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new to forum, new to dirtbikes
- bought my first bike
started by kawasaki_kid
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January 2nd 2010 at 2:52 PM
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kawasaki_kid
Starting Member
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4 Posts
Group: Members
Member Since: January 2nd 2010
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I just bought my first "real" bike, 03 Suzuki RM80. Its small i know, but the price was sweet. needs a motor rebuild and bars and it should be mint. currently has a FMF Goldseries pipe, which is what i believe caused the rings to blow. Previous to this i rode a 78 Suzuki A100 which isnt even a actual dirtbike.
the story goes the guy before me melted a hole in the piston with the stock pipe, got the motor rebuilt, didnt break it in at all, put the FMF on to the fresh motor, didnt rejet, and just started riding. its no wonder the motor is toast again. My plan is to rebuild the motor, reinstall the stock pipe, break it in, then put the FMF on and rejet.
The bike also needs a set of handle bars, but all the controls are there.
Like i said i know the 80 is undersized, but i juts want the bike to play around on. something to do in the summer when i cant ride my snowmobile.
im pretty much new to dirt biking, have a to learn.
heres a pic of the bike off my cell.
 03 rm 80
i ride my snowmobile because my snowmobile doesn't work so well on grass and mud.
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January 2nd 2010 at 5:05 PM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts 
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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Cool, welcome to the forum. Got a question tho. Why is your name Kawasaki_Kid and you've had Suzuki's? Just wonderin.
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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January 2nd 2010 at 6:08 PM
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Dekk
Above Average Member
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657 Posts
Group: Members
Member Since: June 18th 2008
Location: Hawarden, Iowa, USA
Current Dirtbike: Kawasaki KX250F
Race Number: 25
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Quite the bike you got there. I had a RM80 a few years back, it was a pretty nice bike.
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January 2nd 2010 at 6:28 PM
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MX86
What's this button do?
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753 Posts 
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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Just go to FMF's website and pull the jetting specs for that pipe and bike. then go one jet up for break-in
Living Life 1 berm at a time.
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January 2nd 2010 at 8:58 PM
[ Modified January 2nd 2010 at 9:01 PM
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kawasaki_kid
Starting Member
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4 Posts
Group: Members
Member Since: January 2nd 2010
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my name is Kawasaki_kid because thats the name i use for all forums regardless of subject. makes it much easier to remember. I chose to use that name for all forums because the first forum i joined was a snowmobile forum when i had my first snowmobile, a Kawasaki Intruder.
will i have to jet up to break in with the stock pipe as well? do i have to premix?
how tight should my chain be? my sprockets look okay.
i ride my snowmobile because my snowmobile doesn't work so well on grass and mud.
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January 2nd 2010 at 9:10 PM
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MX86
What's this button do?
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753 Posts
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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Quote originally posted by kawasaki_kid
my name is Kawasaki_kid because thats the name i use for all forums regardless of subject. makes it much easier to remember. I chose to use that name for all forums because the first forum i joined was a snowmobile forum when i had my first snowmobile, a Kawasaki Intruder.
will i have to jet up to break in with the stock pipe as well? do i have to premix?
how tight should my chain be? my sprockets look okay.
All race bikes are pre-mix. i'd recommend jetting up for any break in, just added assurance IMO.
as for the sprocket, 3 fingers worth of play is generally the rule of thumb (if you can slide 3 fingers between the swingarm and the chain)
Living Life 1 berm at a time.
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January 2nd 2010 at 10:33 PM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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like mx said. yes premix. I believe we mix ours 40:1. and for the chain I go to the back of the chain guard on top of the swing arm and do 3 fingers or a little less. What I have noticed on alot of our bikes mainly the 85 and 125 the 250Fs are a little different but if at the end of the rubber chain gaurd on top of the swing arm if the chain starts going back up there thats about right. That may not apply to all bikes though. Still double check with the fingers tho. Looks like a decent bike. What are you plannin on puttin on it for bars?
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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January 2nd 2010 at 11:08 PM
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kawasaki_kid
Starting Member
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4 Posts
Group: Members
Member Since: January 2nd 2010
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so if you were going to say ___ inches of play in the chain, youd say?
For bars im not sure about brand or anything yet, nothing too high end, something with some rise, probably standard 7/8 diameter. what are some pros/cons of differant bars?
i ride my snowmobile because my snowmobile doesn't work so well on grass and mud.
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January 3rd 2010 at 8:43 AM
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MX86
What's this button do?
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753 Posts
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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1.5-2"
for a 85 i would run no less then 32:1. bike has to be ridden in the high RPM and the extra oil will help seizing.
Living Life 1 berm at a time.
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January 4th 2010 at 2:16 PM
[ Modified January 4th 2010 at 2:17 PM
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DarksideCR
My givadamn broke and I aint fucking fixing it!
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341 Posts 
Group: Members
Member Since: July 4th 2008
Location: Kirkland lake, ONTARIO, Canada
Current Dirtbike: 2000 CR250R
Sponsors: Vortex
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I think every repair manuel says 32:1 so yeah stick to that. If you find ur smoking lots and getting lots of black dripping around ur exhaust ares go to 40:1. If you dont have a repair manuel that should be your first purches and read on the maintenance section really good!
and if you have any other questions dont be shy to ask, i think everyone around here understands the basics and are glad to help.
The honda revolution continues!
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January 4th 2010 at 4:04 PM
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Dekk
Above Average Member
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657 Posts
Group: Members
Member Since: June 18th 2008
Location: Hawarden, Iowa, USA
Current Dirtbike: Kawasaki KX250F
Race Number: 25
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Actually you will get less smoke and less oil dripping if you mix 40:1 because you are putting less oil into the fuel.
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January 4th 2010 at 4:10 PM
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MX86
What's this button do?
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753 Posts
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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Quote originally posted by Suzi_Rider
Actually you will get less smoke and less oil dripping if you mix 40:1 because you are putting less oil into the fuel.
Not exactly true.
Fuel is used to cool the engine as well as burn for power. More oil in the gas (without jetting change) ultimately leads to leaner and hotter burning engine due to decreased fuel to same constant of air, in order to effect the "Spooge" you would need to adjust the size of your jets as well as needle and needle clip position. the oil in the fuel acts as lubricant more so then a power source since it burns more slowly, so yes more oil tends to lead to more oil drip, but not the exact cure to just reduce oil in the pre-mix. 32:1 and 40:1 seem to be the happy medium for a lot of bikes between power and lubricant needs.
Living Life 1 berm at a time.
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January 6th 2010 at 3:51 PM
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Rhythm
Rhythm master
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136 Posts
Group: Members
Member Since: July 5th 2008
Location: Porcupine Plain/Saskatoon, Saskatchewan, Canada
Current Dirtbike: '03 YZ 250
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Quote originally posted by MX86
1.5-2"
for a 85 i would run no less then 32:1. bike has to be ridden in the high RPM and the extra oil will help seizing.
Really depends on your fingers, mine are very wide so I usually end up with 2.5" with three fingers.
Quote originally posted by MX86
Quote originally posted by Suzi_Rider
Actually you will get less smoke and less oil dripping if you mix 40:1 because you are putting less oil into the fuel.
Not exactly true.
Fuel is used to cool the engine as well as burn for power. More oil in the gas (without jetting change) ultimately leads to leaner and hotter burning engine due to decreased fuel to same constant of air, in order to effect the "Spooge" you would need to adjust the size of your jets as well as needle and needle clip position. the oil in the fuel acts as lubricant more so then a power source since it burns more slowly, so yes more oil tends to lead to more oil drip, but not the exact cure to just reduce oil in the pre-mix. 32:1 and 40:1 seem to be the happy medium for a lot of bikes between power and lubricant needs.
I agree.
'03 YZ 250
Tag bar clamps, titanium 200 foot pegs, Rental American Addition bars, RG3 suspenion, Hotwheels graphics, Griper seat cover, and Carlsbad tires.
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January 24th 2010 at 9:53 PM
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2_Stroke_Fury
Starting Member
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5 Posts
Group: Members
Member Since: July 24th 2008
Location: Sudbury, Ont, Canada
Current Dirtbike: 05 RM 250, 08 RMZ 450
Race Number: 606
Sponsors: ME...
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Welcome and congrats on the bike. Ive riden a RM 80 and they are rather fast and snarly so if your not used to it you could end up on your @$$..haha Usually for break in, no more then half throttle and lower gears to keep your RPMs up but not to over do it. (its what ive been told in the past) I run 32 in my bikes, i find they smoke a little more when they are cold but once warmed up they dont smoke as much and if you keep your RPMs up it shouldnt drool much.
Hope it all works out for ya... "Just twist it"
Ride it today, fix it tomorrow
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January 24th 2010 at 10:06 PM
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MX86
What's this button do?
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753 Posts
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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For break in, run little bigger jets, warm it up, and ride it like you would ride it any day, no holding it for miles, but ride it pretty aggressive to seat the rings properly or you will have issues with the motor
Living Life 1 berm at a time.
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