High performance pocket bike engines Pocket rocket
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Here is three high performance pocket bike engines. All have quality case bearings and seals.
First is the gold head, stock slide carb, modified reed stopper, stock tin reed, stock half moon crank, blueprinted case, matched mild ported cylinder, slightly higher compression, stock flywheel, and stock 3 shoes aluminum clutch.
Second engine, blue head.
2pc higher compression head. Boost port in the cylinder, exhaust port work, ported base transfer ports, lightened crank with rocket key, 3 shoe aluminum clutch with HP springs, massaged case, tin Reed, modified reed stopper, race coil, and for now crappy race carb, soon a pumper carb.
Third engine, ported base cylinder transfers, ported exhaust port, wide third boost port, higher compression, blueprinted case, modified reed stopper, carbon fiber reed, taper bored round slide carb, upgraded coil, stock flywheel, 3 shoe steel clutch with HP springs.
Most of the power upgrades are in the blue printing/porting and lightening of parts. Also modifying the reed stopper and carb. always run a performance exhaust, which can be seen in another video of mine.
Thanks for watching and please subscribe!!!
Cool, I gotta see these builds in action!
Ha, you are not wrong. I have one frame I will use to run these engines. Just picked up a complete Lucky 7 with an old skool original snake pipe.
@@bdrgarage7039 Nice, you makin a vid anytime soon?
@@jmrides777 it is winter now. I have plans for a few in the spring.
Have you tried putting a 990 walbro carburetor on a engine. It’s mainly for gas rc cars known as 1/5 scale Baja 5b and Losi 5t gas rc car but I’ve tried and it works you just have to find a adapter because they got 2 bolts to hold it in place
I have not personally used the 990, usually a modified 668 clone is my go to. On my gopeds I also use the 668 and 167.
The blue and black engine i can find it on amazon ?
@@RamiroJunTV Short answer, no. This engine was modified a lot. So the ones on ebay or Amazon have less than half the power these have.
Hi, im new to these little engines whats the difference between 1 piece head and 2 pieces? I have a x1 pocket that has 1 but seems like i cans install 2 piece from ebay?
The 2 piece will have higher compression. Your X1 is a piston port and there is no cylinder with the open top for a direct replacement. But it has been done by others. You can chop the top or your cylinder but machining will be needed.
However, you can pull out the base cylinder gasket and use yamabond to seal the surface and gain more compression that way.
@bdrgarage7039 i see what you mean, any cylinder you recommend as a replacement wich has better porting and compression? Also any forks as mine are bent
@@carlosdavidgalarza9338 Unfortunately for the forks, I believe they are not available. They should be able to be straightened or find a used parts bike. As for the cylinder, all the companies they use to make performance ones are long gone. BUT it can be ported by you. The best way is a little, 1mm each side of the exhaust port and arch the top slightly. Widen the base transfer ports and its already better. Make sure to taper the inside edges so the rings don't catch.
How do I get higher compression on a 40cc xpro 4 stroke engine
I don't have experience with that engine but, higher compression can be gained by shaving the head, or a thinner head gasket. I don't know the spec of that engine, you don't want to add so much compression that you have to run super high octane. fuel.
Do you know what calibration those blue-cylinder spark splues have?
Sorry, I am not sure what you're asking.
Space spark flug calibration in the electrode
Usually between 0.025"-0.028" gap on the spark plug
can you do some videos on how to repair the stator, carb, and replacing the engine?
I do have an old carb replacement video but it wasn't the best. Let me see what I can do. By stator are you referring to the flywheel? These engines do not use a a stator.
@@bdrgarage7039 yeah the flywheel, although mine doesnt look like a flywheel
@@wilkknight7756 do you have the same case reed engine or piston port?
@@bdrgarage7039i dont think so. my engine is stock, except with a racing air filter.
its just the carb and stator/flywheel seems to be faulty since it leaks a lot of gas and is extremely hard to start(hard to pull as well). the engine also idles very low and turns off by itself. ive tried tuning it but its either idle at 20kmph or 0kmph
@@wilkknight7756 sounds like a few things wrong. Does the engine in my video look similar to yours?
Have you modded any of the upright 49cc that come with the right-side output, gear reduction transmission?
I've got an extra one with a used 2005 mini chopper, the current motor tops out at 28 & I'm trying to get at least 30..
Its interesting you ask, I will soon. Modifying one to go on a Razor dirtbike for my nephew. I will port the case and cylinder base transfer ports, probably a rocket key, better spark plug wire, lighter flywheel, and wt668 clone carb.
@BDR Garage very cool!
@@bdrgarage7039 just came across this, is it an mx350 you plan to use? Should be very similar to my pocket mod with the piston port on it.
@@jawbraker561 using an MX500 chassis. I will do an mx350 modded electric bike, many stages.
@@bdrgarage7039 ah i see, good chassis for it, i plan to build an electric mx500 or 650
you talk about going back to tin reeds from carbon, why? what do the carbon reeds do and are they worth it, also where can nice ones be found?
Hey, wow sorry for the delay. Carbon fiber and fiberglass are great in stock or lightly modified engines like these. Through testing mid to highly modified they flutter. The tin reeds are stonger and don't flutter.
www.ebay.com/itm/273560790757?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=TKeNxkVSQTq&sssrc=4429486&ssuid=MGlbrHjSTTW&var=&widget_ver=artemis&media=COPY
Fiberglass
And
Carbon fiber
www.ebay.com/itm/152277231333?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=mMpWrVoKQI2&sssrc=4429486&ssuid=MGlbrHjSTTW&var=&widget_ver=artemis&media=COPY
@@bdrgarage7039 Thanks for the response, I’ve actually sold my mta1 since I’ve written the comment, though I do plan to get another one. I’ve heard that the turning point for the carbon reeds is the multi piece head and thats when they flutter? I also want to ask if you have any experience with piston port motors, I’ve recently come into possession of one on a razor pocket mod. Curious if there is an aftermarket or alternative parts for the piston ports engines, thanks again
Any way to make a 40cc 4 stroke faster?
Hey, sorry I didn't see this. Un8the only thing is a bigger carb and better exhaust. And it will be minimal. I think there were a few videos on TH-cam. I haven't found one cheap enough to modify for a video.
Can you please send me a link to a hed with a boost port
Here is a one piece cylinder....
www.amazon.com/TC-Motor-Ported-Performance-Racing-Cylinder/dp/B07PPVYXC9/ref=mp_s_a_1_18?keywords=47cc+cylinder&qid=1691943852&sr=8-18
Here is a 2 piece.....
www.amazon.com/TC-Motor-Cylinder-Piston-Stroke-Minimoto/dp/B01EC795ZM/ref=mp_s_a_1_29?keywords=47cc+cylinder&qid=1691943937&sr=8-29
Those are dual. A single you have to make. OR you can cut the middle out for a big single port. Those are fun.
Them are rc car engines
The RC are smaller and piston port. This is a pocket bike engine and a case reed. I have both