steve-uk
Manners cost nothing
- Location
- Barrie - ontario
thanks robbie... hoping for a test ride mid week!
Custom/Hybrid Canadian Freestyle ROK Rebuild
- Thread starter steve-uk
- Start date
steve-uk
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- Location
- Barrie - ontario
first fire....
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- Location
- Seattle wa
Sounds good great job!
steve-uk
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- Location
- Barrie - ontario
well first ride wasnt without problems it seems
when i pulled the plugs the front cylinder was milky white, compression was 190 rear and 210 front
pulled the head slight pitting on the pistons, too much compression
so have swapped in some 40cc domes, compression is now a even 170 front and rear, will take it for a short ride tomorrow and check again to make sure all is good, for now im going to run the pistons, so wish me luck
double checked the timing curev.. the joins of having a programmable ignition!
skis back together!
when i pulled the plugs the front cylinder was milky white, compression was 190 rear and 210 front
pulled the head slight pitting on the pistons, too much compression
so have swapped in some 40cc domes, compression is now a even 170 front and rear, will take it for a short ride tomorrow and check again to make sure all is good, for now im going to run the pistons, so wish me luck
double checked the timing curev.. the joins of having a programmable ignition!
skis back together!
- Location
- Hamilton Ontario
the dual carbs looks sweet steve! Good luck on the test flight tm
steve-uk
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- Location
- Barrie - ontario
unfortunately 93 octane... fortunately it was 20mins or less of running
steve-uk
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- Location
- Barrie - ontario
thanks marc... your and yamapod should come up and ride this weekend.....
steve-uk
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- Location
- Barrie - ontario
yeah the 210 wasnt on purpose.... ive changed the domes now to 40cc, running 170psi
steve-uk
Manners cost nothing
- Location
- Barrie - ontario
well seems the gods arent shining on me
heres a quick history lesson, when i got the motor i noticed the front cylinder was scored, i was told low hours on the motor, but that the guy had blown an oring, when i took the head off, i noticed the back pistion/dome had normal wash and the front had nothing
so i had a chat with jetworks, they said they though it was a leak from the exhaust manifold
decided to have the pistion bored out to 84.5
all was good, test ride last week, pulled the plugs and the front was covered in cream....
also had 190psi in rear, 210 psi in front
when i pulled the head, id not intalled the two o-rings between the dome and head, my bad, so thinking this is the issue, i replaced the domes with 40cc, all new orings, compression test now read 170 psi front and rear so im happy
took the ski to the lake last night, pulled off the trailer and warmed it up for say 30-60 secs
stopped the ski, went to start it again and it wouldnt start... battery was dead
no problem, just sucks but theres always tomorrow
get it back, pull the plugs... same issue, cream all over the front piston, compression test, rear 170 psi, front now 190psi...so wtf
with everything else going on i just dont have the time or energy to sort this out
i think maybe decking the cylinder will resolve the issue
but right now i have over $3500 into this short block, even if i try to sell it i have no idea what price point to put on it, some one who has more time than me could probably sort this out pretty easily
right now i need a ski i can ride then put away and ride again
very frustrated right now, i spend all winter helping other people out and leave my poop until the last minute and this is what i get for it
heres a quick history lesson, when i got the motor i noticed the front cylinder was scored, i was told low hours on the motor, but that the guy had blown an oring, when i took the head off, i noticed the back pistion/dome had normal wash and the front had nothing
so i had a chat with jetworks, they said they though it was a leak from the exhaust manifold
decided to have the pistion bored out to 84.5
all was good, test ride last week, pulled the plugs and the front was covered in cream....
also had 190psi in rear, 210 psi in front
when i pulled the head, id not intalled the two o-rings between the dome and head, my bad, so thinking this is the issue, i replaced the domes with 40cc, all new orings, compression test now read 170 psi front and rear so im happy
took the ski to the lake last night, pulled off the trailer and warmed it up for say 30-60 secs
stopped the ski, went to start it again and it wouldnt start... battery was dead
no problem, just sucks but theres always tomorrow
get it back, pull the plugs... same issue, cream all over the front piston, compression test, rear 170 psi, front now 190psi...so wtf
with everything else going on i just dont have the time or energy to sort this out
i think maybe decking the cylinder will resolve the issue
but right now i have over $3500 into this short block, even if i try to sell it i have no idea what price point to put on it, some one who has more time than me could probably sort this out pretty easily
right now i need a ski i can ride then put away and ride again
very frustrated right now, i spend all winter helping other people out and leave my poop until the last minute and this is what i get for it
- Location
- Orange County, CA
stick with it. it seems your 98% there.
although at this point, if you deck the cylinder, it could work great and good to go, or issue could persist and you're out the cash. So i guess i understand where you're at with the frustration.
couple years back i couldn't get a SN to run for crap. not having an oring head and using OEM gasket, i pushed pulling the head, when i did i found out the gasket was fried. after that a cooling line clog etc. sucked but it's finally good to go. give yourself a little time to detox from it then find you're next wind and jump to it!.
although at this point, if you deck the cylinder, it could work great and good to go, or issue could persist and you're out the cash. So i guess i understand where you're at with the frustration.
couple years back i couldn't get a SN to run for crap. not having an oring head and using OEM gasket, i pushed pulling the head, when i did i found out the gasket was fried. after that a cooling line clog etc. sucked but it's finally good to go. give yourself a little time to detox from it then find you're next wind and jump to it!.
- Location
- Seattle wa
I would check that cylinder for a crack also find yourself a straight edge and check the cylinder and the head for warpage.
steve-uk
Manners cost nothing
- Location
- Barrie - ontario
thanks man, supposed to be heading to wavedaze on weds, cant see me taking a ski at this point
- Location
- New York Crew
Straight edge and a feel er gauge to cyl deck, head shell and domes. Check for problems, look for clues, youre close keep looking.
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steve-uk
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- Location
- Barrie - ontario
brian.. im done with it .. looks like the sleeves maybe below the top of the cylinder, just posted it up for sale.. thats how frustrated i am
steve-uk
Manners cost nothing
- Location
- Barrie - ontario
ok.. had a smoke... put a straight edge on, cant get any feel er gauge under there, so thats not it
- Location
- Harveys Lake PA
I may be wrong, but do I see silicone sealant of some sort on top of the cylinders in the pics with the head off? I have always been told on a head with o rings put nothing on but a little grease to keep the o ring in place. I have had o ring seals leak on me before because of using silicone, It did something to the rubber.
http://www.adaracing.com/pdf/ya701m.pdf
http://www.adaracing.com/pdf/ya701m.pdf
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- Location
- New York Crew
Good eye i wondered what that was. Steve. Is that silicone?
steve-uk
Manners cost nothing
- Location
- Barrie - ontario
hey brian
with an ATP head you use grease to hold the orings in and then use rtv on the cylinder surfaces, so its the rtv you can see
also remember this happened after 60seconds of running the ski
with an ATP head you use grease to hold the orings in and then use rtv on the cylinder surfaces, so its the rtv you can see
also remember this happened after 60seconds of running the ski