LT500R - Engine

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Watchout using VP 110 with 927 Watchout using VP 110 with 927 RUn2it · March 20, 2019, 10:14:48 pm It was cold at Glamis and went through 25 gal of Sunoco Standard (110 using R+M/2) in the LT500, so a buggy trip to across the h... 3 Replies · 1953 Views Started by RUn2it	3 Replies 1953 Views	March 21, 2019, 09:38:09 pm by RUn2it
How to tell if your head has been decked to correct Squish How to tell if your head has been decked to correct Squish bigbird337 · February 18, 2019, 04:12:59 pm I just came into an 87 lt500r. I have started to tear down the engine to replace the stock piston and the thrust washers. How c... 2 Replies · 2213 Views Started by bigbird337	2 Replies 2213 Views	March 20, 2019, 10:31:15 pm by RUn2it
LT500R to 400cc engine mods to make NEEDT Legal LT500R to 400cc engine mods to make NEEDT Legal Scott270R · February 25, 2019, 10:28:21 am Hello,The NEEDT rules have recently changed for TT and Short Track racing in 2019 allowing 400cc 2 strokes to run against 450cc ... 6 Replies · 1616 Views Started by Scott270R	6 Replies 1616 Views	March 20, 2019, 06:17:39 pm by RUn2it
87 lt500r compression 87 lt500r compression bigbird337 · February 14, 2019, 09:15:51 am I have a all stock 500. It has never been torn down. I have 150psi compression and going to tear it down to do thrust washers. I... 1 Replies · 1093 Views Started by bigbird337	1 Replies 1093 Views	February 14, 2019, 12:59:56 pm by MotorGeek - Jerry Hall
1990 LT500R Coolant Bleeder Screw in Head broke off 1990 LT500R Coolant Bleeder Screw in Head broke off Pincoin · January 01, 2019, 02:54:01 pm Anybody have any good tips on removing a broken stump out of a coolant bleeder screw hole on a 1990 Zilla? Thanks for any help 4 Replies · 1062 Views Started by Pincoin	4 Replies 1062 Views	January 05, 2019, 05:08:16 pm by Pincoin
HELP ZILLA ENGINE SPUTTERS TOP END ONLY HELP ZILLA ENGINE SPUTTERS TOP END ONLY Duneatic1970 · May 29, 2018, 09:40:15 am Can someone please help me with this? When i was riding my zilla it started sputtering only at top end all the sudden. Ive check... 10 Replies · 1409 Views Started by Duneatic1970	10 Replies 1409 Views	October 24, 2018, 07:20:11 pm by Hotbutta
carb selection carb selection scott zimmerman · July 21, 2018, 03:14:33 pm should i use my 87 stock carb or my 38 bored to 40mm air striker quad vent? with a aaen pipe and port on my 540 4 Replies · 1451 Views Started by scott zimmerman	4 Replies 1451 Views	October 21, 2018, 09:16:42 pm by Beanbom
front sprocket nut torque front sprocket nut torque 88LT500 · October 12, 2018, 07:27:21 am Hey guys, I rebuilt my 500 engine and the front sprocket shaft spins nice and smooth when in neutral. I tightened up the front ... 3 Replies · 1275 Views Started by 88LT500	3 Replies 1275 Views	October 16, 2018, 07:51:32 am by 88LT500
leak down test readings leak down test readings 88LT500 · August 28, 2018, 08:52:11 am Hey Guys, i completely rebuilt my 88 LT500 engine. I did a leak down test. I started at 6psi and it dropped to 3psi after 6 mi... 4 Replies · 1738 Views Started by 88LT500	4 Replies 1738 Views	September 02, 2018, 09:42:06 pm by MotorGeek - Jerry Hall
89 zilla fresh rebuild carb issues 89 zilla fresh rebuild carb issues BeardedSavage · June 20, 2018, 06:50:15 pm I have a 89 zilla that just had the engine rebuilt bottom to top, the po did a top end rebuild and didn't put the wrist pin thru... 3 Replies · 910 Views Started by BeardedSavage	3 Replies 910 Views	July 17, 2018, 01:37:42 am by BeardedSavage
Jetting help Jetting help Flyinrazrback · June 05, 2018, 08:46:29 am All, looking for some starting jetting recommendations. 87 top end with moderate porting, o-ring head and dome set to run on 110... 11 Replies · 2660 Views Started by Flyinrazrback	11 Replies 2660 Views	July 17, 2018, 01:10:51 am by All American
LT 500 Jetting - Carboning Up LT 500 Jetting - Carboning Up Dzolalaw · May 06, 2018, 06:32:39 pm My setup:1987 ZillaFMF pipe and SilencerAir box intactAir box lid removedK&N filter w/outerwear (normal size filter)Boysen Reeds... 2 Replies · 971 Views Started by Dzolalaw	2 Replies 971 Views	May 22, 2018, 08:21:19 pm by luciano
Basic Jetting - Rich Condition Basic Jetting - Rich Condition Dzolalaw · May 06, 2018, 06:26:51 pm My setup:1987 ZillaFMF pipe and SilencerAir box intactAir box lid removedK&N filter w/outerwear (normal size filter)Boysen Reeds... 2 Replies · 785 Views Started by Dzolalaw	2 Replies 785 Views	May 06, 2018, 06:35:32 pm by Dzolalaw
87 Lt500 new carb suggestions 87 Lt500 new carb suggestions jpcon · April 08, 2018, 03:53:36 pm I have a 87 lt 500 in need of a new carb the slide is worn bad on the stock carb wich is a 43B00, Im wanting to know if i buy a ... 1 Replies · 678 Views Started by jpcon	1 Replies 678 Views	April 29, 2018, 06:41:40 pm by El Diablo
replacement carb replacement carb Chuck4379 · February 23, 2018, 05:53:32 pm 87 zilla with 43b00 carb. I was wanting to replace my carb because slide is worn and it's time for 30 year old carb to go. My qu... 6 Replies · 1385 Views Started by Chuck4379	6 Replies 1385 Views	April 17, 2018, 09:00:41 pm by Chuck4379
What's up with the store, are Cometic AFM base gaskets still available? What's up with the store, are Cometic AFM base gaskets still available? RUn2it · April 09, 2018, 11:39:57 am Like the header says, are Cometic AFM base gaskets still available? Is the store fading away? Cometics web site search is useles... 1 Replies · 510 Views Started by RUn2it	1 Replies 510 Views	April 10, 2018, 07:37:19 am by Q2W
head gasket sealer head gasket sealer 88LT500 · January 26, 2018, 03:03:59 pm Anybody ever thought of putting a light coat of copper anti seize on each side of the head gasket to make a good seal? Seems li... 3 Replies · 1067 Views Started by 88LT500	3 Replies 1067 Views	February 01, 2018, 07:39:20 am by Iceracer
Bar's Leak? Bar's Leak? JDaivs1 · January 14, 2018, 10:32:13 am Those of you who used Bar's Leak in your coolant systems, which Bar's Leak to use? There is about four different ones for the co... 2 Replies · 539 Views Started by JDaivs1	2 Replies 539 Views	January 16, 2018, 08:20:05 am by MotorGeek - Jerry Hall
Flywheel touching stator on lighting coils Flywheel touching stator on lighting coils Mr.Sampson · September 29, 2017, 06:11:55 pm I have had a issue of my flywheel touching stator .... I have had same stator in bike for over a year without issue... I have st... 4 Replies · 1060 Views Started by Mr.Sampson	4 Replies 1060 Views	December 27, 2017, 08:21:13 pm by Mr.Sampson
PLEASE HELP, I NEED A RIGHT SIDE CRANKSHAFT!!! PLEASE HELP, I NEED A RIGHT SIDE CRANKSHAFT!!! 88LT500 · November 23, 2017, 07:50:51 am I was splitting the cases on my 88 LT500 and the nut for the crankshaft has red threadlocker on it. I heated it up and put the ... 2 Replies · 510 Views Started by 88LT500	2 Replies 510 Views	November 24, 2017, 03:15:47 pm by 88LT500
1988 zilla 1988 zilla Szillahickson · August 30, 2017, 06:21:39 pm How's it going guys ,I recently got a 1988 zilla .my friend has one and I compared them I have a cooled head carbon fiber reeds ... 21 Replies · 2717 Views Started by Szillahickson	21 Replies 2717 Views	September 17, 2017, 05:53:21 pm by Szillahickson
LT500R 4th drive gear year ID LT500R 4th drive gear year ID SuperNutt · August 27, 2017, 07:14:41 pm Trying to piece together a trans out of a box of parts that I bought. I am not sure how to tell the difference between a 1987 a... 2 Replies · 499 Views Started by SuperNutt	2 Replies 499 Views	August 28, 2017, 06:25:47 am by SuperNutt
Anyone ever got a compression release kit in a 500 Anyone ever got a compression release kit in a 500 Mkbj18 · July 20, 2017, 07:58:16 pm I got a compression release machined into my cylinder curious what the thoughts were 6 Replies · 714 Views Started by Mkbj18	6 Replies 714 Views	July 27, 2017, 01:22:06 pm by Mkbj18
Ran good Bogged down, and now not good? Ran good Bogged down, and now not good? Canada · April 17, 2017, 04:07:35 pm 1987 LT500r was running like a top for many rides, Always started second or third kick Today I was ripping hard was running very... 9 Replies · 808 Views Started by Canada	9 Replies 808 Views	April 22, 2017, 06:44:46 am by Aussiezilla
Coolant problem Coolant problem donfina420 · March 22, 2017, 09:07:20 pm Ok ..so my coolant overflow when i ride it hard spits out all the coolant from radiator. Hose from pump to radiator is pressuri... 3 Replies · 779 Views Started by donfina420	3 Replies 779 Views	March 24, 2017, 08:03:02 am by MotorGeek - Jerry Hall
Stripped peg holes Stripped peg holes Bodhizafa1987 · August 29, 2016, 05:47:21 pm Got this Zilla an peg holes were stripped out plus needed to put a skid plate on it so I used a smaller diameter higher grade lo... 2 Replies · 1218 Views Started by Bodhizafa1987	2 Replies 1218 Views	March 21, 2017, 08:45:45 pm by Mitch Keller
Engine services Engine services jrace53 · February 20, 2017, 05:04:56 pm Looking for feedback on having some work done. I have 2 zillas to build, both need crank rebuilds and head studs done. Want to h... 4 Replies · 998 Views Started by jrace53	4 Replies 998 Views	February 21, 2017, 08:42:06 am by Q2W
Billet Thrust Washers Billet Thrust Washers Jvandiver518 · February 03, 2017, 09:13:20 am Who makes the billet thrust washers and when will they be available in the store again? I am looking for a set and I know a coup... 3 Replies · 911 Views Started by Jvandiver518	3 Replies 911 Views	February 07, 2017, 10:36:55 am by Q2W
88 lt500 running rough at high rpm 88 lt500 running rough at high rpm 2stroke01 · January 02, 2017, 09:22:15 am Hello, I have an 88 quadzilla that is having issues right as it starts getting into the power band. As soon as the front end sta... 3 Replies · 1459 Views Started by 2stroke01	3 Replies 1459 Views	January 04, 2017, 09:11:43 am by Q2W
ZILLA OEM ENGINE FLAWS & WHAT TO LOOK FOR WHEN BUYING ZILLA OEM ENGINE FLAWS & WHAT TO LOOK FOR WHEN BUYING All American · November 28, 2016, 07:03:31 am The title pretty much says it. What are the flaws with a stock zilla motor, what are the corrections for them...prices??? and ... 9 Replies · 1908 Views Started by All American	9 Replies 1908 Views	December 13, 2016, 06:43:55 pm by Rainman56
Throw away motor? Throw away motor? Deesh86 · October 13, 2016, 05:06:11 pm I just picked up an 87 lt500r knowing it was a project bike and needed work...... however this I don't know what to do about. H... 9 Replies · 1965 Views Started by Deesh86	9 Replies 1965 Views	November 02, 2016, 11:52:38 pm by Glamisrider
New water pump still leaking New water pump still leaking Canada · September 16, 2016, 07:18:29 pm Hi, my new water pump is all new I bought the OEM kit off ebay from honda east. So I replaced the bearing and shaft, the impelle... 4 Replies · 1675 Views Started by Canada	4 Replies 1675 Views	September 21, 2016, 03:16:27 pm by Canada
LT500 cases at motorgeek LT500 cases at motorgeek ktmrace · September 08, 2016, 12:18:38 pm Hi, I have sent an email last Thursday or Friday and a PM on Tuesday to motorgeek about my LT500 cases that he has (main crank b... 9 Replies · 2117 Views Started by ktmrace	9 Replies 2117 Views	September 15, 2016, 09:36:10 am by Hotbutta
Stock carb works awesum Stock carb works awesum Bodhizafa1987 · August 29, 2016, 06:06:09 pm After getting the internal parts correct in this 88-89 model stock carb 43B10 an taking it apart an cleaning & adjusting everyth... 1 Replies · 1127 Views Started by Bodhizafa1987	1 Replies 1127 Views	September 02, 2016, 06:42:06 am by 4-tracker
Decompression switch Decompression switch Bodhizafa1987 · August 29, 2016, 05:33:33 pm Was watching YouTube a guy with a Atc500r put a decompression switch on the top left side of cylinder head not in the cylinder i... 4 Replies · 1466 Views Started by Bodhizafa1987	4 Replies 1466 Views	August 31, 2016, 08:37:00 am by Nekrofilliak