03-07-2019, 11:35 AM | #16 | |
Join Date: Feb 2019
Posts: 38
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Quote:
1. Stories like the one guy who had a smashed spark plug. Even he asked if it has due to the valve job he did. I understand people here felt it was unrelated, but it can be worrisome for some folks. 2. I'm guessing that most of us have not gone to MMI. Many of us like to tinker, but maybe some of us are new to opening an engine. |
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03-07-2019, 11:47 AM | #17 | |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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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 |
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03-07-2019, 01:14 PM | #18 | |
Join Date: Nov 2018
Location: Stockport, Oh.
Posts: 1,442
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03-07-2019, 02:09 PM | #19 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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UPDATE! so last night we had idle. let it cool over night. now i tackled the valve clearance. got it to fire up a few times but now i cant idle again. i think i have exhausted the stater/battery, so ive been kicking starting it... so i was messing with getting it to idle with the idle set screw and it died, so i kick it again and this time IT KICKED BACK! is this normal? i hope i didnt do anything wrong
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03-07-2019, 03:05 PM | #20 |
Join Date: Aug 2018
Location: Ohio
Posts: 131
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Did you make sure to adjust the valves at Top Dead Center?
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Hawk 250 Lithium Battery, Mikuni Carb 110 main jet, Bark Busters with Mirrors, Extended Mixture Screw, 428 O-ring Chain, 17-15/40 sprockets, Digital Cluster, Cycra YZ250F Skid Plate, Oil Cooler |
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03-07-2019, 05:14 PM | #22 |
Join Date: Aug 2018
Location: Ohio
Posts: 131
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Cool. Just a small tip. Take off the spark plug and put your finger over the hole. If you feel air pushing out, that means you are on the compression stroke.
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Hawk 250 Lithium Battery, Mikuni Carb 110 main jet, Bark Busters with Mirrors, Extended Mixture Screw, 428 O-ring Chain, 17-15/40 sprockets, Digital Cluster, Cycra YZ250F Skid Plate, Oil Cooler |
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03-07-2019, 05:30 PM | #23 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Idle speed screw won't help it idle better if the idle mixture is too lean, which it usually is. This is compounded by your now properly set valves. Hard cold starting is a very common issue with the stock carburetor tuning, which is why that was also suggested.
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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 |
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03-08-2019, 09:38 PM | #24 |
Join Date: Feb 2019
Location: Youngstown, OH
Posts: 56
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Thanks to all your help everyone! I now am a very happy individual! All this stressing and overlooking I forgot to keep gas tank full.. as I ripped out the carb many many times I lost quite a bit of fuel. Which lead me to believe I did something wrong when it wouldn't start.. any ways 11 miles in and fun so far! Thanks again!
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03-10-2019, 01:38 PM | #25 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
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03-10-2019, 04:00 PM | #26 |
Join Date: Jul 2017
Location: Montucky
Posts: 209
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I sat my valve lash from the get go, checked and adjusted again at 100 mile, 300, 500 and then I did at 1000. After that I will check it every oilchange or 1000 miles. My runs like a scolded ape, so I must have done sumthin right?
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1983 Honda Xl600R 2016 Ducati Multistrada 1200S DVT |
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03-10-2019, 04:41 PM | #27 |
Join Date: Jun 2016
Location: Myrtle Creek Oregon
Posts: 873
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I’ve gotten to the point that, I can run the engine up to TDC compression stroke, grab the rocker arms on the bike engine and rattle it/them (click, click, click). I can usually tell if it’s too loose. And if it’s too tight, can’t rattle. Just a simple test when fiddling with other parts of the engine. If it feels weird, then pull I out the feeler gauges.
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1988 Kawasaki KLR250 1969 Honda Z50 silver tag 2002 Ford F-350 7.3 diesel 1975 Corvette 2017 Chevy Bolt “Throttle twisting geek” -LFN |
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03-10-2019, 10:20 PM | #28 | |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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Quote:
mm gauges are much smaller and gives a finer increment in testing 0.01mm is less then half a thou which is 0.0127mm So by using mm feeler gauges and using the go n go method your testing to a much smaller tolerance Again my opinion and backed with a theory and some fact Each to their own but that’s the VERY reason I supply mm feeler gauges in my tool set on eBay I see and believe it’s a more accurate way and test with mm feeler gauges |
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03-10-2019, 11:39 PM | #29 |
Join Date: Jun 2016
Location: Myrtle Creek Oregon
Posts: 873
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Another point would be, if you’re going to err, err on the side of too open. So, If you’re using inches (btw, all my feelers have both inches and metric printed on them) or whatever (I had a Russian rifle with Arshin units for trajectory one time. Found out that an Arshin =28 inches, standardized by Peter the Great, but I digress...), then too open is way better than too tight. Rattly tappets, ok. Tight tappets, burnt valves and loss of compression.
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1988 Kawasaki KLR250 1969 Honda Z50 silver tag 2002 Ford F-350 7.3 diesel 1975 Corvette 2017 Chevy Bolt “Throttle twisting geek” -LFN |
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03-11-2019, 01:25 AM | #30 | |
Join Date: Jun 2016
Location: Hell
Posts: 2,408
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Quote:
A little “using brain” shows you it’s within the specs and remember there’s not 1 size but a slight range so let’s say 3 thou plus or minus half a thou this would be like 0.065mm to 0.93mm and using the finer increment mm feeler gauge along with go no go gives you a more accurate setting No more side of too tight or loose as you can self test more accurately |
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