Choke flap stuck in engine

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12 Aug 2020 18:54 - 12 Aug 2020 18:55 #832748 by loudhvx
Replied by loudhvx on topic Choke flap stuck in engine
If it was me, I'd slap it back together and run it, but I have a few spare heads laying around.
Last edit: 12 Aug 2020 18:55 by loudhvx.

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12 Aug 2020 19:10 - 12 Aug 2020 19:12 #832754 by Ant_5445
Replied by Ant_5445 on topic Choke flap stuck in engine
Do you think those gouges+scratches would be an issue though? Fingernail slightly catches the longest one..the other ones seem to be surface scratches/not deep at all.

'99 Zrx 1100
'81 Gpz 550
Last edit: 12 Aug 2020 19:12 by Ant_5445.

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04 Sep 2020 06:02 - 04 Sep 2020 06:03 #834356 by Ant_5445
Replied by Ant_5445 on topic Choke flap stuck in engine
Well, got everything put back together...now running into an issue with the dreaded timing. Set the mark to T so that both 1 and 4 are at tdc, counted the pins 1 and in between 43 and 44, installed cams, evenly bolted everything down, put top cover on, put chain tensioner in, rotated by hand and at some point i meet some resistance and it wont rotate anymore. Any ideas? Is the chain not taught enough before i put the tensioner in? I don't believe valves are hitting since i put the lobes the exact way they're supposed to be facing..

'99 Zrx 1100
'81 Gpz 550
Last edit: 04 Sep 2020 06:03 by Ant_5445.

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04 Sep 2020 07:52 #834364 by ghostdive
Replied by ghostdive on topic Choke flap stuck in engine
Just making sure, are your spark plugs out? If not, it's probably just compression building. If they are, I'd pull the valve cover and check the clearances, maybe one's super tight. If it's not that, I'd double check the timing chain spacing - I don't know much about 550s, so here's a link to check out: gpzweb.s3-website-us-east-1.amazonaws.co...KZZXZR550500400.html

1982 KZ750 Spectre - 6 speed swap, BS34s, 18" rear wheel

2001 ZX-6R

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04 Sep 2020 08:13 #834365 by TexasKZ
Replied by TexasKZ on topic Choke flap stuck in engine
Dis you read this whole page, especially the part near the bottom about the shop manual errors concerning cam timing?

s3.amazonaws.com/gpzweb/CamsKZZXZR550500...KZZXZR550500400.html

1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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04 Sep 2020 12:52 #834373 by loudhvx
Replied by loudhvx on topic Choke flap stuck in engine
Is there even the remotest chance that something fell down the camchain tunnel? I ask because this has happened in the past .

Are all of the valve-cover cam-end plugs accounted for? Sometimes they stick to the valve cover and fall into the motor during valve-cover removal.

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04 Sep 2020 13:09 #834375 by Ant_5445
Replied by Ant_5445 on topic Choke flap stuck in engine
Figured it out, chain was buckling due to it not being taught. Got it all together started it up and I still have a ticking noise coming from the top end only this time it’s on the right side instead of cylinder 1. I’m at a loss right now on wtf is going on. Think I’ll just bring it to my mechanic and have him deal with this headache

'99 Zrx 1100
'81 Gpz 550

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04 Sep 2020 13:41 #834378 by loudhvx
Replied by loudhvx on topic Choke flap stuck in engine
Yes, you shouldn't really rotate the motor without proper camchain tension, as it can also jump teeth and alter timing.

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04 Sep 2020 15:25 #834384 by Ant_5445
Replied by Ant_5445 on topic Choke flap stuck in engine
Thanks for the help, I’ll update soon

'99 Zrx 1100
'81 Gpz 550

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14 Sep 2020 16:28 - 14 Sep 2020 16:33 #835029 by Ant_5445
Replied by Ant_5445 on topic Choke flap stuck in engine
Update: she’s finally back home and running good. Mechanic said after checking it all over I mixed up the spark plug wires, and something with the carb was why it wasn’t idling after I put it all back together. Said I did a pretty good job for rebuilding it with no experience. Ticking noise is still there but I’m pretty sure it’s just a shim out of spec, I’ll save that job for winter lol but other than that she rides good and at least I’ll have some riding weather until the snow starts. Thank you everyone who’s been helpful, really appreciate you guys. For being a young guy with a classic bike it’s really rewarding working on it.

'99 Zrx 1100
'81 Gpz 550
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Last edit: 14 Sep 2020 16:33 by Ant_5445.

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14 Sep 2020 16:36 #835030 by loudhvx
Replied by loudhvx on topic Choke flap stuck in engine
Nice job! I have a few motors that need rebuilding if you have some spare time ;)

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16 Sep 2020 03:12 #835148 by Kidkawie
Replied by Kidkawie on topic Choke flap stuck in engine
Ticking noise can be a loose/leaking exhaust flange.

1975 Z1 900
1994 KX250 Supermoto
2004 KX125

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