LT500R - Engine

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Cometic P/N# for the AFM gaskets Cometic P/N# for the AFM gaskets Mitch Keller · September 27, 2012, 02:23:14 pm Cometic P/N# for the AFM gaskets for the LT500 87-90 Thickness Compression: .018" WILL COMPRESS TO ABOUT .012" .032" WILL COMPR... 18 Replies · 22922 Views Started by Mitch Keller	18 Replies 22922 Views	August 06, 2023, 02:51:10 pm by ThrustWasher81
Wiseco piston to Cylinder Clearance Question Wiseco piston to Cylinder Clearance Question Chuck D · March 26, 2013, 08:29:43 pm So manual says servic limit is .0047 and spec is .003". So according to the manual .005" is wore out. Wiseco says .0037" piston ... 18 Replies · 8699 Views Started by Chuck D	18 Replies 8699 Views	July 27, 2021, 12:56:42 pm by Rainman56
Engine changes '87-'90 Engine changes '87-'90 QuadDave · October 04, 2012, 08:48:07 am Had this saved from another site. I'm not taking credit, but figured it was good info to share.Here are all of the engine relate... 13 Replies · 5298 Views Started by QuadDave	13 Replies 5298 Views	May 26, 2017, 09:18:07 am by Q2W
Measuring Air/Fuel Ratio for Tuning Measuring Air/Fuel Ratio for Tuning Rensch26 · November 03, 2016, 08:03:13 pm Hey everyone,I was just wondering if anyone on the forum had ever tried to measure the air/fuel ratio with a lambda sensor insta... 12 Replies · 4556 Views Started by Rensch26	12 Replies 4556 Views	April 23, 2017, 12:47:48 am by MotorGeek - Jerry Hall
Gear maker Gear maker B_Fuss · March 29, 2013, 10:53:00 pm Someone asked about custom gears. How about this place. http://www.novaracing.co.uk/manufacturematerials.htm 19 Replies · 7126 Views Started by B_Fuss	19 Replies 7126 Views	March 14, 2016, 02:45:16 am by All American
CARB JETTING SHEET PROTOTYPE CARB JETTING SHEET PROTOTYPE Mitch Keller · October 20, 2012, 05:13:10 pm Playing around to see if I can make a Carb Jetting Sheet / Ruff Draft YEAR /MODEL 87 LT500 MAKE/CARB KEIHIN PWK SIZ... 18 Replies · 7775 Views Started by Mitch Keller	18 Replies 7775 Views	March 05, 2016, 08:34:45 am by Rainman56
Changing 87 trans to 88-90 trans Changing 87 trans to 88-90 trans Glamisrider · September 23, 2012, 08:11:23 pm For those of you who want to know how to make your 87 trans in to a 88-90 trans with the closer ratio 3rd & 4th.Here is what you... 13 Replies · 4732 Views Started by Glamisrider	13 Replies 4732 Views	January 20, 2016, 11:48:53 am by Ywnmn
Lt500R Engine bearing cross reference chart. Lt500R Engine bearing cross reference chart. BadMoonRacing500 · March 25, 2013, 04:17:36 pm Lt500R bottom end bearing and seal chart with prices and Koyo and NTN crossover part #'s Also 87 use's a different counter balan... 6 Replies · 3628 Views Started by BadMoonRacing500	6 Replies 3628 Views	August 24, 2015, 05:55:09 pm by Ywnmn
How to do a plug chop How to do a plug chop Q2W · March 27, 2015, 09:07:17 am http://kawtriple.com/mraxl/carb/plugchop.htmI'm copying all information from the link above just incase the link is ever 404 or ... 2 Replies · 2995 Views Started by Q2W	2 Replies 2995 Views	April 19, 2015, 04:03:15 pm by MotorGeek - Jerry Hall
BIG small small BIG BIG small small BIG Hotbutta · November 09, 2012, 05:04:36 pm Can someone explain why a BIG intake, BIG carb, BIG V2 reed engine would run a smaller main jet than an oppositely setup motor? ... 22 Replies · 8129 Views Started by Hotbutta	22 Replies 8129 Views	November 22, 2012, 06:35:17 am by Toydoc
LT500 87-90 Moto Tassinari V Force 2 Reeds P/N# Info LT500 87-90 Moto Tassinari V Force 2 Reeds P/N# Info Mitch Keller · September 28, 2012, 12:53:29 pm Moto Tassinari P/N# for the reeds as follows:88-90 V-2 Assembly and Reed P/N#V2M110 some still available though them and HPR88... 9 Replies · 5117 Views Started by Mitch Keller	9 Replies 5117 Views	October 29, 2012, 02:52:26 pm by JTMoney714
LT500 Bearing Cross Reference Chart LT500 Bearing Cross Reference Chart Mitch Keller · October 01, 2012, 05:55:02 pm LT500 Bearing Cross Reference Chart 1 Replies · 4362 Views Started by Mitch Keller	1 Replies 4362 Views	October 05, 2012, 12:05:25 am by Dunezilla
88 LT500R not starting 88 LT500R not starting CP43 · May 14, 2024, 01:13:51 pm Picked up a couple of months ago, knew it wasn't running. Here's what I've done:-taken carb apart and cleaned, new pilot and ma... 2 Replies · 5876 Views Started by CP43	2 Replies 5876 Views	November 26, 2024, 11:22:03 am by Rainman56
Zilla not running clean and milky oil Zilla not running clean and milky oil DP157 · January 05, 2024, 06:42:42 pm Hi Guys - new to the board. I have a 1990 LT 500 and it is stock as far as I know. I bought it some time ago and the PO claime... 0 Replies · 1824 Views Started by DP157	0 Replies 1824 Views	January 05, 2024, 06:42:42 pm by DP157
LT500R 88+ carburetor slide LT500R 88+ carburetor slide Rainman56 · May 07, 2023, 01:52:02 pm Anyone know where to purchase a new Carburetor slide for The stock 88+ TM38 carburetors???Are they available from Mikuni?Seems t... 4 Replies · 14645 Views Started by Rainman56	4 Replies 14645 Views	September 05, 2023, 05:37:31 am by JDaivs1
Problems Starting and idle Quadzilla Problems Starting and idle Quadzilla My90quadzilla · May 11, 2018, 02:36:15 pm My90QuadzillaonlineSuzuki ATVerJoin: about 24 hours agoPosts: 1Oregonabout 23 hours ago · #1Only starts with throttle wide open.... 5 Replies · 15820 Views Started by My90quadzilla	5 Replies 15820 Views	August 17, 2023, 07:58:44 am by Gaz
Squish band question Squish band question Rossy · November 21, 2017, 03:20:16 am Just wondering if I could get any help. I opened my engine up for the first time after having the head re-shaped by a reputable ... 6 Replies · 16124 Views Started by Rossy	6 Replies 16124 Views	July 27, 2023, 07:09:31 am by Gaz
Piston dome Piston dome Stpltn250r · June 26, 2013, 06:49:45 pm Someone please tell me if I did this correctly. I dont have any jigs nor do I work in or around a machine shop. I went to measur... 8 Replies · 16324 Views Started by Stpltn250r	8 Replies 16324 Views	July 27, 2023, 07:04:14 am by Gaz
Shift Lever 87 quadzilla Shift Lever 87 quadzilla Quadzilla_Chris · September 29, 2022, 06:35:55 am Just recently had the motor rebuilt on my 87 zilla. When I arrived at my riding spot, the shift lever was gone. These don't ju... 1 Replies · 1892 Views Started by Quadzilla_Chris	1 Replies 1892 Views	October 05, 2022, 07:05:12 am by Q2W
Coolhead/Powerhead for sale???(87) Coolhead/Powerhead for sale???(87) ImNimrodUS · January 03, 2022, 04:53:09 pm Does anyone have a coolhead/powerhead they're willing to sell for an 87 LT500R? Dome size doesn't matter as I will be running vp... 0 Replies · 1133 Views Started by ImNimrodUS	0 Replies 1133 Views	January 03, 2022, 04:53:09 pm by ImNimrodUS
1989 LT 500 sluggish but clears out on top end 1989 LT 500 sluggish but clears out on top end nathangaskin · November 10, 2021, 08:05:38 am My 1989 quadzilla starts great, has good compression, new dg exhaust system, but it is sluggish in the lower gears and tries to ... 5 Replies · 1941 Views Started by nathangaskin	5 Replies 1941 Views	November 17, 2021, 01:27:01 pm by MD2smoker
Mikuni carburetor rebuild kit Mikuni carburetor rebuild kit Brad28 · April 03, 2021, 08:42:54 pm Does anyone have any good information or links they can send me for a complete carburetor rebuild kit for my 1990 Quadracer LT50... 1 Replies · 1406 Views Started by Brad28	1 Replies 1406 Views	April 09, 2021, 06:45:39 am by Q2W
Mikuni carburetor rebuild kit Mikuni carburetor rebuild kit Brad28 · April 03, 2021, 08:45:07 pm Does anyone have any good information or links they can send me for a complete carburetor rebuild kit for my 1990 Quadracer LT50... 1 Replies · 1357 Views Started by Brad28	1 Replies 1357 Views	April 08, 2021, 07:23:28 am by Rainman56
need stock or aftermarket intake pipe! need stock or aftermarket intake pipe! Holeshot 500 · February 08, 2021, 05:53:17 pm Hi! Newbie here, had lots of LTs in the past; just got an original owner, all stock 500.I'd like to find a stock intake pipe (fr... 2 Replies · 1688 Views Started by Holeshot 500	2 Replies 1688 Views	March 03, 2021, 02:25:01 am by JDaivs1
Exhaust Silencer Exhaust Silencer Bullock1 · May 26, 2020, 12:49:13 pm Hey all, been a few years since I have posted which I feel is a good thing, it means I haven't had any issue's with my Zilla LOL... 3 Replies · 2553 Views Started by Bullock1	3 Replies 2553 Views	January 20, 2021, 12:25:42 pm by Bullock1
leakdown test-can hear air thru crankcase vent hose leakdown test-can hear air thru crankcase vent hose bigbird337 · January 02, 2021, 03:39:37 pm So I performed a leak down test on my 87 lt500r. I sprayed the entire outside of the motor no leaks. I can hear air thru the cra... 1 Replies · 2095 Views Started by bigbird337	1 Replies 2095 Views	January 03, 2021, 03:51:19 pm by MotorGeek - Jerry Hall
Help!! Help!! LtLT · July 24, 2020, 08:22:41 am I need a water pump case and water pump connector Also need exhaust valve spring part # 09444-15004 Can anyone help me out? 1 Replies · 1474 Views Started by LtLT	1 Replies 1474 Views	August 24, 2020, 07:54:07 am by Bullock1
clutch still transmitting power when pulled in clutch still transmitting power when pulled in 88LT500 · April 26, 2020, 04:58:19 am Hey guys, my clutch wont disengage enough when pulled in. I have read the previous posts about the .020 shim and here is where ... 8 Replies · 2219 Views Started by 88LT500	8 Replies 2219 Views	June 24, 2020, 05:40:31 pm by BadMoonRacing500
Short body keihin info? Short body keihin info? Andys92 · April 15, 2020, 04:23:59 am Anyone used a keihin 38mm short body carb on their 500.Just wondering if anyone has any comparisons between short body and norma... 0 Replies · 1132 Views Started by Andys92	0 Replies 1132 Views	April 15, 2020, 04:23:59 am by Andys92
Flywheel weight before and after lightening & other questions Flywheel weight before and after lightening & other questions Rainman56 · October 27, 2019, 09:17:02 am Just curious how much weight is removed when lightening the stock flywheels on the 500 &250's..........I've run both on a 500 an... 7 Replies · 2285 Views Started by Rainman56	7 Replies 2285 Views	December 15, 2019, 03:07:15 pm by GrkGuy
LT500R Primary Drive gear nut thread size??? LT500R Primary Drive gear nut thread size??? Rainman56 · November 18, 2019, 08:37:17 am Looking to find the thread size of the nut that threads on the crankshaft on the clutch cover side...It's the nut that holds the... 2 Replies · 1991 Views Started by Rainman56	2 Replies 1991 Views	November 30, 2019, 05:02:29 am by Rainman56
bouncing before returning to idle. bouncing before returning to idle. bigbird337 · July 31, 2018, 12:08:04 pm I was out this weekend and my quad idle would bounce up and down for several seconds before returning to normal idle after windi... 5 Replies · 3309 Views Started by bigbird337	5 Replies 3309 Views	September 03, 2019, 12:05:57 pm by MotorGeek - Jerry Hall
What caused this damage? What caused this damage? bigbird337 · July 05, 2019, 06:02:40 pm Can anyone tell me what would have caused this. The top end and piston have maybe 4 hrs on it and it just quit. When i pulled th... 1 Replies · 5784 Views Started by bigbird337	1 Replies 5784 Views	July 08, 2019, 11:10:11 am by Motoman991
Marks on piston Marks on piston bigbird337 · July 05, 2019, 06:00:10 pm Can someone tell me what would have caused this. I just rebuilt the top end and put new piston in. It has about 4 hrs on it. [ ... 1 Replies · 1688 Views Started by bigbird337	1 Replies 1688 Views	July 08, 2019, 08:20:49 am by Q2W
Stock mikuni tm38 air screw Stock mikuni tm38 air screw bigbird337 · April 11, 2019, 01:29:39 pm Can someone tell me if the stock air screw should have an oring and washer under the spring. ? 1 Replies · 1808 Views Started by bigbird337	1 Replies 1808 Views	April 22, 2019, 11:55:22 am by Q2W