03-12-2019, 01:14 PM | #31 | |
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03-12-2019, 03:39 PM | #32 |
Join Date: Apr 2017
Location: Omaha, NE
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I will expand on what ARH said a little further. Arguing that the metric feeler gauges are more graduated is a moot argument to make. While technically true, the difference is so small that not even most engineers would take it into account unless they were dealing with insanely close tolerances for the most precise work. Plus, it's not hard to find SAE feeler gauges graduated in .0005in increments. The graduation change between .08mm and .07mm vs .003in(.076mm) and a .0025in(.064mm) is quite literally .00011 in. of a difference (.00039in vs. .0005in). Trust me when I tell you that is well within the realm of the same tolerance given the chance for variation in how tightly that gap is set even within the realm of "good" (gauge having a slight resistance). I machine parts for high speed production machines that don't even have tolerances that tight.
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Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 Last edited by Megadan; 03-12-2019 at 04:18 PM. |
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03-12-2019, 08:36 PM | #33 |
Join Date: Jun 2016
Location: Hell
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It is aimed for people to check, see, learn and think to get the end result correct.
It means the average DIY dude can check and have the right tools to do the job. Not to say everyone 'likes" or agrees but you see the system is fool proof. Just like you don't need to set valves at TDC - can be done with 1 valve open and adj the other if you know what you are doing, but for many the long way and the explanation etc makes sure they can get to the end correctly and how they can check they have it correct. hack shortcuts are for experianced people IMO, the long way that shows all theory etc is easier to understand for beginners and that is how you start to learn more |
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03-12-2019, 08:57 PM | #34 | |
Join Date: Apr 2017
Location: Omaha, NE
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What I don't agree with is "hack" methods of setting valves. Can it be done that way? Sure. The reason every manufacturer has their valve clearances set at TDC on the compression stroke is to eliminate any chance of variables. It is the only position in the 2 rotations of the 4 cycle engine that can 100% ensure that the cam lobes for that cylinder is not applying any amount of lift to either valve. It's not about showing theory, it's about known quantities/variables and consistency. If you can't be bothered to take a minute to set the engine to TDC...
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03-12-2019, 09:16 PM | #35 | |
Join Date: Jun 2016
Location: Hell
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So many methods etc but yes the long way the go no go way etc is a clear path to a successful adjustment of valves, see why I suggest it this way? Pointless to go on and on as we are only talking a 1 cyl push rod engine and the long way etc etc works fine and shows and creates a pathway to a job done well. |
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03-13-2019, 01:11 PM | #36 | |
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03-13-2019, 02:28 PM | #37 |
Join Date: Nov 2018
Location: Stockport, Oh.
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I have done 4 and 6 cylinder automotive engines with the screw and locknut and just set as many as possible in one position as long as the cam lobe was pointing away from the follower, then rotate it a little and do the rest. When I first started wrenching on 3 wheelers I didn't even use a feeler gauge, just grabbed it and felt for a slight tap. Not precise but they ran.
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03-13-2019, 03:15 PM | #38 | |
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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03-14-2019, 07:56 AM | #39 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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Hello fellow riders! Yesterday i arrived at the 100 mile mark on the Hawk 250! but at 99.5mi it started making a yucky clicking/rattling/jackhammer sound. I took it home, changed the oil, cleaned filter/screen (no pieces). buttoned her back and started it up. still was making the weird noise. going home on lunch break and setting valve clearance again since im at 100 miles on new bike. any other suggestions of what this might be? i recorded a video but its too big, im working on uploading it.
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03-14-2019, 08:04 AM | #40 |
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Hopefully it just needs a valve adjustment. With too large of a gap those valve can get loud. Those first few hundred miles you will need to adjust them a few time until everything wears and settles in.
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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03-14-2019, 08:06 AM | #41 | |
Join Date: Feb 2019
Location: Youngstown, OH
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This comforts me greatly, ill keep everyone posted and up to date. thanks for the quick response! |
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03-14-2019, 11:40 AM | #42 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,057
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Even adjusted properly these engines are quite clattery once they get hot and the oil thins out. It's just the nature of the valvetrain.
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03-14-2019, 12:28 PM | #43 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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well i adjusted valve lash and started her up. sounded great till it got hot then you hear this nice ticking noise.
runs and rides great just concerned as ive never owned a bike before lol
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03-14-2019, 12:32 PM | #44 |
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Join Date: Oct 2016
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That is normal. It's when you don't hear them ticking it's usually a good time to check them.
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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03-14-2019, 03:52 PM | #45 | |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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awesome! i will stop worrying so much haha thankyou! |
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