82 kz1000p wont start after top end rebuild

  • jswag5
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82 kz1000p wont start after top end rebuild

22 Mar 2009 14:19
#274273
hello everyone, im new on here and new to kz's, but not new to bikes, ive owned several and do most if not all of my own work, but for the life of me i cant get my new kz1000 started

Ok heres the background, i was replacing some cracked intake boots and sheared of a bolt, as i was trying to removed the sheared off bolt i cracked the intake, so i found another head and did a full top end rebuild on the bike, but for the life of me i cant get the thing to start.

As far as everything ive read my timing is ok, i set the "T" mark on the crank up towards the mark, and put the exaust cam toward the front of the engine level with the gasket surface, counted 44 pins starting with the pin right after the exhaust mark to the intake mark, turn the engine and it is free of any contact. i crank the bike and it puffs out the exhaust and pulled at the intake, and it chugs like it wants to start, but only one of my exhaust pipes is getting warm, theres good compression at all cylinders, good spark at all plugs, fresh plug wired and the wiredgeorge coil repower mod is completed. ive been slowly adjusting the crank to cam timing a tooth at a time, still cant get any better starting.

Ive been working on this project for 2 weeks, i have a clymer manual on the way but have not received it yet, and am missing a lot of excellent riding weather.

Sorry about the long write up, but i want you all to know what ive tried, any more suggestions would be greatly appreciated.

Thanks in advance, John.
:angry:
82 kz1000p
83 yammie xj750mk bobber
78 honda cx500 standard cafe
RECENT 81 honda goldwing(barn fresh with 15000 on the clock)
if you cant fix it with a hammer and duct tape, get a bigger hammer and more duct tape!!

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  • Randall the Vandal
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 14:41
#274275
Are you running a stock air box or pods? You may just not be getting fuel to the cylinders. Try covering 2 or 3 of the carbs with your forearm while turning it over and see if it picks up the fuel to fire it off. If your gettin fire and you think the timing is good, it may not be getting fuel.
1976 kz900 ltd
1981 csr1000
1982 kz1100
2007 klr650

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  • MFolks
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 14:41
#274276
Are you getting good fuel flow to all four carbs? Could the floats be sticking closed? Drop the bowls and check fuel flow. Does the tank have a vacuum petcock and is it set in prime or pri? If so, this will allow gas to the carbs.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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  • mark1122
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 14:45
#274277
Well, Firstly, wellcome to the world of KZ's.
At first glance i'd say its fuel. only because u said only 1 pipe gets hot and u have spark on all4. the other thing would be timing. are all 4 plugs wet with fuel?
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

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~ (k) / (z)

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  • jswag5
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 15:03
#274285
ok, it is getting fuel to all 4 cylinders, they are all slightly wet with fuel, i am running stock air box with a k&n air filter, ive tried starting fluid and it acts the same. just advanced the cams one more tooth, gunna give it go in a few minutes once fuel fills back up the carbs, also i tore down the carbs and cleaned them as well as bench synced, yes it has vacuum petcock and it is set on prime, fuel level in the bowls is good.
like i said im not a novice when it comes to bikes, its just this bike i havent received a book yet to help with the troubleshooting, im going off of my knowledge of yamaha engines and what people have told me and what i can find off the internet.
82 kz1000p
83 yammie xj750mk bobber
78 honda cx500 standard cafe
RECENT 81 honda goldwing(barn fresh with 15000 on the clock)
if you cant fix it with a hammer and duct tape, get a bigger hammer and more duct tape!!

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  • Randall the Vandal
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 15:14
#274288
reverse the wiring to coils, maybe not firing at the right time???
1976 kz900 ltd
1981 csr1000
1982 kz1100
2007 klr650

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  • irishwill
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 15:19
#274291
do you have the ability to do a leak down test....if so it will tell you right away if you have bent a valve....I have done this and it sucks...It will also eliminate a bent valve

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  • jswag5
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 15:47
#274311
i have tried the coil wire switch, and i dont have the ability to do a leak down test.
82 kz1000p
83 yammie xj750mk bobber
78 honda cx500 standard cafe
RECENT 81 honda goldwing(barn fresh with 15000 on the clock)
if you cant fix it with a hammer and duct tape, get a bigger hammer and more duct tape!!

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  • Randall the Vandal
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 15:56
#274315
are you getting a good hot spark? if so, then i am banking on the timing issue. if you are married or in a relationship, that also tends to cloud your mind or distract you from the important things in life.
1976 kz900 ltd
1981 csr1000
1982 kz1100
2007 klr650

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  • jswag5
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 16:10
#274320
yeah, im getting good spark, maybe the 44 pins to the intake mark is wrong, ive heard of a few different numbers, 40 and 43, but 44 puts the intake pointer towards the intake.
82 kz1000p
83 yammie xj750mk bobber
78 honda cx500 standard cafe
RECENT 81 honda goldwing(barn fresh with 15000 on the clock)
if you cant fix it with a hammer and duct tape, get a bigger hammer and more duct tape!!

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  • irishwill
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 16:15
#274324
are you playing around with the amount of pins between marks?
if you have been and have tried to start it I would bet you have bent a valve or two

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  • Randall the Vandal
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Re: 82 kz1000p wont start after top end rebuild

22 Mar 2009 16:25
#274330
damn, bent valve(s) would really suck ass for that guy about now! good luck with it, i gotta take the kids back home to mexico...i mean houston. hope to hear it was something stupid we all overlooked, so let us know.
1976 kz900 ltd
1981 csr1000
1982 kz1100
2007 klr650

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