CBR 600F2 1991 - 1994 CBR 600F2

Anybody built a 637cc F2?

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Old Nov 11, 2011 | 06:40 AM
  #11  
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Sweet! I just get bored over the winter and like to tinker. i have already done the GSXR inverted fork swap w/ 6 piston brakes, Fox twin clicker rear shock, F23 conversion, Renthol Bar mounts(made the mounts on the bracket), Yoshi race header and exhaust. This is what I do over the winter. I just wonder any problems from it might not being streetable?
 
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Old Nov 11, 2011 | 12:34 PM
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Nice move on the inverted forks and 6piston brakes. That must be good.

In the end, what you're really fighting is chassis issues unfortunately.
 
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Old Nov 11, 2011 | 03:53 PM
  #13  
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Originally Posted by JesseAwesome
Nice move on the inverted forks and 6piston brakes. That must be good.

In the end, what you're really fighting is chassis issues unfortunately.
Unfortunatly, you are right. I use a '905 Racing' (racing, not stunt) cage to keep the frame from flexing. But it unfortunatly breaks the welds on the washers that connects it to the frame. With my weight(200LBS) and the inverted forks the frame flexing continues. I wish the frame was beefier.

I beat on my bike on the twisties(hence the inverted forks w/ 6piston brakes, fox rear suspension, F23 conversion and the Yoshi Race headers and exhaust) and love my bike. I still love the saying 'Bikes should be built, not bought' motto. It is the greatest feeling when you pass R1's on the twisties with them wearing full leathers and knowing you are way under powered to them and riding an outdated machine.I could go out and buy a new bike, but it wouldn't be a 'Ratted Out Streetfighter' that fits my exact needs and it keeps asking for more.

That is why I would like to do more, but would it be 'Streetable'?
 
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Old Nov 11, 2011 | 05:40 PM
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I can respect that. I value that about every bike I'm on, it's always been well maintained and serviced by myself, frequently with modifications and attention delivered by myself.

I can't really speak on the matter, but I know some one you can call.

Doc Browns Motorcycles here in portland Oregon. The owner is a former AMA racer and honda factory rider from back in the 80's. He's got an F2 big bore kit juts lieing around his shop, and that grumpy old **** would be able to help you.

Start the conversation with telling him you heard he has that kit though, then follow it up with the questions. If you ask questions first he'll just grump you right off the phone.

Ask specifically for Jean (The Doc himself).
 
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Old Nov 11, 2011 | 05:41 PM
  #15  
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Dr. Brown Motorcycle | Your source for low prices and hard to find items.

503.232.5150
 
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Old Nov 11, 2011 | 08:43 PM
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Originally Posted by underground-mpyre
I just wonder any problems from it might not being streetable?
You won't have any issues there.
 
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Old Nov 12, 2011 | 03:54 PM
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Originally Posted by JesseAwesome
Nope, no avail. Only a kit for the 900 unless you can refresh his memory. Thanks though.
 
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Old Nov 12, 2011 | 11:35 PM
  #18  
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Originally Posted by underground-mpyre
Well I know the F4i Intake cams will work on the intake side and swapping the F2 intake cam to the exhaust is what some do for a cheap fix for racing cams.

I have a working motor on the bike all ready. But want a winter project. Supposedly the F4i pistons are 2mm over the the F2 size and would only need at that point the case bored.
can anyone confirm this for me? Or point me in the right direction of who to ask?

I've got a F2 engine I'm rebuilding and I need to bore out the pistons (rust got in on the #3 cylinder)
I think the rust is too far into the cylinder for just a hone job... so I think I'll need to bore them out and I have heard that you can use f4i pistons as above and I just want to make sure before I do it... I'd rather buy some used f4i pistons for $100 instead of a brand new set of wisecos for $500.

Thanks!

Kaz
 
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Old Nov 14, 2011 | 02:05 PM
  #19  
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For some reason, I have tried to bring up the article here at work and cannot for some reason to paste it. Google it F4ipistons and camshaft in a f2t.
 
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Old Nov 14, 2011 | 05:33 PM
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Originally Posted by underground-mpyre
Nope, no avail. Only a kit for the 900 unless you can refresh his memory. Thanks though.
He must have sold it. It was hanging up on his shop wall FOREVER when I had my F2. I think he strategically put it there so I'd have to look at it every time I went in there, heh.

If you're ever in Portland Oregon stop by there and check it out.
 
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