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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#1
05-14-2019, 11:06 AM
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Upgrade follow-up
Original Project:
http://buggymasters.com/forum/showthread.php?t=5604 Finally got some time to play with the buggy a bit. Since I had to cut away the top of the cooling shroad to fit the bigger head in, I decide to upgrade the cooling a bit (because I like to over complicate things). Spliced the wires from a TrailTech fan kit to a Setrab oil cooler. Tossed the banjo bolts for the oil ports on the engine case and replaced with 12mm to AN adapter and made some oil lines with AN swivel connectors. I still hate the rear shocks as they feel too soft, but whatever. I hope to take it out for a good hooning this weekend.
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B 
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#2
05-15-2019, 07:51 PM
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That's looking good! I see you have mounted the oil cooler up on the frame. That's a good place to get the full benefits from the cooler. there are a few issues with mounting the cooler up high. Firstly, the oil level in the case, the cooler and lines hold approximately 25% of the oil in the motor. This means while running, the oil level in the case is below optimum operating level. adding more oil to case means when you shut down oil in the lines and cooler drain back to the case and you got a overfill problem.
secondly the fittings in the case half are tapped in the galley that feeds oil to the head. Starting up after the oil has drained from the cooler and lines. there is a delay of oil pressure to the head while the lines and cooler are filling. I don't know if there is a real issue with this but my instincts tell me the head is running dry too long. The cure for all this is to simply invert the cooler so the inlets are on Top. the cooler stays full and primed. fill the cooler with oil then the case and life is good. I installed a T-fitting in one of the cooler outlets to give a place to connect a oil pressure gauge. that gauge shows you what is happening.
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#3
05-16-2019, 07:20 AM
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I'd been thinking the same thing. I'm going to weld a new mount for the shifter and move the oil cooler to what used to be the passenger foot well/leg area.
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B
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#4
05-19-2019, 06:26 PM
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Nice work
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
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#5
05-20-2019, 08:05 PM
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Moved oil cooler and shifter
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B
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#6
05-23-2019, 10:33 PM
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 nice
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"LUCIFER" JOYNER JD400, CROSSHAMMER 250R, YERF GX150, CROSSFIRE MBX150, BMS 800V-TWIN '16 RZR 900s , '17 ACE 900XC, '99KX250, '94 KDX200, '18 SSR SR170TX
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#7
05-27-2019, 06:34 PM
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Took it for a good blast today. I put on a bigger output sprocket during the rebuild and it still has plenty of pull. Don't know top speed yet, but I got scared at 42 mph, as the suspension feels iffy even at slight bends in the trail at that speed. Tiny bit of bog at about 1/4 throttle, but rips after that. Up hills no problem. Hate the shocks, things get spongy and weird at speed..
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B
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#8
05-28-2019, 08:09 AM
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I had run the valve cover breather up into the "cargo rack" hoping that vented oil would drip back down, but I'll have to add a little catch can or something as under hard driving it builds up in the filter and drips all over everything. Honestly, I'm just glad the head is getting plenty of oil
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B
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#9
06-16-2019, 06:48 PM
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After a heavy rip around the trails, the catch can sounds like I'm making espresso, but no more dripping oil.
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2013 Trailmaster XRX 150 Type 86 stroker Taida 4V head with 23/22mm valves, forged 4V piston,Taida 62mm jug,forged Taida 8200 KDU stroker crank, Koso high-flow oil pump, Taida case half w/ oil cooler ports, Setrab oil cooler,TrailTec Vapor, Mikuni VM26-606, aluminum 30mm intake, Uni filter, aluminum stack, Hammerhead racing exhaust, MotoRio adjustable CDI/HO Coil, Iridium plug, Full Dr Pulley CVT kit w/ 16g sliders, JD's Mikuni slide kit 2014 Kandi 90B
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