AuthorTopic: 2stroke scramblers  (Read 2033 times)

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Offline stretchy

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2stroke scramblers
« on: January 18, 2010, 01:26:41 »

alright guys been thinking of geting a bike for the sumer Im not sure what yet mabey an old beat out yz or maybe if i have the cash a old honder cr

my question is what is the necesary maintanance of a 2 stroke. do you have to rebuild them all the time or is this only for race performance?  ive only ever had 4stroke bikes

stretchy
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Offline dxmedia

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Re: 2stroke scramblers
« Reply #1 on: January 18, 2010, 07:35:20 »
Shoudn't ever need to rebuild them really.  As long as the fueling is not messed with or increased along side any de-restriction (not running lean) there shouldn't be any piston problems, and apart from that, there's nothing else in a stroker.

Great little bikes, my old 125 KMX was more than capable of 85.
1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
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Offline Lumbering Jack

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Re: 2stroke scramblers
« Reply #2 on: January 18, 2010, 22:19:50 »
Crossers do tend to be a little more "needy" than a traily would be but a lot depends on how you ride it - use decent 2 stroke oil, don't thrash nuts off it and it should be fairly reliable.  Generally a bigger CC will have been thrashed less.

I had a KMX 125 too when I was 17 - we took the airbox lid off and the neck out of the front pipe and it went awesome - better than my CR at the time (and then went bang) - as DX said - if derestricting then watch out for running lean and melting the piston  :shock:
R reg 3.9 Discovery on LPG - pretty standard at mo.

Offline thediscodude

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Re: 2stroke scramblers
« Reply #3 on: January 18, 2010, 23:47:50 »
also a vote for a kmx as me and i m8 had one offroad and it wasnt far off toucing 90mph, then i got an 1989 rm 250 and that nearly pulled the skin off ya face lol, if i was to have another 1 it'd definatly be the old rm :D
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Offline dxmedia

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Re: 2stroke scramblers
« Reply #4 on: January 18, 2010, 23:56:50 »
KMX 125 and the RM 125, pretty much the most stolen bikes of all time  :lol:

One wire and your away...

That's something to bare in mind though. Scally [!Expletive Deleted!] will just pick em up and throw them in to the back of a van, so disk locks aren't worth it. Chain em down every time.
1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo

Offline stretchy

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Re: 2stroke scramblers
« Reply #5 on: January 19, 2010, 07:45:37 »

thanks guys
I know more than well that if they want something it will go but it will be in a shed, its just for a weekend thing thats why i dont plan to spend a great deal on it.
I only asked becase evrytime I see an add for a half decent little 2 smoker it always says its just been rebuilt so I was wondering if it would be just as well to get a 4 stroke

stretchy
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Offline dxmedia

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Re: 2stroke scramblers
« Reply #6 on: January 19, 2010, 08:49:53 »
What is a rebuild in a stroker?  Other than a big end bearing take the head off and replace the piston / rings / gudgeon pin / small end (which all comes in a £30 piston kit) there is nothing else.

If an engine has just been rebuilt (see above ;) ) I'd guess that it's been de-restricted and has the incorrect jet fitted. a couple of seconds of WOT and the piston will melt.  To fit a new piston in a KMX esc crosser there access is OK, it's about 30 minutes.


Just dont ask me how I know  :roll:
1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
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Offline TDi90

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Re: 2stroke scramblers
« Reply #7 on: January 19, 2010, 10:38:07 »

alright guys been thinking of geting a bike for the sumer Im not sure what yet mabey an old beat out yz or maybe if i have the cash a old honder cr

my question is what is the necesary maintanance of a 2 stroke. do you have to rebuild them all the time or is this only for race performance?  ive only ever had 4stroke bikes

stretchy

you need to learn to to spell.  :roll:
TDi90
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Offline dxmedia

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Re: 2stroke scramblers
« Reply #8 on: January 19, 2010, 10:48:42 »

alright guys been thinking of geting a bike for the sumer Im not sure what yet mabey an old beat out yz or maybe if i have the cash a old honder cr

my question is what is the necesary maintanance of a 2 stroke. do you have to rebuild them all the time or is this only for race performance?  ive only ever had 4stroke bikes

stretchy

you need to learn to to spell.  :roll:

You need to learn the correct use of capital letters :P

Come on, this is a 4x4 forum not a spelling bee.
1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo

Offline mass199

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Re: 2stroke scramblers
« Reply #9 on: January 19, 2010, 20:28:29 »
I'd say it would depend on what you are using the bike for. If your a top class rider who is a the sharp end of expert racing then yes you will need a fair amount of maintanance, top end rebuild every 10 hours at a cost of at least £75.

If you just want to goon around a field for a couple of hours every weekend then it should be ok, just don't forget to use a reasonable 2 stroke oil and clean the air filter every time you go out.
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Offline Saffy

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Re: 2stroke scramblers
« Reply #10 on: January 19, 2010, 20:48:19 »
I want a greenlaning motorbike but I am 6foot4, fat and do not have a bike license nor how to ride one... on a loser ain't I?
.swonk eno oN .esoht dna eseht ,siht dna taht ,wollof ot selur emos teg eW

Offline stretchy

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Re: 2stroke scramblers
« Reply #11 on: January 20, 2010, 03:20:05 »

alright guys been thinking of geting a bike for the sumer Im not sure what yet mabey an old beat out yz or maybe if i have the cash a old honder cr

my question is what is the necesary maintanance of a 2 stroke. do you have to rebuild them all the time or is this only for race performance?  ive only ever had 4stroke bikes

stretchy

you need to learn to to spell.  :roll:

You need to learn to keep your mouth shut!
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I break land rovers!
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Offline propes

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Re: 2stroke scramblers
« Reply #12 on: January 20, 2010, 17:55:03 »
Now now girls play nice
Polish the towel of life to reflect the acidic doorstop! Big brother is watching he drives a freelander.....You have been warned!!!!!

Offline squaddie_fox

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Re: 2stroke scramblers
« Reply #13 on: January 20, 2010, 18:37:43 »
At least he didn't try to flog you an Audi Allroad.  :dance:

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Offline dxmedia

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Re: 2stroke scramblers
« Reply #14 on: January 20, 2010, 19:24:36 »
At least he didn't try to flog you an Audi Allroad.  :dance:


Just tried re-arranging the letters in the post, and it's not even hidden in there ;)
1959 Unimog 404 DoKa i6
1996 Jeep ZG i6with 6" suspension lift
1999 2.5 v6 Omega autobahn stormer
2001 1.4 Polo

 






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