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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#1
02-02-2014, 01:33 PM
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engine build questions
So, I've (theoretically) put my motor back together after doing a full Dr Pulley CVT upgrade, and BBK, 4V head install. The head came with the suposedly longer timing chain needed(94 link), but it seems too tight (to me). It feels like there is no flex left to install the tensioner (PIC1). Close up of the head (Pic2). And what the hell are these things that came with the head for? (Pic3) I'm wondering if they go into the valve cover bolt holes to keep oil from leaking out,
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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
02-02-2014, 01:58 PM
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First off, did you retract the tensioner all the way? My stock chain felt a little tight after installing cam too, but when I installed tensioner it went in fine. Make sure you retract tensioner and hold it in place with the screw driver then once the 2 bolts are secured you can remove screw driver and tensioner will do extend out and apply necessary tension.
I have never seen those plugs in my stock engine. sorry.
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Growing old is mandatory  Growing up is optional  https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#3
02-02-2014, 02:02 PM
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Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#4
02-02-2014, 03:49 PM
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Yup, that did it.. Still don't know what the four seals/bushings things are for though. They fit in the top of the valve cover, but its tough to put the bolt through them because of the ridge on the bottom of the bolt.
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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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#5
02-02-2014, 03:59 PM
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That is good that cam is done, but weird on those plugs.
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#6
02-02-2014, 04:02 PM
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I found it!!! Look here. In this picture.
http://www.aliexpress.com/store/prod...526718575.html
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#7
02-02-2014, 04:03 PM
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looks like the bolts for the cam cradle, may to reduce vibration.
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#8
02-02-2014, 04:27 PM
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You're good! engine studs go through the cam cradle, but they're probably so it doesn't puke so much oil out the valve cover. Some of these cheaper 4V heads have been known to be a bit vomity. Sycarms has already done a P&P to this 4V, but when I get some more cash I'm thinking of getting the Taida 4V head. $200 more than this one that I got for $247.00
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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
02-02-2014, 04:29 PM
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Thanks hope it all works out for you. Your buggy is gonna be a beast. Did you go BBK too?
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#10
02-02-2014, 04:39 PM
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Yup, just a 5cc upgrade though.
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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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#11
02-02-2014, 05:58 PM
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That is cool!
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#12
02-02-2014, 10:01 PM
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Except apparently neither of my tool sets contain a 9mm wrench.. Really?! I admit, I've never needed one until it was time to adjust the valves... Oh well, guess I'll hit the depot on my way home from work tomorrow..
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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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#13
02-06-2014, 12:02 AM
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Did you get everything finished? You pretty much have done every available performance upgrade. Hoping to hear to moderate to big improvement compared to stock.
__________________
Growing old is mandatory Growing up is optional https://www.youtube.com/watch?v=NEXoa-8d7qE |
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#14
02-06-2014, 09:10 AM
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Well.. I ran into a little snag, the store that sold me the 4V head shipped them without the supposedly included long cylinder studs. I've been chasing the store for them since November. Well, I just went and got me some and one set of studs was a wee bit too long and as I was screwing down the valve cover i snapped a bolt. Just waiting on a replacement that should be here today.
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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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