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Old 04-01-2005   #7 (permalink)
karter257
Senior Member
250 Grand Prix
 
Join Date: Feb 2005
Location: oxfordshire, UK
Posts: 149
Bike-2004 thrux
Alt-150-200feet
Main jets- 128
Pilot jets- standard
Turns on Pilot- 3.25
Needle - 1.5mm rise
Slide- standard

Mods - K&N's, AI removed

Much more punch now but not front wheel lifting as reported elsewhere but still running standard pipes.

120 mains was too weak - caused hestiation at high throttle & rpm.

132 and 136 did not seem to offer anything over 128 mains.

Rising the needle improved throttle response I felt.

All tests done by 'riding around the block' today in the sunshine :-)

Different pipes and dyno setup to come one day:


Bike-2004 thrux
Alt-150-200feet
Main jets- 134
Pilot jets- standard
Turns on Pilot- 3.25
Needle - 1 shim
Slide- standard

Mods - K&N's, AI removed, Mototwins fitted.

BHP: 73.5bph Crankshaft DIN at 7215rpm

134 main jet as was weak at top end on the dyno now pulls very strong to the red line where as struggled to get beyond 6500 before. See Dyno plot

Needs gearing up according to dyno man. (19T sitting in garage waiting to be fitted :-) )

Going to try 42 pilot out of interest - not really sure I could tell the difference







[ This message was edited by: karter257 on 2005-06-03 01:43 ]
karter257 is offline   Reply With Quote
 

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