03-11-2022, 05:41 PM | #1 |
Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
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TT250 Head Gasket Question
Does anyone know if the tt250 gasket uses the oil o-ring?
I do not see it on the CSC website and looking at the gasket I dont think it is supposed to be there. T.I.A. Billy
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2021 RPS Hawk "IKEA" (Came in a box with no instructions) 110 main jet 1washer,2.5 sprockets and the cat fell off( with a little help) 1984 Honda V65 Magna "Daddy's Little Monster" To whoever stole my anti-depressants. I Hope Your Happy ! |
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03-11-2022, 07:48 PM | #2 |
Join Date: Oct 2020
Location: Flower Mound Texas
Posts: 904
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My tbr7 had one and I reused it when I put the thinner csc gasket on, but I don't think it's needed and I don't think the csc's use them.
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2021 Tao Tbr7 - "Lucille" Mods so far- Brozz swingarm, 21" front rim (Bridgestone Tw302 rear/Dunlop D606 front tires), Digital gauge cluster, pz30b pumper carb, after market hand guards, aftermarket brake and clutch levers, round fold away mirrors, Fly handlebars shortened slightly, 13t front sprocket 2009 Q-link Legacy 250 1982 Suzuki GS1100ES - "Jolene" |
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03-11-2022, 09:11 PM | #4 |
Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
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thanks guys, just trying to make sure I wasn't going to have to go back and pull it out.
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2021 RPS Hawk "IKEA" (Came in a box with no instructions) 110 main jet 1washer,2.5 sprockets and the cat fell off( with a little help) 1984 Honda V65 Magna "Daddy's Little Monster" To whoever stole my anti-depressants. I Hope Your Happy ! |
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03-14-2022, 09:53 AM | #5 | ||
Join Date: Aug 2019
Location: Bay City, MI
Posts: 398
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Quote:
Quote:
I think you can go either way with it and be fine. |
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03-14-2022, 12:50 PM | #6 |
Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
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Got the bike back together. Put the o ring back but i really don't think it matters after all. First try at porting and polish in 35 years was a success!! Previous top speed was 64, got to 73 on the test ride. Form an idle in first to w.o.t. it will now lift the front wheel a few inches with 2.66 sprockets. It wouldn't do that before !! Thanks for all the input guys. I'd be lost in Hong Chong without this forum.
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2021 RPS Hawk "IKEA" (Came in a box with no instructions) 110 main jet 1washer,2.5 sprockets and the cat fell off( with a little help) 1984 Honda V65 Magna "Daddy's Little Monster" To whoever stole my anti-depressants. I Hope Your Happy ! Last edited by Ol,fart; 03-14-2022 at 12:52 PM. Reason: Typo |
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03-14-2022, 01:48 PM | #7 |
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Join Date: Oct 2016
Location: Houma, La.
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Awesome! welcome to the Port & Polish club. No all you need is a 4* timing key.
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2024 Linhai 300 ATV 4x4 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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03-14-2022, 02:49 PM | #8 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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Yeah, the O ring is actually not needed, but it also doesn't hurt if you do put it in.
I keep telling the young guys on the Facebook group that the 3 biggest power gains to be had from these CG engines is the exhaust, head, and cam. If they want more get up to their go, that is where the focus should be. Now you too are a believer lol.
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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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03-14-2022, 03:21 PM | #9 |
Join Date: Jan 2022
Location: Gatesville Texas
Posts: 161
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Ive already got the 4degree key. But was waiting to see if I had detonation problems with 020 shaved and tt gasket
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2021 RPS Hawk "IKEA" (Came in a box with no instructions) 110 main jet 1washer,2.5 sprockets and the cat fell off( with a little help) 1984 Honda V65 Magna "Daddy's Little Monster" To whoever stole my anti-depressants. I Hope Your Happy ! |
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03-14-2022, 05:21 PM | #10 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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You're fine. I have .039" shaved off the head, the TT gasket, and the advance key. I did remove some material from the chamber to smooth things out so that will reduce it back some, and I have a cam with more overlap that lowers my dynamic compression, but my static is still 10.3:1 Never had an issue, but I also run 91.
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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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03-15-2022, 12:28 PM | #11 |
Join Date: Mar 2021
Location: New Hampshire
Posts: 242
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I also did not use the O-ring on my hawk with the thinner gasket, I did however spray the gasket with Copper spray.
Just to add my $.02 :-)
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03-17-2022, 10:33 AM | #12 | |
Join Date: Aug 2019
Location: Bay City, MI
Posts: 398
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Quote:
It's almost not worth our time anymore... feels like banging your head against a wall would be more productive. -Jason |
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03-17-2022, 02:57 PM | #13 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,100
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It's always been a bit ridiculous, but as vehicle prices soared and now gas prices these little bikes are way more appealing so more young people who are tight on funds have found them, which is a good thing, but also means there are way more "experts" out there. Everybody knows everything when they are 19 years old lol.
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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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