Going to try the new Hummer G4

To ourhouse4:

I received the G4 Hummer this week and have assembled the bike to completion.

Comments so far:
1. The bike is a far superior construction to the old Hummer - and seems a lot stronger and better finished.
2. The Owner's manual and assembly instructions were not the best however. One assembly item not mentioned is the absence of installed brake pads on the back wheel - which seems at first glance to be fully installed and in-situ. The lesson here is not to press the rear brake pedal until you have the pads installed.
3. Tomahawk were pretty quick at answering questions and did seem keen to support their product.
4. The engine is rated at 12.5 KW - but we think there is scope to get another 3 to 5 KW out of the beast - with some minor engineering and tuning mods.
5. With the extra power, Tomahawk have opted for a smaller 41 tooth sprocket to increase top speed - I think this was a mistake. My preference would be for a larger sprocket and to enjoy more acceleration and low-end grunt any day. With this in mind, I have ordered both a 47 tooth sprocket and a 54 tooth sprocket to try out.

Looks promising so far - hope to have a full review in six weeks (bike requires a 1000k running-in).

To hickmanioz:

I had a look at the Wanneroo off-road area (next to the karts) - and agree it's a better place to ride than Gnangarra. Going to trial the bike there - and at Lancelin.

man its gunna take you months to run it in 1000k's lol you only need to run a couple of tanks of fuel.

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Yo

Unfortunately running in a Chinese bike is like running in an English bike 50 years ago.

About 1000kms is right - with oil changes at around 300, 600 & 1000kms.

This is particularly important, since we are going to beef up the power output - which will put the gearbox and clutch under additional strain.

The same thing applies to checking the bike over. A lot of stuff is not pre-lubed and many of the bolts aren't torqued to the correct value - so you have to go over them with a fine tooth comb and check everything - a real mechanic's bike!

I'm sure a lot of folks just rush things and get them going out of the box ASAP - which is where you will run into trouble.

Chinese bikes are cheap - but there is a price to pay in extra care & maintenance - plus some tinkering to get them at their best.

If you take the time however - you can end up with a pretty good bike for the money - and learn a lot about mechanical servicing on the way.

have the 250's got an oil filter? if they dont youll be changin oil ever 3-4 good rides....

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Yo

This one has - and I've noticed a few other makes have oil filters on their newer models - but you're right, some of the earlier offerings don't.

THe good thing about some of the newer models is that the replacement oil and air filters are common designs with some of the Jap bikes - so even if the OEM Offerings are a little suspect - the replacement parts will be good.

I intend to change all mine after 300k

seems like alot of stuffing around for $1500

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ONE INDUSTRIES CRF250R

well the bloke is tryin to do a full reveiw on the bike, good on him i say

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Rise of the Minis
Online Tech help>j_driver_75(at)hotmail.com
Rides:
Honda CT90 Trail: Stock
Suzuki GSX 400: (project bike)
Pocket Rocket: Lightened flywheel
Hilux 4Runner: 2 inch lift, Extracters

The story goes like this;

Chinese 250cc - $1500 + $250 upgrade parts + time & tinkering = good bike

Good secondhand JAP bike - $6,500 - + $800 service + Parts = good bike

New Jap or Euro 250cc = $11,000+ - great bike but do you need (and can you handle)all this capability and what else could you have done with the money?

If money is nothing to you - sure buy a 2007 KTM, if you can handle it!

IF you want to have some fun for a small layout - and enjoy the mechanical side of bike ownership - buy a good China!

Very well said. Good on you for contributing your knowledge and experiences to the forum, Im certain multiple members will find this information usefull.

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S1K-MNI

I read this thread before joining and thought I'd check in to see how it was all going?

I have bought the same bike (just waiting for it to be delivered) so interesting to see how it's all progressing.