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Bakerraptor700
Blaster class
Joined: 01 Apr 2008
Posts: 109
Location: Newcastle
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 Posted: Thu Jun 18, 2009 7:30 pm Post subject: best engine for a 70 trike?? |
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| starting a new 70 soon but this time i want one that i not to scared to get a scratch on. i seen the 70s on the flat track just wondering what engine they running?? and where i can get 1. |
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Sponsor
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stu Fifty Arrrrrrrrr
Big Bore, Stroked & Bling +
Joined: 22 Sep 2007
Posts: 393
Location: Newcastle NSW
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| Posted: Thu Jun 18, 2009 7:47 pm Post subject: |
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125,140, thumpster engine direct bolt in no cutting.  Im pretty sure the 160 are the same too.
_________________
86 atc 250r.
86 trx 250r (project).
78 atc 70.
laydown 200 atc 70.
71 parrot green 90 ballooooony.
81 atc 185s. |
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Bakerraptor700
Blaster class
Joined: 01 Apr 2008
Posts: 109
Location: Newcastle
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| Posted: Thu Jun 18, 2009 8:03 pm Post subject: |
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| sweet seeing this flat track racing got my thinking |
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Aussieduner
Moderator
Joined: 05 Sep 2006
Posts: 1458
Location: New South Wales
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| Posted: Thu Jun 18, 2009 8:05 pm Post subject: Re: best engine for a 70 trike?? |
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| Bakerraptor700 wrote: | | starting a new 70 soon but this time i want one that i not to scared to get a scratch on. i seen the 70s on the flat track just wondering what engine they running?? and where i can get 1. |
I have a 125cc Thumpster in my K1 70, bolts straight in and its had a pull start conversion by Greenhuman, just with that size donk its crazy powerful.This flat track 70 stuff is going to be awesome, the more the merrier !
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1989 TRX 250R |
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HondaGrant
4fiddy Racer
Joined: 18 Feb 2007
Posts: 266
Location: Newcastle NSW
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| Posted: Thu Jun 18, 2009 8:39 pm Post subject: |
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The Chinese motors are probably the way to go these days if you want some cheap horse power just bolt'em in and off you go.
I've got one with a worked 90 motor in it,it's good when it's going but when its not its a pain in the arse..........
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If a Quad is a Quad Bike,
Is a Trike a Trike Bike ????? .... |
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Bakerraptor700
Blaster class
Joined: 01 Apr 2008
Posts: 109
Location: Newcastle
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| Posted: Fri Jun 19, 2009 7:54 am Post subject: |
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| i got a 125 thumpster now an if flys thats the way i def goin with next 1. i still ant started my 92 big bore kit engine yet hopefully its not 2 disapointing cause it cost me enough. |
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ATC250RG
90cc 2 stroke / 110 4 stroke
Joined: 29 Dec 2008
Posts: 75
Location: Newcastle
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| Posted: Fri Jun 19, 2009 6:31 pm Post subject: |
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I have a GPX160cc motor in one of my Honda TRX70's, it fit in with minimal mods and goes very well.
I am going to fit one to a ATC70 as well, bring on the flat track!
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millsi
Blaster class
Joined: 26 Jan 2008
Posts: 124
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| Posted: Fri Jun 19, 2009 8:22 pm Post subject: |
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i think a 125 electric start would be ideal, nice and reliable and cheap, not too mention a fair bit of power. a cam and compression change for a bit more power if needed
_________________
70s FTW!
1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70 |
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greenhuman
Roostin Away
Joined: 12 Feb 2006
Posts: 980
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| Posted: Fri Jun 19, 2009 10:36 pm Post subject: |
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| I have a brand new 125cc electric start engine for $350 if anyone is interested. |
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millsi
Blaster class
Joined: 26 Jan 2008
Posts: 124
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| Posted: Sat Jun 20, 2009 2:04 am Post subject: |
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that sounds like a good deal, what brand and does it come with wiring?
_________________
70s FTW!
1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70 |
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greenhuman
Roostin Away
Joined: 12 Feb 2006
Posts: 980
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| Posted: Sat Jun 20, 2009 11:17 am Post subject: |
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| Its a Jianshe and its got a harness. |
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ashnery
Moderator
Joined: 03 Jul 2006
Posts: 927
Location: www.dn.eng.com.au
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| Posted: Sat Jun 20, 2009 3:32 pm Post subject: |
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If you guys pull out your finger and get somthing going (be r-dh-ad or Kurri Kurri?,Are you going to run classes or will it be the 70 open classic ,no holes bared ?
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OH "profanity removed" I SAID "profanity removed".......OH "profanity removed" I SAID "profanity removed" |
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stu Fifty Arrrrrrrrr
Big Bore, Stroked & Bling +
Joined: 22 Sep 2007
Posts: 393
Location: Newcastle NSW
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| Posted: Sat Jun 20, 2009 3:40 pm Post subject: |
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I recn have classes a stock 70 against a project may be a bit of a disadvantage, I recn it would be more exciting racing too if it was a more level playing field. Keep all the modded ones together, and vice versa.
Either way though I dont mind I recn its gonna be awesome fun.
_________________
86 atc 250r.
86 trx 250r (project).
78 atc 70.
laydown 200 atc 70.
71 parrot green 90 ballooooony.
81 atc 185s. |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Sat Jun 20, 2009 3:46 pm Post subject: |
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| 4 trax 90 fitz right in. $400 complete. eletics etc. |
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Mart 300r
Roostin Away
Joined: 02 Jun 2008
Posts: 944
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| Posted: Sat Jun 20, 2009 4:01 pm Post subject: |
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Yeh would have to have classes.As there are some big bore 70's around.
Back to original question best engine would have to be over 200cc's lol.
Theres no better feelin than tryin to keep the front end down on a big powered 70.
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stu Fifty Arrrrrrrrr
Big Bore, Stroked & Bling +
Joined: 22 Sep 2007
Posts: 393
Location: Newcastle NSW
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| Posted: Sat Jun 20, 2009 4:27 pm Post subject: |
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There is a few around now, got me thinking who has a big cc 70,
Johnny Mc Project
Andy W project
me (Stu) poject
you(mart) INBREAD Project
Anymore?????
Then theres the thumpster/alternate motor 90cc ^ conversions,
Aussie D 125 pullstarter
Bakerraptor 92 kit
Honda grant 90 conversion
Steven W HONDA 138 BIGBORE+ 3 Others
Anymore?????
Then theres stock 70?????
Millsi allsorts of 70's
_________________
86 atc 250r.
86 trx 250r (project).
78 atc 70.
laydown 200 atc 70.
71 parrot green 90 ballooooony.
81 atc 185s.
Last edited by stu Fifty Arrrrrrrrr on Sun Jun 21, 2009 12:03 pm; edited 2 times in total |
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ForeverThreeWheels
The Day Starts With OZATV !
Joined: 18 Nov 2008
Posts: 1742
Location: Maitland
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| Posted: Sat Jun 20, 2009 6:46 pm Post subject: |
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This is shaping up nicely guys. Even though i dont have a "pit trike" (cant really call them a 70 anymore) i'll still be there to watch and film. This stuff will be gold in the DVD! 
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stu Fifty Arrrrrrrrr
Big Bore, Stroked & Bling +
Joined: 22 Sep 2007
Posts: 393
Location: Newcastle NSW
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| Posted: Sun Jun 21, 2009 12:06 am Post subject: |
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mate no one gets left out you can have a go on marts if you want
na seriousley im sure you'll score a run  this is gunna be fun.
_________________
86 atc 250r.
86 trx 250r (project).
78 atc 70.
laydown 200 atc 70.
71 parrot green 90 ballooooony.
81 atc 185s. |
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millsi
Blaster class
Joined: 26 Jan 2008
Posts: 124
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| Posted: Sun Jun 21, 2009 12:29 am Post subject: |
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| greenhuman wrote: | | Its a Jianshe and its got a harness. |
centrifugal or manual clutch and what gear configuration?
sorry for all the ?s
_________________
70s FTW!
1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70 |
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millsi
Blaster class
Joined: 26 Jan 2008
Posts: 124
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| Posted: Sun Jun 21, 2009 12:30 am Post subject: |
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ive got a baby 88 kit but its not a racer. my stocko 85 70 goes ok though.
_________________
70s FTW!
1974 Atc 70 custom
1982 Atc 70 for the mrs
1985 Atc 70 |
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ForeverThreeWheels
The Day Starts With OZATV !
Joined: 18 Nov 2008
Posts: 1742
Location: Maitland
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| Posted: Sun Jun 21, 2009 12:41 am Post subject: |
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| stu j wrote: | mate no one gets left out you can have a go
na seriousley im sure you'll score a run this is gunna be fun. |
Thanx Stu... I cant wait! It matches my helmet too! Its meant to be!!! 
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Vortech
50cc nipper
Joined: 24 Jun 2009
Posts: 12
Location: South Australia
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| Posted: Wed Jun 24, 2009 7:39 pm Post subject: |
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I'm picking up a pair of ATC 70's tomorrow, looking to mount a bigger/faster engine in one of them.
Has anyone considered something like a CR80 engine, obviously would take a bit of messing around to fit, any one considered?
or What is the biggest lifan ( or other such side mount pit bike) engine that you can fit? |
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stu Fifty Arrrrrrrrr
Big Bore, Stroked & Bling +
Joined: 22 Sep 2007
Posts: 393
Location: Newcastle NSW
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| Posted: Thu Jun 25, 2009 4:59 pm Post subject: |
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Hi mate, think the biggest thumpster, pitpro etc is the 160cc and apparently there pretty quick in the bike. As far as anything else you've got greenhumans (JMC) laydown motors as pictured above in my project
thats out to around 230cc, or theres Mart300r whos layed down an aircooled 250r trike motor and shoved it in, im pretty sure you could put anything in one (within reason) if you had the time, dollars and the equipment. I think Greenhuman has a fully suspended project for sale, that is if you want to keep your 70s standard and have a fast 70, anyway goodluck with it whatever you do, post some pics up of your new rides.
Cheers Stu.
_________________
86 atc 250r.
86 trx 250r (project).
78 atc 70.
laydown 200 atc 70.
71 parrot green 90 ballooooony.
81 atc 185s. |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Thu Jun 25, 2009 5:52 pm Post subject: |
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| Yes the yfz 450 motor ,70 trike will be good . |
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greenhuman
Roostin Away
Joined: 12 Feb 2006
Posts: 980
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| Posted: Thu Jun 25, 2009 5:53 pm Post subject: |
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| millsi wrote: | | greenhuman wrote: | | Its a Jianshe and its got a harness. |
centrifugal or manual clutch and what gear configuration?
sorry for all the ?s |
Manual clutch. I think its 1 down 3 up. Its brand new so I haven't used the gears. |
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