edited by Phaelok; 29-06-09 at 09:18 PM.
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Old 30-06-09, 09:22 AM   #2
Biker Biggles
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Default Re: Carb Help!

Rough running on a curvy?Always check the choke cables and choke plungers first.If they are sticking it will cause the bike to run rich on one or both cylinders.
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Old 30-06-09, 11:32 AM   #3
johnnyrod
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Default Re: Carb Help!

If the exhaust etc. is still stock then the stock carbs with stock jetting etc. wil go straight on. Yes they'll need synching (balancing) but this isn't a big job and it'll start without them being balanced yet. Changing carbs should be under an hour all in.
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Old 30-06-09, 12:00 PM   #4
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Default Re: Carb Help!

I have just taken delivery of a set of vacuum guages

; )

Never used em before but can't be that hard
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Old 30-06-09, 01:52 PM   #5
johnnyrod
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Default Re: Carb Help!

Not too hard, take a look at this

www.bikeguru.co.uk/carbs.html
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Old 30-06-09, 08:28 PM   #6
Spanner Man
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Default Re: Carb Help.

Good evening all.

I've seen one or two JHS 'prepared' bikes in the past. Not impressed I'm surprised yours still runs at all!

If you want a garage to strip & check the carbs over before fitting, expect to pay around 2 hours labour. Certainly no more than 2.5 hours.
For fitting alone an hour to 90 minutes should do it.


Cheers.
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Old 30-06-09, 09:09 PM   #7
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Default Re: Carb Help!

Quote:
Originally Posted by johnnyrod View Post
Not too hard, take a look at this

www.bikeguru.co.uk/carbs.html

There you go Phaelok org teamwork can help you out..
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Old 30-06-09, 09:17 PM   #8
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Default Re: Carb Help!

Stretch you muppet....

I have a set that I have no more need of..... 4 cylinder version....

well, you could have 'borrowed' them.. like you borrowed Bens spanners !
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Old 01-07-09, 08:12 AM   #9
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Default Re: Carb Help.

That's slander....

And Ben got them back (about 3 weeks ago)
; )
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Old 01-07-09, 02:14 PM   #10
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Default Re: Carb Help.

You can get away with 2 gauges for anything really
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