drz400 engine on hawk 250?

[jatgm1]

will a drz400 engine mount on a hawk 250 without any modifications to the frame?

[culcune]

I have never seen this mentioned on Chinariders. I would tend to stay away from putting anything with a lot of horsepower to the standard, lower-cost dual sports' frames. Other than the higher quality bikes, like the Pister Pro or the SSR XF250 (that might be a fit since the SSR engine is a near clone to the Suzuki TU250x engine (I think fuel-injection on the Suzuki to carb on the SSR is the difference). Come to think of it, there was a member from Alaska who did put a 400cc Honda quad engine into his Lifan GY-5 200 dual-sport until it broke. This was several years ago...

[jatgm1]

hmm. know of any bigger engine that would work for a hawk 250? i just want some more power, and i cant get the aftermarket exhaust to work no matter what i do, i think it needs the backpressure of the cat.

[Megadan]

Myself and many others will disagree with the engine needing the backpressure of the cat. My bike picked up power at every point in the RPM range after doing the exhaust and intake.

Have you bothered re-jetting your carb?

[JerryHawk250]

I removed the cat on the stock exhaust and drilled a few large hole on the tail end. You will need to rejet to at least a 110 jet. I have a 115 main but I'm at sea level. Big improvement in power.

[Megadan]

Intake mod or pod filter combined with an exhaust, at sea level to around 1000-1500ft elevation a 115 main is usually the ticket.

I noticed in another thread that you mentioned you can't get the bike to idle. So before we delve too deeply into the carb tuning side of things we should get an idea of what you currently have on your bike.

Do you have a pod filter or other intake mod>
What carburetor are you using? Stock one or the Mikuni clone?
What jets are currently in said carburetor?

[2LZ]

Come to think of it, there was a member from Alaska who did put a 400cc Honda quad engine into his Lifan GY-5 200 dual-sport until it broke. This was several years ago...

Yep, WildAlaskan. It worked out pretty well but was a surgery and a half. If I remember right, I think he ended up banana-ing the box steel swingarm the Hondoids have, among other things. It couldn't take the monster torque of the 400, if I recall.
He could put a man on the moon with coat hangers, a welder and duct tape though....... ;-)

[jatgm1]

Intake mod or pod filter combined with an exhaust, at sea level to around 1000-1500ft elevation a 115 main is usually the ticket.

I noticed in another thread that you mentioned you can't get the bike to idle. So before we delve too deeply into the carb tuning side of things we should get an idea of what you currently have on your bike.

Do you have a pod filter or other intake mod>
What carburetor are you using? Stock one or the Mikuni clone?
What jets are currently in said carburetor?

i tried jetting it myself and i had it with a pod air filter and with the stock one, neither worked properly, i ended up bringing it to a shop with the pod air filter "http://www.ebay.com/itm/42mm-Clamp-On-Apple-Motorcycle-Air-Filter-For-Honda-CB-400-500-650-CBX-CBF/282465746157?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649"
and a mikuni clone carb, with a bunch of jets, he tried rejetting it, it ran, but once it warmed up it would just die at idle and im pretty sure it was misfiring, or not idling right somehow. idk. because if i leaned it out from there it refused to start or idle at all, and if i richened it it also refused to start. so yeah. pita.

i put the stock cat back on and then put the aftermarket muffler and muffler pipe on, after dremeling it to fit on the stock cat pipe properly, and it did.

BTW i actually just lost the exhaust plastic end cap (like while riding before coming home and reading this) from one of the generic 60$ mufflers, just fell off while riding, couldnt find it. where do i buy one bc now its loud as shit, and idk what its even called, i couldnt imagine its expensive.

[jatgm1]

oh btw, its technically a "shark 250" but i imagine their identical other than the remote start and fmvss cert.

[Megadan]

As far as the muffler cap, most likely you won't be able to find just the individual part for it. If you can't find the original one and repair it or put it back on then you will likely be looking at getting a new muffler.

Before I delve into the carb setup I want to start with a simple question. Are the valves adjusted?

As far as the carb setup.

I have the Mikuni clone as well and pretty much the same mods. To start, if you haven't upgraded from the stock spark plug, do so.

First, ensure that the float height is set correctly. If you invert the carburetor, the floats should come to rest and the top of the floats (will be on the bottom upside down) should sit level with the flange the bowl seals against. Once you know the float height is correct, or adjust it if necessary we can go to step two.

Step two is just to ensure that we don't have a wild variable. Clean the carb and if you have some compressed air, blow out all of the passages where air and fuel flow through to ensure there is no trash causing flow restrictions.

Since I don't know your elevation still, I can only assume you are below 2000ft. These are my jetting recommendations for you to start with.
Main jet: 115
Needle jet: 1 notch down from the center, or 4th notch down from the top.
Pilot jet: 27.5
Mixture screw: 1 1/2 turns out from lightly seated. Depending on your altitude, 1 1/2 turns might be a hair rich, I have mine between 1 1/8 and 1 1/4 turns out from lightly seated. The best way to set the idle mixture and is on a hot engine using the idle drop method.

My bike, and numerous others, run this or close to the same jet setups. If your bike still does not want to run or idle at this point, then there is something else going on.

[pete]

will a drz400 engine mount on a hawk 250 without any modifications to the frame?


sure will.. straight bolt in fit...

the hawk frame even has the radiator mounts...

well it was a good fantesy while it lasted...
anything is possable I surpose.. but theres far
better running gear out there than a hawk if
you have a DRZ400 motor...


..



...

[Emerikol]

Killing some time before I have to get ready for work, so I thought I'd toss in my two cents worth. Personally, I think you would be better served swapping the engine out with something air cooled. the DR200 engine is a monster of a mill, and will get you all the things you want without having to worry about trying to figure out a liquid cooling system. The total package size is also likely to be much closer to what will fit right in. I would say head on over to your local Suzuki dealership and take lots of pictures and measurements of the engine. From there you can start the process of seeing how much work it would be to do the transplant. From there you can decide if it's really something you want to get into. I agree with MegaDan, though. It sounds like you're not getting fuel all the places it should go and/or getting it there in the right amounts. Check the valve clearances and do a poor-mans compression test (put your thumb over the spark plug hole and spin the engine by hand), that will tell you if the chamber is sealing up properly. It's possible you have a bit of carbon hanging one of your valves open. Take the carb apart and make sure it's clean and there's no little bit of grit of trash plugging up one of the orifices. Those passages are really tiny, so even if you don't see anything, it doesn't mean it's not there. Make sure your jets are sized pretty close for your elevation, and that they're seated all the way and tight in the holes. Clean/replace/upgrade the spark plug. As for the exhaust, I don't have any plastic parts on my aftermarket can, do you have a picture handy? Where did you get the exhaust? Hope this helps get your bike on the road!

[sshevie]

Just a thought on the fueling issue. I also own a shark it was starting to act up a bit like what the op is describing, I went through every thing with no positive results until I for no reason at all pinched the fuel line, it collapsed with almost no pressure so on a lark I replaced it and my issues stopped immediately. I'm not sure exactly the problem with it but my guess is the ethanol in my fuel degraded it to the point it was collapsing on throttle up.

[DaLLaS21]

I have never seen this mentioned on Chinariders. I would tend to stay away from putting anything with a lot of horsepower to the standard, lower-cost dual sports' frames. Other than the higher quality bikes, like the Pister Pro or the SSR XF250 (that might be a fit since the SSR engine is a near clone to the Suzuki TU250x engine (I think fuel-injection on the Suzuki to carb on the SSR is the difference). Come to think of it, there was a member from Alaska who did put a 400cc Honda quad engine into his Lifan GY-5 200 dual-sport until it broke. This was several years ago...

You can swap out your piece of crap 250cc with an xr400cc and be in power heaven.

[XLsior]

just save up for a used dr650 wipe it down and call it a day.

Putting Chinese honda clone engines in old bikes I get. Putting Jap engines in Chinese frames not quite ideal, like British design with Italian electrics.

If you have the time and the engine gathering dust in a garage corner then anything is possible...but is it really worth it?

[Wild Dog]

just save up for a used dr650 wipe it down and call it a day.

Putting Chinese honda clone engines in old bikes I get. Putting Jap engines in Chinese frames not quite ideal, like British design with Italian electrics.

If you have the time and the engine gathering dust in a garage corner then anything is possible...but is it really worth it?

Indeed, the british engine will spill oil all over the electronics.
But seriously, is pretty much pointless putting a jap engine on a chinese frame. Is not very hard to find a good frame made in japan without engine

[TxTaoRider]

How about an old dr350 motor?

[culcune]

Years ago there was a member from Alaska who documented putting a 400cc Honda engine (I believe it was from an ATV) into his Lifan GY-5. From what I remember, after months of fabricating and whatnot, he finally got it in and running, but it had too much torque for the frame, and he ended up with a broken bike frame.

That being said, I wonder if a Qingqi-based bike, such as the XF200 as sold by Qlink several years back or the current XF250 as sold by SSR would be good candidates for such a swap considering the Qingqi bikes are Suzuki-cloned engines. They are reportedly more stout than the numerous so-called 'Hondoid' bikes.

[Wild Dog]

Years ago there was a member from Alaska who documented putting a 400cc Honda engine (I believe it was from an ATV) into his Lifan GY-5. From what I remember, after months of fabricating and whatnot, he finally got it in and running, but it had too much torque for the frame, and he ended up with a broken bike frame.
.


But that GY-5 frame is not the same frame as the one from the Hawk or similar.

23818

Current frames may not have the linkage but they are sturdier

23819

[robertj1984]

I’m currently putting a Suzuki savage 650 engine in a hawk 250 frame.. of course I am adding some strength to the frame but I’m also trying to keep as light as possible