I have a 90 which had no compression. so i took it apart and found that the gaskets were bent and blown and that the piston has a small quareter inch wide, barely visible scrape/dent on it. does this mean i should replace the piston?
At The Back Of The Pack
Arm chair racerFirst time rider
I have a 90 which had no compression. so i took it apart and found that the gaskets were bent and blown and that the piston has a small quareter inch wide, barely visible scrape/dent on it. does this mean i should replace the piston?
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
Got The Holeshot
Arm chair racerJust too addicted
i think we need some pics but sounds to me like you bent a valve
proud owner of a trx300ex quadand an 85 atc 70
Power User
The day begins with 3WW
X2 on the pics.
At The Back Of The Pack
Arm chair racerFirst time rider
K. i'll try to get them tommorrow. if it's a bent valve, the engine turns over just fine.
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
At The Back Of The Pack
Arm chair racerAt the back of the pack
do you have normal compression?
Power User
Roostin Away
The first thing he said was that he has no compression.
Could it be the normal dent that is in some pistons? Sounds like you found the problem with the gaskets being blown.
Originally Posted by fabiodriven
At The Back Of The Pack
Arm chair racerFirst time rider
Well, it has the normal indents, but where one is supposed to be it's all bent and messed. The photo's not too good, but here it is. And yes i know the engine's rusty and the cylinder is too, but i'm doin a makeover and derust on it to get it runnin
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
Power User
4 Wheels? Huh?
if it's rusty....bore that pig!!!
why mess around?
80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
2012.....Replaced the 350x motor for a 444cc YZ426
WWW.HREATV.COM
At The Back Of The Pack
Arm chair racerFirst time rider
That'll come later. It'll get done. it still turns over just fine and is now in a place where i'm gonna clean it up. But will it still work with the piston in the shape that it is?
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
Power User
4 Wheels? Huh?
if the bore is rusty then no, it shouldn't run good at all.
dents never bothered me on my little trikes. just sand the sharp edges with 220 so you dont get hot spots.
80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
2012.....Replaced the 350x motor for a 444cc YZ426
WWW.HREATV.COM
Power User
The day begins with 3WW
That doesnt look like a stock piston to me and why is it so clean with no carbon was it ever run ? possibly an old NASA big bore piston @ 54/55mm .
78 atc 90/180cc Dickson Full Suspension
76 ATC90/180cc Nicholson
77 atc 90 Dickson Full Suspension
84 KLT 110/123cc Powroll Racer from 80s
87 atc 125m stock
84 atc 200x Curtis Sparks
84 atc 200x Powroll My race bike from 80's
83 atc70/108cc Powroll blue Xmas Special
81 atc185s HP-ATC full suspension
Performance Shop is Open PM me for Service
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At The Back Of The Pack
Arm chair racerFirst time rider
possibly. it does say it was made in 99, only 2 years before the trike was last registered so it looks fairly new
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
At The Back Of The Pack
Arm chair racerFirst time rider
And it is also possible that it's never been used, because it's been sitting for about that long too
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
Power User
4 Wheels? Huh?
i never seen a date on a piston.
80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
2012.....Replaced the 350x motor for a 444cc YZ426
WWW.HREATV.COM
At The Back Of The Pack
Arm chair racerFirst time rider
it says something like 99 on the top. it might just be nutin though
3 wheelers:
'85 ATC 110 (its my first restoration!!)
Saving up for a 250r later this year!
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