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Modified Engines

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new	Carbide bore

grizld1

1,721

by grizld1
Aug 23, 2012 23:55:39 GMT -5

new	Check my math please

beekay

993

by beekay
Jul 31, 2012 22:32:14 GMT -5

new	Is there any interest in high ratio primary gears

riksoto

665

by riksoto
Jul 31, 2012 19:15:45 GMT -5

new	Custom OS Valves - Opinions

beekay

1,435

by beekay
Jul 25, 2012 11:08:08 GMT -5

new	Piston dynamics calculator

mrriggs

1,170

by mrriggs
Jul 16, 2012 21:53:13 GMT -5

new	Break in - New Rings

beekay

812

by jerry57g
Jul 12, 2012 11:03:14 GMT -5

new	447 Dimensions Pages: 1 2

BubbaLeone

3,319

by BubbaLeone
Jul 3, 2012 19:15:55 GMT -5

new	WISECO BIG BORE 775cc PISTON KIT

terribletabo1

3,841

by jerry57g
Jun 28, 2012 17:26:55 GMT -5

new	Heiden Tuning Big Bore kit vs MikesXS Big Bore Kit

terribletabo1

9,257

by grizld1
Jun 11, 2012 11:19:09 GMT -5

new	aftermarket cam choices

yorke

3,272

by 80xsbobber
May 2, 2012 21:11:54 GMT -5

new	sump extension

jefferytodd

1,518

by flea
Apr 27, 2012 18:14:05 GMT -5

new	Rebuilding/Upgrading Motor. Help!! Pages: 1 2 3

johnu

3,695

by riksoto
Apr 27, 2012 13:07:31 GMT -5

new	Need dimensions of 1983 Rods for Carrillo swap

terribletabo1

1,491

by terribletabo1
Mar 14, 2012 16:02:16 GMT -5

new	Ecotrons 400cc to 800cc Small Engine EFI Kits

terribletabo1

7,510

by terribletabo1
Mar 11, 2012 20:26:00 GMT -5

new	Removing the electric start on xs500/650?

ctrdownhill

1,570

by berniebee
Mar 8, 2012 23:49:50 GMT -5

new	How much can be shaved off safely?

plattey

1,261

by jack
Feb 22, 2012 18:23:49 GMT -5

new	breather valve Pages: 1 2

jefferytodd

7,142

by crazypj22
Jan 15, 2012 16:22:50 GMT -5

new	Electric starter removal

cotton

1,422

by xsleo
Dec 10, 2011 9:15:09 GMT -5

new	Shell cam end caps

mixstup777

908

by mixstup777
Dec 3, 2011 17:21:08 GMT -5

new	Shell #1 Repro

grizld1

1,459

by grizld1
Oct 17, 2011 21:40:52 GMT -5

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Modified Engines

Modified Engine Discussion

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Shoutbox

motormike: Good Day ...just a FYI.. Wild Cat is this Labor Day weekend. Still go'n on. A few 650's still make the scene. Various rides at different skill levels each day.. awards dinner sunday eve. BS in the park'n lot after dinner.

Aug 23, 2016 7:57:01 GMT -5

lsettle: First post in over 6 years! Aug 28, 2016 19:45:17 GMT -5

kardon: Wow quiet here, where did they all go. Oct 7, 2016 2:18:13 GMT -5

gggGary: XS650.com LOL Feb 16, 2017 20:49:02 GMT -5

buell88: Anybody have any idea who built the xs650 tracker used in the Draggin Jeans Ad on Pipeburn? May 16, 2017 16:24:09 GMT -5

joshua: The regulator/rectifier unit I got from Mikes PMA has closer hole spacing than original. Are we supposed to mill the holes to fit? Jun 7, 2017 19:25:58 GMT -5

joshua: My bad. I found the bracket they supplied to mount the rectifier/regulator... Uh oh. How is this meant to work? Which way is it meant to mount? Looks like I have to use some spacers or something. Good instructions would be nice. Jun 7, 2017 22:09:52 GMT -5

craig8johnson: Not sure if this is the right spot or not but oh well... Jul 11, 2017 18:04:15 GMT -5

craig8johnson: I'm checking the charging system. I'm afraid I might have fried the last battery. With the solid state regulator (after market) what should it be charging at. The book says, I think, 15 volts. I'm hitting 17 when revved. Is that too high? Jul 11, 2017 18:06:19 GMT -5

gggGary: Yes 17 volts is too high, about 14 volts is max, sounds like you don't have the right regulator or it's wired wrong. Jul 13, 2017 6:54:33 GMT -5

dean: Just saying Hello, new member who is going to fix up a 79 XS650 that has seen its better days. I will definitely have lots of questions coming up. Jun 23, 2018 16:45:32 GMT -5

tt650: Trying to breathe life into a 1980 that's been stored (indoors) for 25 yrs. Air filters are dry rotted. Have cleaned carbs but she only runs briefly on choke then stops. Need jet setting info and other ideas that might help her idle and rev. Jul 3, 2018 19:15:19 GMT -5

trix13: Hey everyone! New to the forum and am fighting those gremlins!! New charging system, ignition switch, coil and fuse box. Resistance is higher than normal on the ignition pick up so I'm trying to find one. No such luck yet. Aug 16, 2018 8:50:48 GMT -5

trix13: Also, even though all of my connections are clean, I cannot seem to find out why , when at higher rpms, I hit the signals and the rpms pulse with the signals...hahah. same with the brake light. I appreciate all input!! Aug 16, 2018 8:55:08 GMT -5

bob99: how do I post a question. I am new to the forum Jun 6, 2019 10:52:10 GMT -5

adlpc: Hello all! Been enjoying your edifying posts and discussions - and as a fan of the XS650 since my early teenage years happy that I now own a 1980 Special which I plan to turn into a vintage half faired racer. Thank you all for being here! Oct 1, 2019 0:58:56 GMT -5

jimothyj: Hello everyone, I just joined & wish would have known about this site in 2014 when I brought my 1974 TX650A back from the grave. I have spent a good deal of $$ and alot of time on it. Just painted it and working on electrical, I will post pics soon, Apr 10, 2021 2:14:13 GMT -5

louisvan: trix13 - I had a problem with my 1975 SX650. When I got to highway speeds, the engine lost power. The problem was in the connectors. At a certain vibration and the wind pushing on the wiring loom, the connector lost continuity. A bad crimp to the wire. May 20, 2021 1:19:09 GMT -5

deadlykittin: Hey guys,. i have a 82 xs650 special, super new rider, with almost no knowledge on bikes. So was just riding it, getting used to the clutch and all that. But i was noticed its really hard to get the bike to start, using electric start. And the kick pump--- Aug 4, 2022 17:09:55 GMT -5

deadlykittin: loses compression after the first kick. Ontop of that, i noticed it 1, wont go into neutral when sitting still. and now it dies after getting it started in neutral and going into gear Aug 4, 2022 17:11:01 GMT -5