New Hawk, new adventures.

[duck9191]

the rubber boot on my uni filter ripped, might give that one a try.

[Weldangrind]

That filter looks like the perfect choice.

[Megadan]

Originally Posted by Weldangrind

That filter looks like the perfect choice.

I sm quite pleased with how it turned out too.

[Megadan]

So, in an attempt to try and tone down my exhaust just a bit, I decided to try something simple, put in a sparl arrestor with a slightly smaller diameter exit.

I used a Pro Circuit PC4000-0002 1 1/2" spark arrestor for this purpose and simply sandwiched it behind the fiber gasket and the body of the carb and bolted my tip and cover back in place. Link: https://www.amazon.com/Pro-Circuit-S.../dp/B019HAAN5U





It shouldn't hurt performance too much up top, but I will give it a run here once I get the rest of my bike back together and the traffic dies down.

I did give it a test start, and while it isn't really any quieter or louder, the "thumps" from the tail pipe are quite a bit more pronounced. I can live with that if it is just a bit less loud while riding around. If not it is coming right back out lol. This is a similar approach my my Coffman's silencer, Two Brothers, and some other muffler manufacturers use to help tone down their exhausts without hurting performance too much. It's effective on my VFR. It's still loud, but not ear piercing.

[Cravin01]

Hey Dan I'm relying on you to work this out, I went back to stock exhaust to quiet it down but miss the pull of the aftermarket pipe. JK, I will find a happy middle ground eventually...unless you do it first!

[Megadan]

Originally Posted by Cravin01

Hey Dan I'm relying on you to work this out, I went back to stock exhaust to quiet it down but miss the pull of the aftermarket pipe. JK, I will find a happy middle ground eventually...unless you do it first!

Nothing will beat the stock muffler for quietness. This did help quiet it down a decent amount, but it is still fairly loud. The pulses sharper retort kind of nullifies the reduced volume a bit, so no matter what it is still decently audible.

No real change as far as jetting is concerned.

One upgrade that did change my jetting was that new filter I put on. I even mounted the foam pod filter back on to double check I wasn't crazy.

New filter = 140 main jet.
Foam filter = 150 main jet.

So I guess it is safe to say that in terms of outright airflow, the foam filters win. As far as I can tell the new filter is still capable of the same speeds, up top, although it doesn't feel as responsive. It's only slight difference, but one I noticed.

[Bruces]

It’s really nice to see how “Megladan “ has improved his situation in a relatively short while .When his first hawk was stolen ,he was broke ,pissed off ,and crying about it (there is even a video of it ),then not really that much later he has clearly improved financially as he seems to be adding and changing things on his Chinese racer daily .Good for him ,and his followers who are gaining great info on what can be done with one of these cheap toys ,and still keeping it budget friendly .i would have a hard time buying a new cylinder head and valves for one of my yz450f’s for less than Dans entire bike and mods .Way to go Megladan.

[Megadan]

Originally Posted by Bruces

It’s really nice to see how “Megladan “ has improved his situation in a relatively short while .When his first hawk was stolen ,he was broke ,pissed off ,and crying about it (there is even a video of it ),then not really that much later he has clearly improved financially as he seems to be adding and changing things on his Chinese racer daily .Good for him ,and his followers who are gaining great info on what can be done with one of these cheap toys ,and still keeping it budget friendly .i would have a hard time buying a new cylinder head and valves for one of my yz450f’s for less than Dans entire bike and mods .Way to go Megladan.

Megadan, no L after the G, unless I am a prehistoric shark. I am having a hard time deciding if you are being extremely sarcastic here or not. I doubt your new head and valves would cost as much as a Hawk though.

Over 2 years ago April 2018 to be precise, that's how long it has been since my first Hawk was stolen. A lot can happen in 2 years for sure. I would say "not really that much later" is a lot later than you would think. It took me a while to recover, even with the help. That was part of the reason it took me several months before I had the bike on the road.

I have since tried to help others since then in as many ways as I can to help pay it forward and pay people back. Setting up and donating to several GO Fund me's myself for members here, giving away parts for no gain to myself, sharing as much info as I can. I have never once been anything other than grateful to the people here who helped me in a very difficult period of my life that I have only recently been able to climb out of. I was absent for many months until a little while ago because if it. Still am digging myself out a little.

[Bruces]

I was being completely serious ,and the valves are over $750 ,and the casting is $900. In Canada from the local shysters .You have come a long way .

[Cravin01]

I remember how crazy that was, They stole your bike at work at the time you were using it as you main transportation while you worked on your vehicle. That had to be rough! I'm glad the community came together to get you back on two wheels. I think some of us were in it for selfish reasons thinking you my leave the forums....That went as planned!

[Megadan]

Originally Posted by Bruces

I was being completely serious ,and the valves are over $750 ,and the casting is $900. In Canada from the local shysters .You have come a long way .

Holy cow that is expensive! Is there a lot of tax added on to those parts?

[Megadan]

Originally Posted by Cravin01

I remember how crazy that was, They stole your bike at work at the time you were using it as you main transportation while you worked on your vehicle. That had to be rough! I'm glad the community came together to get you back on two wheels. I think some of us were in it for selfish reasons thinking you my leave the forums....That went as planned!

My truck had broken and was not safe for road use because the steering box had ripped off the frame, and took part of the frame with it. My Honda had a front brake failure and the parts were more than I could afford because my hours had been cut at work. All of that literally happened within a 3 week period, and then my Hawk got stolen. Yeah, it wasn't a fun time for me.

I wouldn't have left the forum I don't think, at least not permanently, but it would have been a while before I got on another Hawk.

[Bruces]

Not really taxes ,it’s just how we get screwed with literally just about everything .I buy a lot of 450f’s that people buy for a trail bike not knowing the required maintenance ,and often at 8 or 9 hours up to about 40 hours ,they drop a valve or something nasty like that ,then they can’t afford the rebuild ,so I get them $7-800.00 and park them in my container and wait for parts to show up on EBay cheap before fixing them up .Before the internet it was really tough .

[Shady.2020]

*****I really appreciate all the information and have found it to be very helpful. Wondering what the difference is between the carb PZ30 and PE30. (Riding street). Additionally, looking to upgrade sprockets/chain, air system. I am not sure where to buy or oem verse China made product. Please explain and suggestions are appreciated.

Originally Posted by Megadan

Mild revamp of the Introduction page for 5/7/2020.

I wanted to change this to include all current upgrades and modifications as well as a full mods list breakdown for those that are interested. I will include links to some of the upgrades that may be harder to find.

Modifications:

Engine.
1. Ported head with smoothed and polished combustion chamber.
2. Head decked 1mm to increase compression ratio to over 10:1 (calculated 10.3:1)
3. NGK DPR8EIX-9 Spark Plug.
4. Shortened factory plug wire with NGK XDO5F plug cap with resistor removed.
5. 125ml sump drawn Oil Cooler. https://www.aliexpress.com/i/32913143396.html
6. Nibbi Racing PE30 Carburetor with 35 pilot and 150 main jet with needle at second notch.
7. CQR 250 rubber intake. https://www.chinahao.com/product/581545449897/
8. Dual layer foam pod filter.
9. Ebay CRF230F Exhaust with factory muffler end cap installed and DEI Header wrap on head pipe.
10. Stainless Steel header studs and hardware.
11. WGK 1010851 "Bravo" 292 Cam
12. Roller Cam followers.

Chassis/Suspension/Brakes
1. YSS PD238 Fork valves with custom made adapters. Found through ebay out of Germany. 15wt oil.
2. Bashan Brozz rear swing arm. https://shop.brozz250.com/eshopprod_...ingArm_Kit.htm
3. Fast Ace Bs-22ar/bda01ar 280mm rear shock with 1000lb/in spring
4. Fork Brace. (temporarily removed).
5. Sintered brake pads front and rear.
6. Dot 5.1 Ravenol brake fluid.
7. New Master Cylinder with factory levers. (this style https://www.amazon.com/Lisyline-Univ..._t3_B078W4GRWJ )
8. Custom Jerryhawk250 Skid plate with center stand.

Chain, Sprockets, and shifter
1. DID VX2 520 Chain, 98 Links
2. Front Sprocket - JTF328 13 tooth
3. Rear Sprocket - JTR279 33 tooth
4. Honda Sprocket Studs - 90128-KE2-940
5. IMS Flightline Folding Shift Lever - model 312223 for XR400.

Tires
Shinko 700. Front 3.0x21 and Rear 4.6x18 with heavy duty IRC tubes.

Controls/Display
1. Digital Tach cluster sold by Matt (no longer available).
2. Renthal Fat Bars https://www.aliexpress.com/item/3278...archweb201603_
3. Adjustable riser adapters. https://www.aliexpress.com/item/3283...archweb201603_
4. Quarter turn throttle assembly.
5. Progrip 737BK Grips.
6. Round swing-away style mirrors.

Lighting/Electrical.
1. Fanless H4 LED headlight from Superbright LEDs.https://www.superbrightleds.com/more...0-lumens/4444/
2. 1157 LED Tail/Brake bulb. https://www.superbrightleds.com/more...15d-bulb/2625/
3. Motogadget M-Blaze Pin turn signals. (from an old project) https://www.amazon.com/Motogadget-MG.../dp/B0145Q61N4
4. Cheap LED Spot lights with relay wiring harness and waterproof handlebar switch. (soon to be upgraded).
5. Upgraded main ground strap to 8awg wire.
6. YTZ7S Battery.
7. 4 position fuse panel and relays installed in modified air box.

Miscellanious
1. CSC TT250 rear luggage rack.
2. Shimmed front fender at rear bolts to angle away from oil cooler for clearance.

Current consistent top speed with mods and gearing is 74mph via GPS at around 8000rpm on the tachometer, but realistic sustained top speed is around 60-65mph for longer stretches. Acceleration is very strong through all of the gears.

A few pictures as it currently sits.

[Megadan]

Originally Posted by Shady.2020

*****I really appreciate all the information and have found it to be very helpful. Wondering what the difference is between the carb PZ30 and PE30. (Riding street). Additionally, looking to upgrade sprockets/chain, air system. I am not sure where to buy or oem verse China made product. Please explain and suggestions are appreciated.

I have no problem helping, but do me a favor and trim down the quote of my first post to the information you are curious about. It helps cut down on massive re-posting of my pictures and mods over and over again.

Difference between PZ30 and PE30 carb is simple. The PZ30 carb has a physical venturi in the carb throat that reduces airflow. The PE30 is a smooth bore carburetor. That means it has a higher total airflow and better velocity through the entire intake, which in turn makes for better throttle response and total airflow.

Your second question is too vague for me to answer. Explain what? Where to buy the parts? What parts to get? WHich parts do you want suggestions on?