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xs650 > > Parts Needed > > Performance Parts > > xs840/880 |
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papsck New Member
Joined: Sep 30, 2008 Posts: 5
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Posted: September 30, 2008, 3:45 pm Post subject: xs840/880 |
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Hi everyone,have a motocross sidecar outfit with a xs motor in it,at the moment it is a badly done low compression 750 using xv 750 v twin pistons and is to slow.Has anyone got the parts to make a 840/880 they want to sell?Also a single carb manifold?
I am in the south of uk phone 01483850024 home.Paul
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: September 30, 2008, 7:08 pm Post subject: Re: xs840/880 |
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Paul,I wouldnt bother with the 840 (even less the 880)
Ive owned/built several 840's and even though its a great performer the time/effort/cost just isnt worth it these days..For instance the SP370 pistons cost a bomb, special split/offset collets need to be made for head/gasket location,the large liners that intrude through the cam-tunnel & need to be carefully installed & then youll lose the airflow between the cylinders(so an oil cooler needed), head-gaskets are unobtainable since Tony Hall at HALCO topped himself (he ordered them made in decent enough numbers to make it worthwhile to a manufacturer to bother with,copper DOESNT work!)..
Buy Mikes 750 kit from Holland for the 533 crank , performance is just as good at HALF the price & without any of the above issues !
That along with a gas-flowed head & 34mm carbs is just as good..
_________________ 1 running 650
2.5 bikes in bits,
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yamaman Support Staff
Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: October 1, 2008, 5:14 pm Post subject: Re: xs840/880 |
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heres the website
www.users.bigpond.net.au/dave650
_________________ Its not enough to have an aim in life, you have to pull the trigger! |
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 1, 2008, 5:21 pm Post subject: Re: xs840/880 |
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Dave Rayners stuff is /was very expensive(+ shipping from OZ ! ) , not as cheap as the Suzuki SP370 pistons we use in the 840 which are expensive anyhow!
Theres a lot of work involved (840)machining the crankcases out , altering the cam-chain tensioner, making offset head/barrel collets , and youll be lucky to get the 88mm liners for a reasonable price & then they might not 'fit' the first time - spare barrels reccomended...
My first 840 kit cost me £450 TWELVE years ago , more like £600+ nowdays ! Stick to Wiseco or Mikes kit.. Much less hassle in the long run as everything you need is off the shelf and no work involved (apart from fitting the new liners if opting for the Wiseco kit)
_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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yamaman Support Staff
Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: October 1, 2008, 5:31 pm Post subject: Re: xs840/880 |
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$180 ea pistons, $200 liners and $45 head gasket = $605 to suit 533 or 447 motors =270 pounds stirling or $477 US
Sorry +AU$45 base gasket. This plus shipping has got to be a good deal!
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 1, 2008, 5:35 pm Post subject: Re: xs840/880 |
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Whats that for mate - 750?
_________________ 1 running 650
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yamaman Support Staff
Joined: Jan 04, 2007 Posts: 1638 Location: Perth Western Australia
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Posted: October 1, 2008, 6:04 pm Post subject: Re: xs840/880 |
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840cc
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 1, 2008, 6:26 pm Post subject: Re: xs840/880 |
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Actually thats a good price for the parts but he'd have to think about the cost of shipping+ import duty + VAT = £200 (ish) .. installing/boring the liners (approx £100) crankcase mods (approx £100)
_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 2, 2008, 3:43 am Post subject: Re: xs840/880 |
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All I was saying is that having owned 840's , the time & expense involved really isnt worth the few extra CC's over a 750 ....
in my opinion performance-wise my 750's (especially with the 533 crank) are as good & at half the price too !
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_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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papsck New Member
Joined: Sep 30, 2008 Posts: 5
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Posted: October 2, 2008, 5:24 am Post subject: Re: xs840/880 |
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Thanks guys for info,in talks with Daves 840 parts and sounds best option for me,if i go this way and import from aus is any one else interested in the uk.Paul
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 2, 2008, 5:53 am Post subject: Re: xs840/880 |
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Ah !
Sorry Paul , I thought you were converting an old motocross/grasstrack bike back for road use !
In that case , youre into racing then 840 is the better option - loadsa torque...I guess for anyone who can actually afford to race these days the extra ££'s for the 840 wouldnt be an issue then..... .Be sure to purchase 3 or 4 of everything though ...
cheers Skull
_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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papsck New Member
Joined: Sep 30, 2008 Posts: 5
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Posted: October 6, 2008, 10:59 am Post subject: Re: xs840/880 |
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Sent Dave a email last wednesday about 840 kit ,had no reply yet,is this normal?Paul
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: October 6, 2008, 12:13 pm Post subject: Re: xs840/880 |
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Took him a week to get back to me once then had a flurry of correspondence from him, he was always keen to help..
_________________ 1 running 650
2.5 bikes in bits,
no time,
gradually losing intrest... God help me... |
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