Posts Tagged 'piston port'

LAGUNA GPR Y’ALL

so it’s time for the laguna’s piston port to go.
every bolt holding that engine in was loose and covered in oil. the pipe was barely on there. this bike has had issues in the past with loosing exhaust nuts and i can see why, there’s not much room in there to get a wrench on anything! i would use those long allen nuts on this thing if i were going to keep the engine.
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having never removed the engine from a laguna, i didn’t realize the swing arm pivot bolt had to come out, and that the kickstand/rear engine bracket thing was all together. kinda neat? anyway, it all came out easy enough.
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new lump next to old lump. the gpr engine is quite a bit shorter.
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i set the engine in the frame to get a look at things. it fits nicely! this is going to be a piece of cake! with some simple plate brackets welded to the frame the engine will go right in. sprockets line up perfect.
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the engine is sitting in there a bit more forward than it will when it’s mounted i think, i have a ton of room to put it where i want to.
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so yeah, the engine with the puch gila kit, custom atomic mopeds intake and derbi pipe modified to fit the gila are all up for grabs. i’ll probably post it in the buy/sell on moped army soon, but friends get dibs (if you reading this i consider you my friend! probably).
also up for grabs are the laguna plastics. the left hand side plastic has the bottom tab broken off, but i think the tab is still bolted to the bike, so one could possibly plastic weld them back together.
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the engine looks right at home in the laguna. i love that it says derbi all over it too, once it’s all mounted it’ll look like it came this way from spain.
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derbi laguna gpr

i moved my tool box upstairs into the moped shop area which allowed me to finally rip the engine out of the gpr. i didn’t get any pictures of that, but it was a bitch. remember the first time you tried to re-install the engine in a ciao? how frustrating and impossible that was? this was like that, but worse.
then i realized i was doing it wrong and the dumb thing came right out.
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i put the gpr in the corner and put the laguna up on my lift. that’s where things sit at the moment, but i think i’ll go in tomorrow and pull the engine out of it. it’ll be up for grabs if someone wants it, along with the pipe and probably a few other laguna goodies! get at me and we’ll talk money!
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the piston port moped engine is quite a bit longer than the gpr 6 speed lump, which means it should go in relatively easy with extra room inside the frame for the radiator.
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some preliminary plans include a hand made sheet metal tail section that may include the exhaust baffle, possibly hand made sheet metal tins for the sides, and maybe even a mini fairing, similar to what it already has, but not broken and awkward.
a nice fork will be in the works, with a better front brake, maybe some handle bars instead of clip-ons. we’ll see!

oh man, i have so many fun projects going on!


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