Fixing to put in the big bore kit..
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Fixing to put in the big bore kit..
I bought a 44mm Big Bore kit and am going to upgrade the non-running spree (weak compression). Since I am going to pull the whole motor off and clean everything up to do this, any other suggestions while I am in the process?
Any step by step do's and don't for replacing the cylinder?
Thanks!
sj
Any step by step do's and don't for replacing the cylinder?
Thanks!
sj
Re: Fixing to put in the big bore kit..
changing out is straight forward, but put a lite coat oil in the bore when slipping in the piston. oh and get your head milled to match the cylinder. i run a 90/80:1 premix along with my oil pump. and figue out if your going to use the stock air box or a free flow air filter. and get to your local honda shop and order some jets. part number 99101-187-0xx0 the xx replace with the jet size. did the kit come with a 95 or 100 jet? i run an 85. but use the 95-100 for break in. do heat cycles in 30-1 min up to like well i did up to 5 mins. oh and buy a few x-tra NGK BRS or bprs 6 heat range plugs.
1986 honda spree(silver fox)
BBK
85 head
SB50 intake
SB50 reeds
taz gears
2.75X10 tires
2000 honda elite S
prodigy vari
2k grabber clutch springs
9:1 gears
jdm tail lite
1982 suzuki FA50
BBK
85 head
SB50 intake
SB50 reeds
taz gears
2.75X10 tires
2000 honda elite S
prodigy vari
2k grabber clutch springs
9:1 gears
jdm tail lite
1982 suzuki FA50
Re: Fixing to put in the big bore kit..
Thanks!, the kit came will all the goodies - new jet, etc.
I've changed a lot of pistons and cylinders, but never in a spree.
sj
I've changed a lot of pistons and cylinders, but never in a spree.
sj
Re: Fixing to put in the big bore kit..
I want a spree
Last edited by HI808SYM on Thu Oct 13, 2011 5:58 pm, edited 1 time in total.
- fastplastic
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Re: Fixing to put in the big bore kit..
HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
Re: Fixing to put in the big bore kit..
fastplastic wrote:HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
.....
Last edited by HI808SYM on Thu Oct 13, 2011 5:59 pm, edited 1 time in total.
- bradthreee
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Re: Fixing to put in the big bore kit..
If you would like to revive the Spree, a BBK would be a good option, as long as your expectations are not high. The most you could get out of it would be 35-40mph. The only one making a BBK for it is Taz on this forum. He also sells them on EbayHI808SYM wrote:fastplastic wrote:HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
thanks so much for all the knowledgeable input.
sorry not everyone is such a super genious as yourself with these mopeds.
keep the dumb stuff to yourself.
If its speed your after, "Dude Swap in a Dio"
- fastplastic
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Re: Fixing to put in the big bore kit..
ok moron just trying to make sure you didnt buy a polini bbk for your nq50, your right not everyone is a genious so a lil input to save you some cash isnt always a bad thing....HI808SYM wrote:fastplastic wrote:HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
thanks so much for all the knowledgeable input.
sorry not everyone is such a super genious as yourself with these mopeds.
keep the dumb stuff to yourself.
- fastplastic
- CB900F
- Posts: 1161
- Joined: Tue May 11, 2010 7:37 pm
- Location: Manistee, MI
Re: Fixing to put in the big bore kit..
O and by the way nice thread jackin!HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
I have a spare SYM dd50 stock manifold and carbeurator. does anyone know if the SYM dd50 stock carb can be used with the spree?? what about a SYM stock exhaust with the spree.
only reason i ask is the bike needs new carb, bore, and pipe and I already have the DD50 carb and pipe just curious if that would bolr up or not.
any advise would be greatly appreciated.
- Trafficjamz
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Re: Fixing to put in the big bore kit..
cubdriver wrote:
Any step by step do's and don't for replacing the cylinder?
Thanks!
sj
That base gasket covers some of the boost port.(rear intake port)
Trim it to match.
Make sure the "EX" on the piston faces the exhaust port.
Try not to over bend the G clip wrist pin connectors. (don't want them popping out)
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
- Trafficjamz
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Re: Fixing to put in the big bore kit..
The carb might bolt up....but the spee shock might not clear the dd50 carb.HI808SYM wrote:I am also planning to revive my non running spree with the polini BBK.
I have a spare SYM dd50 stock manifold and carbeurator. does anyone know if the SYM dd50 stock carb can be used with the spree?? what about a SYM stock exhaust with the spree.
only reason i ask is the bike needs new carb, bore, and pipe and I already have the DD50 carb and pipe just curious if that would bolr up or not.
any advise would be greatly appreciated.
The dd50 intake will not work with the spree.
The SYM pipe will not bolt up either.
Polini does not make a kit for a spree engine.
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
Re: Fixing to put in the big bore kit..
thankscubdriver wrote:Thanks!, the kit came will all the goodies - new jet, etc.
I've changed a lot of pistons and cylinders, but never in a spree.
sj
Last edited by HI808SYM on Thu Oct 13, 2011 6:01 pm, edited 1 time in total.
- Trafficjamz
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Re: Fixing to put in the big bore kit..
http://cgi.ebay.com/ebaymotors/Honda-Sp ... _500wt_956HI808SYM wrote: do you have a website for the bore kit?
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight