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Author Topic: 38 A/S jetting help...  (Read 2396 times)

Offline mgleason05

38 A/S jetting help...
« on: September 04, 2014, 10:13:28 PM »
Got a  38 A/S the other day, but have no idea on where to start with jetting. I have a stock cylinder that I believe has been bored once. FMF pipe and exhaust. Any ideas on what to start with? No porting has been done.
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Offline rk88r

38 A/S jetting help...
« Reply #1 on: September 05, 2014, 06:52:32 PM »
Assuming you're not running an airbox lid. Summer temps (central MN) I would try 48pj, dej 3rd groove, and 165 mj. A little cooler weather 4rth groove, and a 170 mj. Probably rich Idk listen to your motor.
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\'99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
\'88 265 pv peps
One other \'88

Offline The Phantom

38 A/S jetting help...
« Reply #2 on: September 06, 2014, 10:03:07 AM »
I think my 38 A/S with a ported stock cylinder with fmf exhaust had a 170 main and a 50 pilot, needle in the 3rd groove open lid airbox.
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1988 TRX ESR 350 PV +4 STROKER (363)RACE DOME* ESR TRX9 PORT AND TRX5B PIPE & SILENCER*38mm Smartcarb*V-FORCE 3 REEDS*CR500/400EX CLUTCH MOD*ESR BILLET KICKSTARTER,SHIFTER,BRAKE LEVER, TEMP GAUGE*GPI RADIATOR & HOSES*LSR +2 A-ARMS*LSR STEERING STEM & CLAMP*LSR CARRIER & AXCALIBER AXLE*ITP SS112 RIMS WRAPPED WITH RAZR 2\'S*TRIPLE RATE WORKS FRONT SHOCKS W/REZ*AC RACING NERFS*DG FRONT BUMPER*LED TAILLIGHT

Offline jcs003

38 A/S jetting help...
« Reply #3 on: September 06, 2014, 10:39:05 AM »
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