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gammie61
Blaster class
Joined: 13 Aug 2007
Posts: 151
Location: Cairns QLD
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 Posted: Wed Dec 05, 2007 8:27 pm Post subject: BANSHEE REBUILD HELP NEEDED |
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Ok, it's our first go at rebuiilding the old clunker.
We've pulled her down & she's got stuffed top & bottom bearings on the left side.
Seems that somehow water has come in from the stator where it had pooled & not the fault of my teenager. Still wouldn't recomend owning a 16 year old still. But I am warming to the simplicity of 2 strokes after pulling this one apart though.
So what do you 2-strokers recomend?
Do we get the old crank rebuilt, or buy a genuine, or buy aftermarket?
Yamaha will sell me a complete crank ready to bolt in for about $1000. Not sure if I am capable of rebuilding it or what it would cost to get done.
She has had a rebore before we got her. Local engine rebuilder said to bore her to 65mm.
What sort of piston kits do you recomend?
Wiseco & Pro-x don't seem that far apart in price on the domestic market from what I've seen.
What other options are there & what would you guys expect to pay?
Might be looking at a new stator as well.
What is the go there?
Where is the best place to get all these parts?
If anyone out there is a suplier don't hesitate to PM me with some recomendations & prices.
Don't be shy
I have a lot to learn here.
Thanks
Peter
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06 LTZ400
2000 BANSHEE
Lousy rider.
Eats lots mud now it's wet. |
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fredom
90cc 2 stroke / 110 4 stroke
Joined: 25 Mar 2007
Posts: 66
Location: mildura
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| Posted: Wed Dec 05, 2007 8:44 pm Post subject: |
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| ring john at jmc i got a hotrod crank longrod and pistons to suit, for what i thought was a very resonable price after lookin around for bout a month |
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looking
Big Bore, Stroked & Bling +
Joined: 11 Jul 2007
Posts: 335
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| Posted: Wed Dec 05, 2007 9:36 pm Post subject: |
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john at jmc is the man
DONT USE YAMAHA PARTS |
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bansheebuzz
4fiddy Racer
Joined: 07 Aug 2007
Posts: 255
Location: Gold Coast
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| Posted: Wed Dec 05, 2007 10:09 pm Post subject: |
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your best of replacing the whole crank with a hot rods item, If your going for a staight forward rebuild stick with the standard stroke, standard rod crank.
Get your local engine shop to measure the bore of the cylinders and get them to supply the next size pistons and bore the cylinders to suit
As for your stator, the oly reason to upgrade it is to run higher wattage light or more electrical accessories, do you plan to do this? |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Thu Dec 06, 2007 1:01 pm Post subject: |
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get a haynes manual and youll be right to bolt that sucker back together yourself no worries!
most crank rebuilders will only charge around $200 labour to rebuild your crank if you supply parts, so depending on what it needs it may be cheaper to do this than to buy a whole wiseco crank or similar.
for example you may find that the rods are still serviceable and it only needs big end bearings and mains.... if you shopped around you would be able to rebuild the crank for cheaper than a new wiseco one. also all the crank guys ive spoken to have said that a genuine yamaha crank rebuilt and trued will be a better item than an aftermarket one.
get wiseco pistons for it and make sure the machine shop knows to give them more bore clearance than cast pistons such as stock or pro-x.
if you want the name and number of a good crank guy pm me.
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2002 SE Banshee |
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doorslammer
Roostin Away
Joined: 24 Jul 2007
Posts: 902
Location: Northern WA
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OZ_450
The Day Starts With OZATV !
Joined: 12 Feb 2006
Posts: 1631
Location: those who need to know knows :)
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| Posted: Thu Dec 06, 2007 5:28 pm Post subject: |
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| 4stroker wrote: | get a haynes manual and youll be right to bolt that sucker back together yourself no worries!
most crank rebuilders will only charge around $200 labour to rebuild your crank if you supply parts, so depending on what it needs it may be cheaper to do this than to buy a whole wiseco crank or similar.
for example you may find that the rods are still serviceable and it only needs big end bearings and mains.... if you shopped around you would be able to rebuild the crank for cheaper than a new wiseco one. also all the crank guys ive spoken to have said that a genuine yamaha crank rebuilt and trued will be a better item than an aftermarket one.
get wiseco pistons for it and make sure the machine shop knows to give them more bore clearance than cast pistons such as stock or pro-x.
if you want the name and number of a good crank guy pm me. |
not having a shot at you but why stick to yamaha crank ? a hotrod is rebuilable 100% where as the yam crank is a pain in the ass to work with
i say go the xtra few bucks and get a hotrod crank kit
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black covered in 5.7 powered oversize quad
model vx ss 350 hahaha
enough bass to compensate for lack of skills
Empty Wallet Racing proudly on track for GM Motorsport  |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Fri Dec 07, 2007 8:23 am Post subject: |
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well im no crank expert but just goin off what 3 different crank rebuilders have told me.
something about the yamaha cranks being properly hardened or something or rather...
also one says the pin being forged to the centre assembly is actually a blessing in disguise compared to the fully removable pin in the wisecos.
the only time a yamaha crank isnt fully rebuildable is when the pin is worn excessively, and one of the guys i spoke to says he has rebuilt one crank in particular for a RZ350 road racer upwards of 10 times without needing to replace the pin.
keep in mind though that im talking about genuine cranks which have rebuilt and trued, straight from the factory they need to be trued and nearly all of them are found to be between 3-4 degrees out of phase.
the same probably goes for the wisecos too its just that no-one has bothered to check!
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2002 SE Banshee |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Fri Dec 07, 2007 8:26 am Post subject: |
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ive got a haynes manual for the RZ and its pretty good, never eyeballed a clymers though i have heard they are better.
about the only thing i didnt like in the haynes RZ manual was the PV adjustment explanation, but gammie61 doesnt have to worry about that!
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2002 SE Banshee |
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doorslammer
Roostin Away
Joined: 24 Jul 2007
Posts: 902
Location: Northern WA
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| Posted: Fri Dec 07, 2007 10:51 am Post subject: |
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| 4stroker wrote: |
ive got a haynes manual for the RZ and its pretty good, never eyeballed a clymers though i have heard they are better.
about the only thing i didnt like in the haynes RZ manual was the PV adjustment explanation, but gammie61 doesnt have to worry about that! |
fair enough,
i suppose its better to give the info you got than take a stab at what you dont know
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01 Banshee
Never take life seriously. Nobody gets out alive anyway |
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OZ_450
The Day Starts With OZATV !
Joined: 12 Feb 2006
Posts: 1631
Location: those who need to know knows :)
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| Posted: Fri Dec 07, 2007 6:32 pm Post subject: |
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the centre web which the pins are in on a crank if one side is toasted you have to replace the entire centre web
yes your rebuilder is prob right with the original being stronger but keep in mind all single cyls have removable pins and they havent changed back to the forged type so mustnt be all that bad
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black covered in 5.7 powered oversize quad
model vx ss 350 hahaha
enough bass to compensate for lack of skills
Empty Wallet Racing proudly on track for GM Motorsport |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Sun Dec 09, 2007 3:04 pm Post subject: |
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yep
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2002 SE Banshee |
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gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
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| Posted: Sun Dec 09, 2007 5:44 pm Post subject: |
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we got a haynes manual and with that manual so far we have completely pulled the whole quad apart, then put it back together. its got my thumbs up
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04 yfz450 |
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gammie61
Blaster class
Joined: 13 Aug 2007
Posts: 151
Location: Cairns QLD
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| Posted: Sat Dec 15, 2007 3:25 pm Post subject: |
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Thanks for your comments guys.
It's been a big help.
I knew nothing about these things before this. I still don't know much, but my knowledge has definately an improved.
Thanks again
Peter
_________________
06 LTZ400
2000 BANSHEE
Lousy rider.
Eats lots mud now it's wet. |
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