98 CBR900RR - Starting after sitting many years
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98 CBR900RR - Starting after sitting many years
Hi I am new to the forums. I have a 1998 CBR 900RR that has been sitting a few years and I am about to try and start. I am almost certain the carbs will need to be cleaned (I've tried this in the past) but am wondering if it would harm anything if I just simply try to start it, in case I get lucky and it will actually start?
I would really rather not mess with the carbs again if not needed. In the past I have tried to clean them myself and it didn't work (I ended up buying a new set).
I am tempted to drain the old gas out and put fresh gas and see if it will start. Perhaps using some starting fluid?
Any help is appreciated!
I would really rather not mess with the carbs again if not needed. In the past I have tried to clean them myself and it didn't work (I ended up buying a new set).
I am tempted to drain the old gas out and put fresh gas and see if it will start. Perhaps using some starting fluid?
Any help is appreciated!
Super Moderator
Joined: Mar 2013
Posts: 7,177
Likes: 404
From: Alabama
Hey there.
i can 99.9999% guarantee you will need to go through the carbs. If therre has been fuel sitting in them, there will be varnish and everything thing else in there. The rubber bits will likely need to be replaced.
As to the other things, I would remove the spark plugs and put a teaspoon or so of oil in each of the spark plug holes. Let it sit over night then push the bike around with it in gear. This will get some lubricant in the cylinders in a non violent manner
i can 99.9999% guarantee you will need to go through the carbs. If therre has been fuel sitting in them, there will be varnish and everything thing else in there. The rubber bits will likely need to be replaced.
As to the other things, I would remove the spark plugs and put a teaspoon or so of oil in each of the spark plug holes. Let it sit over night then push the bike around with it in gear. This will get some lubricant in the cylinders in a non violent manner
Senior Member
Joined: May 2011
Posts: 1,988
Likes: 439
From: Mesa, AZ
Guaranteed carbs are buggered! Just send to pros for restoration job. Expert workmanship, reasonable fees, and quick-turnaround. Bike will run like brand-new off showroom floor.
https://customcarbservices.com
https://customcarbservices.com
Last edited by dannoxyz; Jul 12, 2023 at 09:22 PM.
Senior Member
Joined: Apr 2015
Posts: 708
Likes: 187
From: Connecticut / Florida
The "rubber bits" on my carbs are still good after 27 years - I don't see why they would be bad by default on this bike.
Also if the carbs are dry, any fuel evaporated years ago - there was only one bowl of fuel in the carbs - plus fuel was better then.
I would change the oil, check the water, pull the plugs and turn over the bike (with the fuel off) to make sure there's nothing in the bores - squirt some in by all means in case the rings have seized (unlikely), drain the tank and rise it out with some carb cleaner, then put a gallon of good gas in it and see what happens.
Highly probable the carbs need going through, but who knows - the OP might be lucky! No need to jinx things.
Also if the carbs are dry, any fuel evaporated years ago - there was only one bowl of fuel in the carbs - plus fuel was better then.
I would change the oil, check the water, pull the plugs and turn over the bike (with the fuel off) to make sure there's nothing in the bores - squirt some in by all means in case the rings have seized (unlikely), drain the tank and rise it out with some carb cleaner, then put a gallon of good gas in it and see what happens.
Highly probable the carbs need going through, but who knows - the OP might be lucky! No need to jinx things.
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Omar Abdullahi
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Oct 26, 2017 08:26 AM