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help engine not working probs

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Old 07-28-2008, 07:27 PM
  #1
karl thomas
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Default help engine not working probs

hi i have a 30cc cy with a 603 carb it was working like a dream then i got some new fuel from bp (im in the uk) and some 2 stroke oil out of the bp garage mixed it 25/1 worked ok bit laggy then the idle was uncontroboble i rely do mean that the low end needle does nothing now i can screw it all the was out and it still revs like its at 1/3 throtal any idears why ????
also iv put the carb onto a like new 26cc zen i have lying around same thing also the idle is some times very high but thn just does for no reason iv checked all gaskets...fine
is the carb just fu**
now running the gold 2 strole oil make by king cobra and 97% octain fuel same thing


ps sorry for spelling
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Old 07-28-2008, 07:44 PM
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Default RE: help engine not working probs

Pull the needles all the way out and flush with some fuel and check for dirt or debrie in them. You might want to disassemble the carb and clean it out if that doesn't help.
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Old 07-28-2008, 07:46 PM
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karl thomas
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Default RE: help engine not working probs

iv tryed that i just want to make shure that it is the carb
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Old 07-29-2008, 05:01 AM
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Default RE: help engine not working probs

You didnt buy the special BP 'racing fuel' did you?
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Old 07-29-2008, 05:55 AM
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karl thomas
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Default RE: help engine not working probs

no just the normal stuff
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Old 07-29-2008, 06:47 AM
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Default RE: help engine not working probs

suspected some clogging
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Old 07-29-2008, 06:59 AM
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Default RE: help engine not working probs

Bogging is a air leak in the carborator. You said you took the carb of and put it back on. You disturbed the seals. This rusults is poor Idle'stalling and low rpm. Other problem is the oil mix.
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Old 07-29-2008, 07:44 AM
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karl thomas
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Default RE: help engine not working probs

oil mix is dead on 25/1 the carb seals look perfict ps i tock the carb of after the problem started
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Old 07-30-2008, 08:28 AM
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Default RE: help engine not working probs

All symtoms point to a air leak in the carb or gas tank. replace with a new carb repair kit. The oil mix will start to cause problems soon.
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Old 07-30-2008, 09:42 AM
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karl thomas
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Default RE: help engine not working probs

lol ok thanks any was i have a carb on its way
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Old 08-02-2008, 05:32 AM
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karl thomas
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Default RE: help engine not working probs

got the new carb now it runs much better rocl solid idle thanks for all your help
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Old 08-02-2008, 08:30 AM
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Default RE: help engine not working probs

I knew it was the carb. All you needed was a carb kit (less than $10). Cheaper than a new carb. The problem will haunt you again unless you know exactly what was the problem was first.
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Old 08-02-2008, 09:10 AM
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karl thomas
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Default RE: help engine not working probs

well put it this was i got the carb for only £8 whitch is cheeper than a repaer kit any was (i love ebay lol) and im never going to use the bp 2 stroke oil agin lol
i do wish i knew as well
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