Hey guys what's up? Is a flat side carb good to use on a 85 250r? I got it off of ebay ,so I wanted to know if it good to use.my bike is all stock.and another ? How much air do I put in my maxis razrs? They don't have air at all. Thanks on any help.
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Arm chair racerNew to the board
Hey guys what's up? Is a flat side carb good to use on a 85 250r? I got it off of ebay ,so I wanted to know if it good to use.my bike is all stock.and another ? How much air do I put in my maxis razrs? They don't have air at all. Thanks on any help.
Power User
Roostin Away
Can you give us a little more info on the carb?
Power User
Got the holeshot
A flat slide carb is always a good upgrade for the R. But you don't want to go too big on the millimeter. And I like to run 3psi in my tires.
Got The Holeshot
Arm chair racerJust too addicted
like he said ,flatslide is an improvement over the stock. i have one too on my 85r.
what size carb are you looking to get? the bigger you go, the powerband will be moved up too so you shoul really think about it. 36mm is a good overall size for this bike but you can go to 38mm even 39mm but dont suggest it. as far as the razors, you can run them about 10 psi is good. i had them on my 85r, but dont like them for this bike. they are bulkier in size compared to holeshots... just dont look right. but work well.
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Arm chair racerNew to the board
Ok thanks on the help,so 36mm would be good to run?how would I know what size it is?I know nothing about carbs.I put it on and it doesn't run like it sould,and smokes a lot more.help please!thanks!!!!
At The Back Of The Pack
Arm chair racerAt the back of the pack
I would run a 38mm on even a stock bike. Its a huge improvement and ideal for the bike! Id recommend Keihin Air Stryker 38mm PWK!
My Trikes, Bikes & Quads:
85 Honda 250es Big Red
2006 Honda TRX450R
2016 Can-am Maverick 1000R Turbo
Aftermarket Parts: For Sale
85-87 Honda Bigred 250ES HONDALINE Speedometer Kit
SPRAYMATE Sprayer for Bigred or Other 3-wheeler/4-wheeler
Hondaline Brake Resivore Guards
ATC 90/110 Aftermarket Chain Roller
Got The Holeshot
Arm chair racerJust too addicted
what is the model # on the carb you have? what are the jets sizes it has? did it just start happening?, been sitting? where you messin with it? need more info!Originally Posted by mizmissy82
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Arm chair racerNew to the board
The has not been siting I ride every chance I get.I asked the guy I got it from and he don't know any thing about it.all I know I is it is mikuni,don't know what the jets are.
First Time Rider
Arm chair racerNew to the board
You might want to consider checking the jetting on the new carb before you do very much riding with it. If it's not right you can very easily ruin your engine top end (if not more).
Getting the jetting right is an art too, get with someone who's done it before if you don't feel comfortable doing it yourself.
-BFC
'86 250R
At The Back Of The Pack
Arm chair racerAt the back of the pack
anyway you can get a pic of the carb?
i think alot of the guys are thinking that the flat slide carb your talking about is a keihin.
mikuni carbs are in my experience a little touchy (depending on model), but they can be good carbs if set up properly i would need to see a pic of the carb.
and as for size, you would measure the inside of the engine side of the carb. (not the air filter side, the reed side)
you can also go to sudco.com and find out more about your carb.
84 250r gone,
87 suzuki lt250r trail machine, gone to fund ice racer,
85 250r ice racing project started !!!!!!
Just Too Addicted
Arm chair racerJust too addicted
I run a 39mm striker on mine...no problems and it's a rocket compared to the stock carb!!
My Trikes...
-1985 Big Red
-1986 250r
-1984 200x
-1980 110
-1980 ATC 185
New to the board
Arm chair racerNew to the board
Hey guy what's up? Here's some pics of the carb.I took it off and put the stock one back on,so any more help?
Power User
Roostin Away
Honestly, without knowing what size it is no one can give you any sort of accurate info. Just measure the opening of the inlet (2nd picture) in millimeters and that will be half the battle.
I have run a 39mm PWK Keihin on a 250R with just a pipe and cut head on it without any issues. It just needs to be jetted right.
John
1985 Eddie Sanders ATC330r
1986 Monstecate
1984 ATC70 (awaiting 125cc transplant)
1984 ATC125M
1986 GSXR 750 - Keepin' it old school!
1999 Arctic Cat 500 4x4 plow machine
1999 Arctic Cat Thundercat 1000 (lake lizard)
1996 Arctic Cat Jag 440 L/C (ditch banger)
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Arm chair racerNew to the board
its a mikuni TM flatslide used on the lt lineup for suzukis ,34mm for the lt250r and 38mm for the lt500r ,very poorly designed outdated carb ,honestly i would ebay it and get yourself a 38mm pwk airstryker keihin ,as mentioned even on an unporteded 250 it will be a big overall improvment plus you wont be chasing the jetting all over the place like the mikuni
http://flotekperformance.com/home
GOT TORQUE?
New to the board
Arm chair racerNew to the board
Hey thanks on the help.I think I will ebay it and get 38mm pwk airstryker or a 34mm?cus I plan on getting a pipe and reeds for it.
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