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If using premium fuel in stock low compresion GS motorcycles causes preignition or detonation then there would be a lot of them with holes in the pistons. I know a lot of people who use premium in there bikes and have no problems.
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Engine was completely stock, actually it was running GREAT, then I heard a noise that sounded like my keys were hitting the handlebars, I grabbed the keys the noise did not stop, I went to pull off the freeway & suddenly started losing power. Got to a gas station, let it cool off, it started back up just fine, rode it around the parking lot, no problem, went back on the road & it started to lose power again. I babied it down the road a few miles, pulled off the road & waited for a ride. Towed it home, pulled it apart thinking that it couldn't be that bad......Comment
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That sound was detonatioin.1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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As you well knowOriginally posted by chef1366 View Post1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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That's a low blow, Big T. But you're right, if anyone's a guru on detonation, it's gotta be Bill!Originally posted by Big T View Post
:) The road to hell is paved with good intentions......................................
GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
GS 850GT JE 1023 11-1 pistons. Sold
GS1150ES3 stock, V&H 4-1. Sold
GS1100GD, future resto project. Sold
http://i155.photobucket.com/albums/s...s/P1000001.jpg
http://i155.photobucket.com/albums/s...s/P1000581.jpgComment
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1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
1985 GS1150ES stock with 85 Red E bodywork.
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I've got a damaged oil ring and a scored sleeve from a previous assembly, hanging on my wall of shame!!Originally posted by chef1366 View PostWhat ya'll have on your wall of shame?
:) The road to hell is paved with good intentions......................................
GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
GS 850GT JE 1023 11-1 pistons. Sold
GS1150ES3 stock, V&H 4-1. Sold
GS1100GD, future resto project. Sold
http://i155.photobucket.com/albums/s...s/P1000001.jpg
http://i155.photobucket.com/albums/s...s/P1000581.jpgComment
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Dalknob, where are you located?Comment
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Not too much.Originally posted by chef1366 View PostWhat ya'll have on your wall of shame?
A shim that shattered when the "special tool" slipped off the edge of the bucket before the shim was in place.
#1 son insisted he was not racing when he twisted the driveshaft on his 650:
A broken valve that happened AFTER running the engine at 4,000 rpm to check stator outputs.
Not bike related, but on the wall, anyway, a piston from my turbo Corolla.
We were trying to get the jetting right, we missed it by this much:
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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Just north of DetroitComment
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Where did I put my airplane piston?Comment
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It's not a Lycoming IO-720? Nah, they used to break crankshafts on the early models.Originally posted by tkent02 View Post
:) The road to hell is paved with good intentions......................................
GS 850GN JE 894 10.5-1 pistons, Barnett Clutch, C-W 4-1, B-B MPD Ignition, Progressive suspension, Sport Demons. Sold
GS 850GT JE 1023 11-1 pistons. Sold
GS1150ES3 stock, V&H 4-1. Sold
GS1100GD, future resto project. Sold
http://i155.photobucket.com/albums/s...s/P1000001.jpg
http://i155.photobucket.com/albums/s...s/P1000581.jpgComment
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