MRP Power Pack

Black Thunder · Post by **Black Thunder** » Wed Nov 14, 2007 8:17 pm

Does anyone have experience with this kit. "HuskieMobileMan" has used it on his ZX50 and he said he was happy with it. Any opinions?

Martin Racing Performance(MRP) - Performance For KYMCO scooter ZX 50 / SYM 50 / HONDA DIO 50 Based ENG Stage 2 PACK #24293

MRP Power Pack - link to page

Price: $379.05 "Sounds really good for what's in it"

KIT INCLUDES Cylinder and Piston kit, Expansion Exhaust Pipe w/ silencer, OKO26mm Carb,
high speed variator, Mnifold assembly(intake and reeds), torq drive spring, clutch set

Isn't a 26mm carb large for a 70cc bike?

I'm looking to make my recently acquired 2000 SA50P a really strong around towner. I would like to build it for torque more then top end.

I have already derestricted it but but only get about 35mph out of it.

Is this kit a good way to go?

Thanks

Dac · Post by **Dac** » Wed Nov 14, 2007 8:20 pm

to fix that image take off '&height=200' so it ends with '.jpg'

Polini Contesta 72cc is a good kit but the corsa is way better. the contesta is less money but less performance.

Black Thunder · Post by **Black Thunder** » Thu Nov 15, 2007 11:44 pm

Is this post in the wrong section of the forum? Is that why no one is replying?

Dac · Post by **Dac** » Fri Nov 16, 2007 12:01 am

no its in the right section but i dont think there is allot of people who know anything about this kit.

stillspeeding · Post by **stillspeeding** » Fri Nov 16, 2007 5:22 am

That kit is good but it lacks the most important part the "gear ratio" needs to be changed without it the kit is useless, i use a 28mm oko carb on my 94 elite-s, you can save alot of money if you buy only certain parts.

Dac · Post by **Dac** » Fri Nov 16, 2007 10:29 am

i was just thinking that yesterday. even with the weakest bore kit you HAVE to have a gear change.

HuskieMobileMan · Post by **HuskieMobileMan** » Mon Nov 26, 2007 9:27 am

stillspeeding wrote:That kit is good but it lacks the most important part the "gear ratio" needs to be changed without it the kit is useless, i use a 28mm oko carb on my 94 elite-s, you can save alot of money if you buy only certain parts.

The kit worked well with my ZX50. Stock it ran about 43mph and with the kit I am going around 60mph. I think that is a pretty good gain without changing the gear ratio which would run another $150 or so.

Dac · Post by **Dac** » Mon Nov 26, 2007 11:48 am

150 or so?!?!?!
what gears are you buying gold plated? Gears are like 45$ at VTCycles. and gears are the most portend thing you can get. no matter what your top speed is thats if your running WOT just to hit that. with a gear change you can hit that speed at lower rpm's. there for cruising at that speed would be allot easier on your motor.

stillspeeding · Post by **stillspeeding** » Thu Dec 06, 2007 12:40 am

The zx-50 should be a 3 speed 4 stroke and completly different from a 2 stroke engine=live & learn

DrZ34 · Post by **DrZ34** » Mon Dec 24, 2007 6:22 pm

stillspeeding wrote:The zx-50 should be a 3 speed 4 stroke and completly different from a 2 stroke engine=live & learn

*?

yeah you like stroking it twice as much as the rest of us