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Beta Rev 3 Cutting Out


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#1 fredro

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Posted 21 March 2012 - 08:15 PM

hi my beta rev 3 seems to be cutting out wen u give it a fist full. its fine on low revs soon as you give it some pastie it dies an misses any ideas why ?????? weve cleaned out the air filter an carb


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#2 skippy1234

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Posted 21 March 2012 - 09:24 PM

sounds like your carb may still have a bit of crap in and being starved of fuel ..... just my pennies worth tho

#3 naichuff

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Posted 21 March 2012 - 10:26 PM

My 200 Beta rev 3is doing the same It started to do this after the last section of the trial half way up the hill I thought at the time it was a plug, water or dirt in carb as it misses at higher revs Havent traced the fault yet

#4 nh014

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Posted 21 March 2012 - 11:51 PM

Experienced similar issues twice last season, on my 03 270 Rev3. Only fix was to completely strip the carb and blow out every orifice, jet, and passage with an aerosol carb cleaner.

Edited by nh014, 21 March 2012 - 11:52 PM.


#5 mcman56

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Posted 22 March 2012 - 12:23 AM

I had a similar event. After cleaning the carb many many times, I found that it was actually the stator. There are some resistance numbers you can check to verify the stator.

#6 nzralphy

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Posted 22 March 2012 - 07:36 AM

If you have the std Beta kill switch it could be that ..... they are horrible and don't work well.
I'm not half as good as I think I thought I was...

#7 naichuff

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Posted 22 March 2012 - 11:00 AM

My kill switch is the yamaha type and has been disconnected cleaned the carb out again cleaned the coil connetions new plug re moved the flywheel cleaned inside checked wiring from stator it was rewound a while back but the bike has not been used much Will run it up again tonight

#8 dan williams

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Posted 22 March 2012 - 01:33 PM

Have a look at your reeds as well. You may have a damaged one. If they are just slightly open though it's not a problem as they are forced shut by air pressure not the springyness of the material.

Is springyness even a word?

Actually I should add the question does it rev properly when slowly brought up to full throttle?

Edited by Dan Williams, 22 March 2012 - 01:34 PM.


#9 stork955

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Posted 22 March 2012 - 07:51 PM

Gday, ifit revs up ok slowly, check your ignition coil secondary resistance -measure between the plug cap and the primary wire. Sometimes corrosion at the cap terminal can cause this issue, or a shot coil.

Cheers,

Stork

#10 pindie

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Posted 25 March 2012 - 01:36 PM

I know this may sound simple but it may only be a blocked main jet?
Staying calm always helps. Science always wins.


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#11 0007

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Posted 25 March 2012 - 10:44 PM

Install a "spark gap tester" and ride the bike, it let's you increase the gap til spark fails and also ride with it installed, you can watch for loss of spark
If you have spark but the engine is not running, then you do not have an ignition issue
Simple
Washed up never was, trying to be a has been

#12 fredro

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Posted 03 April 2012 - 09:58 PM

hi my beta rev 3 seems to be cutting out wen u give it a fist full. its fine on low revs soon as you give it some pastie it dies an misses any ideas why ?????? weve cleaned out the air filter an carb



#13 fredro

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Posted 03 April 2012 - 10:00 PM

Hi chhers for all the help it tutned out to be carb trouble was more **** had been dragged through an i moved the needle up a notch seems to be fine now :D

#14 naichuff

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Posted 10 April 2012 - 07:07 PM

My Ht coil no readings on ht side so will spark at idle but not on full load Rode on Sunday no probs




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