new used modded skyhawk 90
#1
mods include a trx250r frame modified and scaled off a cobra frame for dimensions, full 250r front arms, works shocks, steering, hubs, disc brakes ect. durablue axle, pro taper bars, AC pro peg nerfs, elka rear shock with compression and rebound adjust... and a nice blingy gas cap and breather LOL. not sure what else not sure if I really care lol. needs more power tho. so I think I'll start with the variator and sprockets and see what I can come up with. I want similar off the line punch, maybe even more punch, and ALOT more top end. so maybe a milled head and good porting will be needed but for now gearing and roller weights are the main adjustments I'll try..
oh, I got it from a buddy for $800, it also came with a box full of top end kits, a full spare motor that's a 110cc stroker (not gonna run it til he can't race in the 90cc class anymore or this motor goes and we absolutely NEED to use it to have a running bike (won't race 90 with it tho). also came with like 5 or 6 boxes of stuff, it has different weight rollers all brand new. top ends/gasket kits and stuff... I mostly wanted the bike alone figuring the frame can hold a shifter motor later and I can use 250r stabilizer and long travel stuff. thinking fox float evols one day for it and my 450 so I can learn to air them for rider weight to optimize them for us better, we'll see... maybe just standard travel +2 arms would be a nice upgrade for now.
kaseadaytime.jpg?t=1286740933




his is my son doing a lap on the kiddie track (keep in mind this is after I rebuilt the jump with my boots a flap of cardboard and salt water that I had to scale a cliff with a rope and bucket to get, no seriously, next time I'll get a vid of that part too lol) so we didn't bother really hitting the adult track as it was totally destroyed and needed more than a confused piece of cardboard thinking it was a shovel to fix...
Noafulllap.mp4 video by hawaiianbasshead - Photobucket
this is my kid getting a little more air off the jump since I was yelling at him to go faster LOL
fasterjump.mp4 video by hawaiianbasshead - Photobucket
it's definitely slower than the LT80 but in the kasea's defense the LT80 is pretty modded, 26mm mikuni roundslide carb, vforce reeds, milled head, FMF pipe and Uni filter setup no airbox. it has 14t front and 25t rear sprockets so alot higher top speed and it still has plenty down low and will pull wheelies with me on it anywhere that it gets full traction. I did an accidental wheelie on the lawn actually just moving it and decided to hold it lol.
I'm looking to play with the roller weights but need to learn more about it to see if I need to adjust clutch springs and what not. or find info on techniques to match spring setups to weights and what not... anyone have any advice lmk please! I'd love to get it as powerful as the LT80 or more if I can. I'd like to build another one with the 110cc to play on or just sell it maybe.. also came with a couple polini clutch things, the entire rear setup and one just the bell housing thing whatever it's called. should I sell those things? they look new... it probably has one like that in it already. it has holes all throughout it to lighten it it looks like... it's the part the rear clutch pads grab to spin the countershaft...
oh, I got it from a buddy for $800, it also came with a box full of top end kits, a full spare motor that's a 110cc stroker (not gonna run it til he can't race in the 90cc class anymore or this motor goes and we absolutely NEED to use it to have a running bike (won't race 90 with it tho). also came with like 5 or 6 boxes of stuff, it has different weight rollers all brand new. top ends/gasket kits and stuff... I mostly wanted the bike alone figuring the frame can hold a shifter motor later and I can use 250r stabilizer and long travel stuff. thinking fox float evols one day for it and my 450 so I can learn to air them for rider weight to optimize them for us better, we'll see... maybe just standard travel +2 arms would be a nice upgrade for now.
kaseadaytime.jpg?t=1286740933




his is my son doing a lap on the kiddie track (keep in mind this is after I rebuilt the jump with my boots a flap of cardboard and salt water that I had to scale a cliff with a rope and bucket to get, no seriously, next time I'll get a vid of that part too lol) so we didn't bother really hitting the adult track as it was totally destroyed and needed more than a confused piece of cardboard thinking it was a shovel to fix...
Noafulllap.mp4 video by hawaiianbasshead - Photobucket
this is my kid getting a little more air off the jump since I was yelling at him to go faster LOL
fasterjump.mp4 video by hawaiianbasshead - Photobucket
it's definitely slower than the LT80 but in the kasea's defense the LT80 is pretty modded, 26mm mikuni roundslide carb, vforce reeds, milled head, FMF pipe and Uni filter setup no airbox. it has 14t front and 25t rear sprockets so alot higher top speed and it still has plenty down low and will pull wheelies with me on it anywhere that it gets full traction. I did an accidental wheelie on the lawn actually just moving it and decided to hold it lol.
I'm looking to play with the roller weights but need to learn more about it to see if I need to adjust clutch springs and what not. or find info on techniques to match spring setups to weights and what not... anyone have any advice lmk please! I'd love to get it as powerful as the LT80 or more if I can. I'd like to build another one with the 110cc to play on or just sell it maybe.. also came with a couple polini clutch things, the entire rear setup and one just the bell housing thing whatever it's called. should I sell those things? they look new... it probably has one like that in it already. it has holes all throughout it to lighten it it looks like... it's the part the rear clutch pads grab to spin the countershaft...
#2
well.... I decided since I wasn't gonna run the spare motor to open it and see what all it was made of. it's a 54 or 53mm top end, and altho there were a few spacer plates in one of my parts boxes the current top doesn't have a spacer so I'm thinking it's a bored up to 54mm 110cc motor
the clutch side was more shadyness... no belt, no weights in the variator, 2 of the 3 sliders on the roller plate were missing
I think he may have lied about the porting too. where's a good place to get a done up top end? I see there are kits on ebay but they're all bored out. I just want a nice ported top that my kid can run in the 90 mod class...
the bike does have a 28mm flatslide sunworld carb, I checked size with my caliper inner diameter on the outlet side to the intake manifold which is a koso one... didn't get to check reeds or compression figured it was running and I want to get a ported top end anyway so long it runs I don't care what the compression is at lol.
I checked out max rpms' site but didn't find any info on porting... where else is a good place to check into?
also is there any good tutorials online for these motors? I'd like to familiarize myself with it so I don't fret on the wrenching
thanks!
Tom
the clutch side was more shadyness... no belt, no weights in the variator, 2 of the 3 sliders on the roller plate were missing
I think he may have lied about the porting too. where's a good place to get a done up top end? I see there are kits on ebay but they're all bored out. I just want a nice ported top that my kid can run in the 90 mod class...
the bike does have a 28mm flatslide sunworld carb, I checked size with my caliper inner diameter on the outlet side to the intake manifold which is a koso one... didn't get to check reeds or compression figured it was running and I want to get a ported top end anyway so long it runs I don't care what the compression is at lol.
I checked out max rpms' site but didn't find any info on porting... where else is a good place to check into?
also is there any good tutorials online for these motors? I'd like to familiarize myself with it so I don't fret on the wrenching
thanks!Tom
#4
how much would you charge for porting and milling/cleaning up a head?
I looked at all the top ends that came with ours and they're pretty well used. they all look like they work. but not anything worth putting more money into. more likely he kept them around to have functional spares lol. so that's what I was thinking of keeping them around for.
so with that in mind if I do freshen the top end I'm going to buy a new full kit possibly to get ported. do you happen to have a price for sourcing the entire thing from you already worked? lmk, thanks,
Tom
I looked at all the top ends that came with ours and they're pretty well used. they all look like they work. but not anything worth putting more money into. more likely he kept them around to have functional spares lol. so that's what I was thinking of keeping them around for.
so with that in mind if I do freshen the top end I'm going to buy a new full kit possibly to get ported. do you happen to have a price for sourcing the entire thing from you already worked? lmk, thanks,
Tom
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