YAMMIEGOD3:16
Active member
NO, NOT SURE lol. 110 (ice) IN A 1000 F.T. ON A GUN ON MY 02 SRX. STILL NoT SURE. YAMAHA DOSE NOT MAKE A WEIGHT THAT WILL RUN MORE SPEED ( from what i have seen). 3;16 (YAMMIE TONY)modsrx said:
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vmax4-800
- Thread starter modsrx
- Start date
modsrx said:
You may want to richen up the needles on this sled as well....just to be safe, until you sort out the jetting.
Also because of the age of this sled, clean the carbs and check/clean the top hat filters under the inlet needle seat, and check the float levels as well.
Some of the early VMAX4s had low float levels and Dyno Tech had one that had a blocked carb vent that caused it to run lean.
YAMMIEGOD3:16
Active member
VENT TUBE THING IS FUNNY, AFFECT OF THAT ON THE VMAX 4 IS DURING LONG WIDE OPEN PULLS. JIM FROM C& H FOUND THAT THE VMAX 4 WAS BUILDING PRESSURE UNDER THE HOOD WHEN VENT TUBES WERE UNDERNEATH MOTOR CAUSING CARBS TO ACTUALLY ACT RICH. EASY FIX WAS TO REROUTE THEM TO AIRBOX. GREAT FIND AT THAT TIME AND HELPED ALOT OF GUYS JET THESE SLEDS CORRECT. 3:16 (yammie tony)
Mod...another thing to note:
-the 1994 Vmax 750 had different needle part numbers then the 1995+ VMAX 800 did
I don't know what the difference is between the needles but you may want to make sure the 800 needles are in those carbs
The needle jets should be the same between the 750s and 800s...my 800 has Q4s in it.
-the 1994 Vmax 750 had different needle part numbers then the 1995+ VMAX 800 did
I don't know what the difference is between the needles but you may want to make sure the 800 needles are in those carbs
The needle jets should be the same between the 750s and 800s...my 800 has Q4s in it.
modsrx said:thnx bob will get a look at it ...good to know didnt think about it ....what will be stamp on the needle ???Q4
Q4 will be stamped on the needle jet...I don't have the numbers written down that are stamped on the needles.
blue800
New member
when i picked up my aaen quads for my '95 i went to aaens shop to talk to him then i seen him at a local grass race what he told me to use was his (special spring)which is 3 pound lighter in total force than yamaha g-g-g stock 8bu-oo 17.2 outer 13.9 inner
39 straight helix silver spring stock rollers
i cant tell you how it works seeing it was 50 here yesterday 40 today w/no
snow at all this year and nothing in the future
39 straight helix silver spring stock rollers
i cant tell you how it works seeing it was 50 here yesterday 40 today w/no
snow at all this year and nothing in the future
modsrx said:thnx bob will get a look at it ...good to know didnt think about it ....
I pulled the jets out of a factory calibrated "stock" spare carb rack for one of my VMAX4 800s...here's the info:
Main jet:.......143.8
Pilot jet:.......47.5
Pilot air jet:..1.0
Needle jet:...499 series Q4
Needle:........6GN20
Hope this helps:
Bob
YAMMIEGOD3:16
Active member
sideshowBob said:
exact. 3:16 (yammie tony)YAMMIEGOD3:16
Active member
YOUR LEAVEING SO MUCH CLUTCH PERFORMANCE ON THE TABLE WITH THIS SET-UP ITS FUNNY. ONLY THING HERE I WOULD USE IS THOSE WEIGHTS. 3:16 (yammie tony)blue800 said:
YAMMIEGOD3:16 said:
well, I know you love them but thats not exactly true, the current world record srx runs a differnt weight other then the 8bu-10, and its a stock oem yamaha weight. 114.8mph in 1000ft. Dont be suprised if you see around 115.5-116mph this year!(if it ever gets cold enough for ice and snow,
)
modsrx said:
mod, look into the needles................................
YAMMIEGOD3:16
Active member
HARD TO BELIEVE, AND NOT ARGUING thats flying. MY 2002 SRX 100% STOCK EXCEPT CHISELS AND A 138 POUND DRIVER RUN 110 ON STALKER. HEADS HAVE NEVER BEEN OFF THIS SLED. STOCK GEARING, .092 TRACK, STOCK HEIGHT, etc. ALOT OF GUYS AND SOME YOU KNOW HAVE GONE REAL FAST WITH 8BU-10. 3:16 (yammie tony)
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YAMMIEGOD3:16
Active member
DEPENDS ON DISTANCE, BUT 21/ 39 FOR GRASS DRAGS. 3:16 (yammie tony)modsrx said: