 Big bore options for a 2003 Speedie
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Joined: Aug 2007
Posts: 120
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OP
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Joined: Aug 2007
Posts: 120 |
Folks: What are my options to do a big bore on this bike. Is machining, etc (i.e. something I can't do on the kitchen table)required?
I'm at best an average mechanic, but I'm not opposed to doing anything. I've done plenty of work on bikes in the past and have access to folks more qualified than myself should I get in over my head. Honestly, I'd look forward to the challenge, though I must admit I'm ignorant on the work involved. Which I suppose begs the stupid question: do the kits come with instruction? Also, what other work is required if you go to a BB kit, new cam, clutch, etc?
I'm only thinking about the 904 kits out there, nothing to drastic. Any advice on manufacturers or your experience doing the work or with the results much appreciated.
TIA
john
I see a chrome bike and I want to paint it black.
1972 CB500, fully stock and purrs like a kitten
2003 Speedmaster: TOR Shorties, AI removed, Freak kit, more to come...
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2009
Posts: 1,228
I live in the sun downunder
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I live in the sun downunder
Joined: Jan 2009
Posts: 1,228 |
To the best of my knowledge the 904 kit requires the existing sleeves to be pressed out of the barrels (jugs). Machining the jugs to the correct tolerances. Pressing in the new sleeves. Not a kitchen table job.  A lot of guys on this forum have done the big bore so advice won't be a problem. 
FrankW
Ex Speedmaster rider, went to the Dark Side now riding an America.
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 1,382
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,382 |
D&D in Pensacola has the kit that comes with barrels already bored out so you don't have to press in your own liners. Overall price is very comparable to kit + machine work. Big Bore Kit
Tony G
'03 America
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 1,823
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,823 |
Quote:
Folks: What are my options to do a big bore on this bike. Is machining, etc (i.e. something I can't do on the kitchen table)required?
I'm at best an average mechanic, but I'm not opposed to doing anything. I've done plenty of work on bikes in the past and have access to folks more qualified than myself should I get in over my head. Honestly, I'd look forward to the challenge, though I must admit I'm ignorant on the work involved. Which I suppose begs the stupid question: do the kits come with instruction? Also, what other work is required if you go to a BB kit, new cam, clutch, etc?
I'm only thinking about the 904 kits out there, nothing to drastic. Any advice on manufacturers or your experience doing the work or with the results much appreciated.
TIA
john
here is a very good read on BB kits and how it's done.. web page he is a member/mod on the forum..and a will help any way he can ..and you can do the BB kitt were every you want
you leave the motor right in the bike..for the 904 kit..
you don't say were you live..maybe some other member close by had it done .and could give you info on were to take you heads & jugs for the work needed to get all you can out of the 904 BB kit..
Ed 
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Re: Big bore options for a 2003 Speedie
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Joined: Aug 2007
Posts: 120
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OP
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Thanks all for the input.
Ed, yep, thanks much. It always amazes me that we've got guys like Pat out there that not only work, and ride, but do this kind of work, AND take the time to share so much knowledge with the rest of us. They make the internet a great resource for sure.
I'm in Central Ohio BTW, guess I need to update my bio info.
I see a chrome bike and I want to paint it black.
1972 CB500, fully stock and purrs like a kitten
2003 Speedmaster: TOR Shorties, AI removed, Freak kit, more to come...
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 2,531
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 2,531 |
sent mine(jug exchange) to Bill Gately in Florida... the kit has performed flawlessly since it was put on 25K miles ago had a mechanic buddy put rest of kit together....big difference with the 904...IMO
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 4,932 Likes: 2
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 4,932 Likes: 2 |
I did the 1050 triple kit last year
we should do this every weekend!
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 6,308 Likes: 4
Worn Saddle
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Worn Saddle
Joined: Jan 2005
Posts: 6,308 Likes: 4 |
Quote:
I did the 1050 triple kit last year
Yota Theme Song
A word to the wise is not necessary. It is the stupid ones who need the advice.
Pat
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Re: Big bore options for a 2003 Speedie
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Joined: Aug 2007
Posts: 120
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That's harsh... 
I see a chrome bike and I want to paint it black.
1972 CB500, fully stock and purrs like a kitten
2003 Speedmaster: TOR Shorties, AI removed, Freak kit, more to come...
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Re: Big bore options for a 2003 Speedie
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Joined: Jan 2005
Posts: 4,932 Likes: 2
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 4,932 Likes: 2 |
we should do this every weekend!
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Re: Big bore options for a 2003 Speedie
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Joined: Aug 2007
Posts: 120
Adjunct
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while I save my money I'll take any input on a shop in ohio the can do some of this machining. Pat, I may need to come back and ask you about jetting sizes. You and I have the same but otherwise minus the big bore kit. Thanks.
I see a chrome bike and I want to paint it black.
1972 CB500, fully stock and purrs like a kitten
2003 Speedmaster: TOR Shorties, AI removed, Freak kit, more to come...
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Re: Big bore options for a 2003 Speedie
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Joined: Sep 2010
Posts: 322
Adjunct
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TonyG thanks for the heads up. D&D has been doing work on my bikes since 1993 (they do what i dont want to  ) I didnt know they had the BB kit, I'm gonna have to pay them a visit this weekend!!! Thanks
"stupid's in the water these days, they're gonna drink it anyways, until they don't know right from wrong..."
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