Hawk 250 Resource and Information guide. - Page 2

old_airhead · 02-01-2021, 05:24 PM

A data point: the stock rear shock length on my 2020 Hawk DLX is 305mm (somewhere on this web site says the length is 320mm). I replaced it with a 285mm shock and the seat height dropped a little less than 2 inches (unloaded).

JerseyTBR7 · 02-02-2021, 10:56 AM

I have a 290mm on my TBR7. That is about the limit of how short you can go for a passenger weight friendly ride on that bike. If you are 5'4" like she is, this height is workable.

TxTaoRider · 02-02-2021, 11:57 AM

Just remember that with most shocks you lose stroke with going to a shorter shock (not always though). Since it's something like 3:1, if you lose 1/2" stroke you'll lose 1-1/2" of travel. That doesn't sound like much, but on a bike that has maybe 6-1/2" travel it's over 20%. You'll then have to increase the spring rate the same amount to keep get the same bottoming resistance...which gives up some ride quality. Just pointing it out....

idle_purr · 03-03-2021, 07:23 PM

Quote:

Originally Posted by KenTaoyan

Filling the oil up halfway on the site glass then I started the engine and I couldn't see the oil in the site glass. I know the oil gets distributed around the engine. (Upper and Lower) what is the procedure for the oil change? Start it up and let it circulate or just leave it at that? Still a newbie and about to do the full meal deal to get ready for spring.

Check this video out: Motocheez - Hawk 250 RPS Changing the oil.

Krotos1970 · 05-18-2021, 12:33 AM

Anybody use sprockets 14/40 or 15/40, I got an o-ring 428 130 links with 17/45 already installed, I am gonna go back 15 front and put a 40 on the rear which I already have on hand, I was wondering should I buy another shorter chain to experiment this or just cut the one I have and go with 15/40 or 14/40 or 13/40?
Reason is I want a little more torque and a little more stop speed!

**JerryHawk250** · 05-18-2021, 08:07 AM

Quote:

Originally Posted by Krotos1970

Anybody use sprockets 14/40 or 15/40, I got an o-ring 428 130 links with 17/45 already installed, I am gonna go back 15 front and put a 40 on the rear which I already have on hand, I was wondering should I buy another shorter chain to experiment this or just cut the one I have and go with 15/40 or 14/40 or 13/40?
Reason is I want a little more torque and a little more stop speed!

The 15/40 combo is the same ratio as the 17/45. I wouldn't go any smaller than the 15 on the front. Put your 45 back on and try the 15/45 if you want more low end torque. You can't have both speed and torque, You will have to sacrifice one for the other. Personally the 17/45 and 14/40 setup is the sweet spot for these bikes.

wally · 01-27-2022, 02:37 PM

I have had to replace some of the bolts/machine screws (theyshook loose! there's not enough loctite in the world for these bikes...)

So I thought I'd put the size here in case anyone else wants to order them online without going to Home Depot, Lowe's, etc, and coming back empty handed.

For the sides of the headlight enclosure and all the plastic pieces, seems to be:

Screw - M6x20mm Extra Wide Truss Head Phillips Screws - 15mm wide head

Rubber Washer - The closest fit is a 1/4" cushioning washer, metric harder to find as they all seemed to be for sinks or not wide as the original. Which is 6mm ID 17mm OD ~3mm thickness

1/4" 0.25" ID 0.75" OD ~0.12" thick Abrasion-Resistant Cushioning Washer

Washer -M6 6.4mm ID 18mm OD Oversized Washer

Rear Brake Rotor Bolts: M8x24 Honda Rotor bolt with flat head and extended "shank"

https://specbolt.com/honda-rotor-bolt-m8x24/
The shank section is a bit longer than the stock "cheese grade" bolts, but still works perfectly. Also you may have to use a torch to remove the stock ones, mine had red loctite on them.

wally · 01-17-2023, 06:09 PM

There might be a max torque spec for spokes, but really you are using the spokes to "true" the wheel, meaning to make it be perfectly round when viewed rotating from the side, and not have any side to side motion when viewed from the top - not just torquing them to a certain value.

Please watch these two videos.

BriNbigD · 11-16-2023, 05:23 PM

New port changes…

**JerryHawk250** · 12-05-2023, 07:56 AM

Here's a link to OEM parts on Amazon. Will probably be easier than dealing with some of the dealerships direct plus have Amazon satisfaction guarantee if somethings goes wrong. https://amzn.to/41aWaYU

Megadan · 05-10-2024, 01:34 AM

It should go without saying, but this entire resource guide was written when there was no DLX Hawk. Thus, things like the front axle, wheel bearings, forks, etc. are all going to be different.

If somebody wants to compile a list of DLX specific parts and information, hit me up and I can add a whole DLX specific section to help with those differences.

02-02-2021, 11:57 AM	#3
TxTaoRider Join Date: Oct 2020 Location: Flower Mound Texas Posts: 904	Just remember that with most shocks you lose stroke with going to a shorter shock (not always though). Since it's something like 3:1, if you lose 1/2" stroke you'll lose 1-1/2" of travel. That doesn't sound like much, but on a bike that has maybe 6-1/2" travel it's over 20%. You'll then have to increase the spring rate the same amount to keep get the same bottoming resistance...which gives up some ride quality. Just pointing it out.... __________________ 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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01-27-2022, 02:37 PM	#7
wally Join Date: Nov 2021 Posts: 45	I have had to replace some of the bolts/machine screws (theyshook loose! there's not enough loctite in the world for these bikes...) So I thought I'd put the size here in case anyone else wants to order them online without going to Home Depot, Lowe's, etc, and coming back empty handed. For the sides of the headlight enclosure and all the plastic pieces, seems to be: Screw - M6x20mm Extra Wide Truss Head Phillips Screws - 15mm wide head Rubber Washer - The closest fit is a 1/4" cushioning washer, metric harder to find as they all seemed to be for sinks or not wide as the original. Which is 6mm ID 17mm OD ~3mm thickness 1/4" 0.25" ID 0.75" OD ~0.12" thick Abrasion-Resistant Cushioning Washer Washer -M6 6.4mm ID 18mm OD Oversized Washer Rear Brake Rotor Bolts: M8x24 Honda Rotor bolt with flat head and extended "shank" https://specbolt.com/honda-rotor-bolt-m8x24/ The shank section is a bit longer than the stock "cheese grade" bolts, but still works perfectly. Also you may have to use a torch to remove the stock ones, mine had red loctite on them. Last edited by wally; 04-20-2022 at 02:17 PM. Reason: added info
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11-16-2023, 05:23 PM	#9
BriNbigD Join Date: Oct 2023 Location: DFW Posts: 64	2023 223cc engine (RPS Hawk DLX) New port changes… Attached Thumbnails __________________ DFW HMCM(SW)[Ret] 2020 FLHTK 2023 EX400G Ninja 400 2023 Hawk DLX
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12-05-2023, 07:56 AM	#10
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,554	Here's a link to OEM parts on Amazon. Will probably be easier than dealing with some of the dealerships direct plus have Amazon satisfaction guarantee if somethings goes wrong. https://amzn.to/41aWaYU __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 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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05-10-2024, 01:34 AM	#11
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 7,990	It should go without saying, but this entire resource guide was written when there was no DLX Hawk. Thus, things like the front axle, wheel bearings, forks, etc. are all going to be different. If somebody wants to compile a list of DLX specific parts and information, hit me up and I can add a whole DLX specific section to help with those differences. __________________ 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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02-01-2021, 05:24 PM	#1
old_airhead Join Date: Nov 2020 Location: Bloomington, IN Posts: 56	A data point: the stock rear shock length on my 2020 Hawk DLX is 305mm (somewhere on this web site says the length is 320mm). I replaced it with a 285mm shock and the seat height dropped a little less than 2 inches (unloaded).
	0

02-02-2021, 10:56 AM	#2
JerseyTBR7 Join Date: Oct 2020 Posts: 130	I have a 290mm on my TBR7. That is about the limit of how short you can go for a passenger weight friendly ride on that bike. If you are 5'4" like she is, this height is workable.
	0

05-18-2021, 12:33 AM	#5
Krotos1970 Join Date: Apr 2021 Location: Wichita KS Posts: 8	Anybody use sprockets 14/40 or 15/40, I got an o-ring 428 130 links with 17/45 already installed, I am gonna go back 15 front and put a 40 on the rear which I already have on hand, I was wondering should I buy another shorter chain to experiment this or just cut the one I have and go with 15/40 or 14/40 or 13/40? Reason is I want a little more torque and a little more stop speed!
	0

01-17-2023, 06:09 PM	#8
wally Join Date: Nov 2021 Posts: 45	There might be a max torque spec for spokes, but really you are using the spokes to "true" the wheel, meaning to make it be perfectly round when viewed rotating from the side, and not have any side to side motion when viewed from the top - not just torquing them to a certain value. Please watch these two videos.
	0