1988 Honda Hawk GT 650 - 663cc Wiseco Motor - Part 1 (external)

My 1988 Honda Hawk GT 650 with plenty of upgrades.
Upgrades
2008 R6 front end
Ducati Monster seat and pillion
Acerbus Cyclops headlight
TrailTech Vapor dashboard
3" Rise welded subframe
Fabini Hugger
TYGA rearsets
Fox Twin Clicker rear shock
CBR 600RR integrated taillight
Rear wave cut rotor
FMF Ti4 exhaust (org from a CRF450)
Completely custom wiring harness and fuse box
Custom tail tray for electronics
Custom battery box (replaced stock coolant res)
Wiseco 663 pistons
Mild port and polish
Decked head (not sure how much, bought used. can see machine marks though)
X8 Race cams
KG clutch fibers and steels
2 heavy duty clutch springs
Factory Pro shift kit
Stage 3 jet kit
Uni Pod filters
New seals, gaskets, boots from HordPower.com
Tons of help from HawkGTForum.com
Hope you enjoy. Check out part 2 for "under the hood" peek around video!

[@Celco217]

Thanks! I love the work and the pleasure of riding it! Nothing like parking next to a bunch of newer bikes, sitting about 20 yards away, and just watch as people walk up and try to figure out what it is.

[@user-et5om1ci9u]

I owned one of these RC31's before. I believe the big weakness besides way too much engine braking, when you close the throttle. Were the cylinder heads themselves. Originally came on the 500 ascott. Honda just bolted them onto the Nt 650. Something about forgoing emissions testing. Was always curious, never researched it. Honda VT750 also used a 3 valve cylinder design. I've also seen an abomination Hawk with a 2-stroke RZ 350 engine. Two big gains from that was a weight loss of around 100 lbs, and no more abundance of over engine braking you closed the throttle. Beautiful aluminum frame and swing arm is what this bike was blessed with.

[@Celco217]

All it needed was a "custom" set of steering head bearings. If you call up all-balls and tell them what frame you are trying to put what front end on, they will let you know what bearings/bearing kit to get for what you are trying to do. The R6 has a longer steering stem then most Honda bikes. This made me have to put a bit of a spacer in (an inner race from an old stem bearing) to take up the space between the top and bottom triples.

[@LowInertia]

Absolutely beautiful bike. The best looking Hawk I 've ever seen hands down.

[@KutWrite]

Wish you had started it!

[@bfirouzan36]

Can you walk me through what went in to getting the Ducati Monster seat on the Hawk? How much modifying of the subframe, what type of seat/year of ducati it came from? I'm wanting to do a similar mod. Bike looks amazing!

[@madheadmadDAZ]

that looks really cool

[@Celco217]

@CHARLIETWW Its only worth it if someone pays. Depending on what is done and the quality of the work to the bike... it might be. But you can get a beat up stock Hawk for not too much if you look. The first hawk I bought was $100 and needed a new countershaft. So I bought a pretty sad Hawk for $700 but it had a motor with only 3000 miles on it and swapped the motor. Then I found a incomplete project Hawk for $800 and took the R6 front off.

[@Bajker4ever]

Headlight and mask are gross, rest is awesome , nice job

[@MarkKenworthy-d2d]

Looks great, very unique

[@Celco217]

Unless you just happen to find a sweet deal on a front end (got my R6 front [~$700], Fox shock [~$400], and titled bike [~$1000] all for $800 total) I would just look for a Honda front end. Most Honda bikes use pretty standard dimensions on their front ends. From what I have seen/read, frames have the same stem sizes and thickness on the frame. Do your measuring and research and you'll be able to make it happen.

[@Sexislav]

Hello! incredible bike I have Honda Bros 650 I want to ask where they buy TrailTech Vapor dashboard, Fabini Hugger, Stage 3 jet kit, Uni Pod filters? I find very useful information in HawkGTForum, but failing to register to see all photos Sorry for my english Greetings from Bulgaria and Merry Christmas.

[@danielbautista0000]

Do you remember the part number for those pistons?

[@Celco217]

@CHARLIETWW Not that I really would like to think about it, I probably have close to $3500 into this bike with EVERYTHING (price of parts bikes minus sold off parts). When I fix up and sell this other bike as complete for $1500ish that total price will be less... the way I justify this in my mind.

[@CHARLIETWW]

Your Honda looks really really unique and nice. How much does it cost to do all mods? It now looks like a naked super bike priced above $10,000.

[@rothxprak]

For the yaymaha r6 front end, did it fit nicely without any mods? Did it fit like a 954 cbr/cbr 600 would fit?

[@defaultuser8]

hi man, i am looking at a Hawk Gt to do a somewhat cafe racer, brat.. about the nonoarm in the rear, and about the rear whell... can you change the rim no prob, or because it´s a mono arm it wont fit? can you please help me out...

[@zookr]

Look up the hawkgtforum online

[@defaultuser8]

@@zookr thanks man! 🙏🏻

[@zookr]

@@defaultuser8 Mine is an '88 - #13 !!!!!

[@GreekpowerMITSOSGR]

HELLO I HAVE A HONDA BROS 400CC (THE SAME BIKE ACTUALLY ) WAHT BACK SUSPENSION DO YOU WEAR ?

[@CHARLIETWW]

I also saw a1988 Hawk GT on sale on Craigslist at San Diego, California for $3,200 firm. Is the price reasonable? Is it possible to get one at half of that price?

[@zookr]

Depends on the seller, I bought my 1988 Hawk (w/mods) last year @ 3G even