Waking a bike up from slumber - Wrist Twisters
 
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post #1 of 7 Old 03-28-2014, 09:23 PM Thread Starter
(Quintus) Pilus Prior
 
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Waking a bike up from slumber

Well, my buddy just picked up a bike from his boss... 2000 cbr 600f4 with 13,000 miles for 1500 bucks... Only bad with the bike is the fairing is cracked where the left turn signal mounts, and it hasn't been started in 3+years. I got contracted to wake it back up again, so I'm changing all the fluids, (oil, break fluid, coolant, gas) and getting everything cleaned and back in adjustment... It started right up once we charged the battery and got fresh gas in it, but will only idle and with the choke on full, and after working on it a while I've gotten it to blip a couple hundred rpms but it still always dies right after, so it looks like I'm gonna have to pull the carbs tomorrow. I was excited when he first told me the bike was an f4i, but obviously we can't all get lucky...

Any other suggestions on things to look out for/change/adjust on a bike that's been sitting so long?
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Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #2 of 7 Old 04-01-2014, 06:58 PM
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If it was an F4i, you wouldn't have to mess with the carbs.

Anyway, these engines are basically bulletproof!

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post #3 of 7 Old 04-02-2014, 01:22 AM
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I did the exact same thing on a F4 last year for a friend. It sat for years ... chain, tires, fluids and a good once iver and she was back to her preivous yellow glory!

Have u lifted the tank and checked the airbox? Might have a mouse nest? Alos check the choke and throttle linkage on the rack to make sure its actuating and returning properly.

After that its proabaly carbs ... I would drain the tank again & bowls. Then refill with a stabil/seafom heavy fuel and let them soak for a bit.

If that gets u no where, commit to pulling the rack off and giving it a good overhaul and cleaning.

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post #4 of 7 Old 04-02-2014, 10:14 AM Thread Starter
(Quintus) Pilus Prior
 
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The airbox had some bugs and stuff in it, but nothing unexpected... ending up pulling the carbs and they were pretty aweful. Everything coated in a thick green gunk, one primary completly blocked, all four idle jets clogged, all four needles coated. got the primary to clear after soaking in carb cleaner for a couple days and poking it out with a wire, wasn't so lucky on the idle jets... have new jets coming and hopefully that fixes the problem.
This being a carbed bike and mechanically timed as far as I know, any idea what the throttle position sensor is there for?

Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #5 of 7 Old 04-02-2014, 12:39 PM
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The bike has an ecu for ignition maps. This is what the throttle position is for.

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post #6 of 7 Old 04-03-2014, 07:10 PM Thread Starter
(Quintus) Pilus Prior
 
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Can you tell which are which? it's amazing what a little cleaning and new jets will do... This bike is surprisingly comfortable and fun... I kinda want one now...
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Love is the feeling you get when you like something as much as your motorcycle - Hunter S. Thompson
I just mı̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̸̨ade you wipe your screen.
-2009 Suzuki GSX-R 750 Race Bike
-2007 Honda 919
-1995 Nighthawk 750 (Tboned)
-1983 KZ 440 (Sold)
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post #7 of 7 Old 04-04-2014, 04:37 AM
Ian
 
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Nice work! I found my friends F4 to be an absolute blast, it was really stable and fun!

BTW if you wanted to clean those old jets just soak them in Mopar Penetrating fluid, its an amazing cleaner for crab parts ..... info in this thread.

https://www.wristtwisters.com/forums/...arb-35889.html

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