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Enduro Engine 4 stroke (including EFI & Exhaust) 4 stroke engine, EFI, and exhaust discussion


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  #1  
Old 12-27-2015, 10:38 AM
Victory6541 Victory6541 is offline
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Default Gg 450fsr 2010

I have a odd problem with My bike. Im looking for ideas what it could be.

The bike runs fine while idle. If I turn the throttle slowly it revs somewhat ok. But if I turn quick it wants to die. Something like it's choking itself. I feel like I've checked everything.

Kind regards Jocke. And appreciate any ideas and tips


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Old 12-27-2015, 01:38 PM
hadfield4wd hadfield4wd is offline
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Default Gg 450fsr 2010

Old gas? How long has it sat? When was the last time you pulled the carb and dissembled and cleaned it?
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1999 GG EC 250 Six Days
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Old 12-27-2015, 02:45 PM
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barossi73 barossi73 is offline
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Agree with hadfield.start with carb clean and fresh fuel.iv had a partially blocked main jet cause similar,and also if you have sucked some water this can happen.check tank flow/filter also.I'm assuming you have a clean/new air filter,decent condition plug/lead.while you're on the carb check your float level is ballpark and all the breather tunes are clear.
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Old 12-27-2015, 06:43 PM
schlitzy schlitzy is offline
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This bike should be injected
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Old 12-27-2015, 07:09 PM
hadfield4wd hadfield4wd is offline
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Well clean the injector then.
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1999 GG EC 250 Six Days
1999 Cagiva Gran Canyon
2001 Aprilia Falco
2001 Triumph Speed Triple for my 20 year old
2000 GG XC250 for my 20 year old
2003 Honda Rancher 350 for the wife
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Old 12-28-2015, 12:47 PM
Victory6541 Victory6541 is offline
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It is a injektor indeed. Sparkplug is brand new.
I measured the valve clearance. According to a service manual the intake tolerance is 0.10-0.15 and exhaust 0.20-0.25

I couldn't get the 0.20 blade under either of the two valves on the exhaust.
At the intake I could get 0.10 blade in perfect and at the other I had to use a 0.15 blade to fit perfect

It also feels like it heating up to much as if it wants to start to boil. But water is circulating fine.

Injector cleaning something one can do by one self? Or perhaps it's best to drop it to a workshop
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Old 12-29-2015, 02:21 PM
Adam_redneck Adam_redneck is offline
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Try taking the injector out and take it to an auto
Shop that has an ultra sonic cleaner. Should fix the issue!
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