Going to try the new Hummer G4

[rodbox5]

Originally Posted by bananasboy91

hey guys i need abita help with mine the chain is lose and i dont know how to tighting it can any1 help plz??
thanks

Hi Bananasboy,

Expect your chain to loosen a little as the bike is ridden.

To tighten it:

1. Loosen the rear axle nut

2. At the rear of each swing arm close to the axle nut, find the wheel adjusters.

3. Depending upon which model Hummer you have, the wheel adjusters will either be a screw and locknut type - or a rotating toothed cam.

4 If you have a screw and locknut type - first loosen the locknut then start to undo the screw a little at a time. As you undo the screw, it forces the wheel backwards in the axle slot - thus tightening the chain. Make sure you undo the adjusting screw on each swing arm the same amount - so as to keep the wheel and axle evenly aligned.

4a - If you have the rotating toothed cam type - just rotate the cam to force the wheel backwards and thus tighten the chain. Opposite the cam's teeth you will see a metal pointer, which acts both as a reference mark and a tooth lock. This makes it easy to ensure that both wheel adjusting cams are set the same, since all you have to do is count the number of teeth to the pointer.

5. When the wheel and chain tension are set correctly (20mm - 25mm of free play), you can then re-tighten the axle nut. Note that the axle nut needs to be tightened to around 60 to 70Nm on the torque wrench - which is pretty tight. This level of torque can actally force the wheel back further in the slot than the adjusters are set - causing the chain to be too tight.

6. To stop this happening, fold a rag and jam it between the chain and the rear sprocket, by rolling the bike backards. This forces the wheel forwards onto the adjusters - thus ensuring the wheel remains in the correct position whilst the axle nut is re-tightened.

7. Roll the bike forwards to remove the rag - your chain tension should now be correct. If you lift the bottom of the chain with your finger (somewhere around the middle) you should ideally get about 20mm - 25mm of free play. Note that it is better to have your chain a little loose rather than too tight. A chain that is too tight will damage both itself and your sprockets in a real hurry.

Since you are asking this question, I'm assuming you haven't replaced your Chinese chain with a good quality alternative. If this is the case - I would strongly advise you to get a DID 428 NZ replacement chain ASAP. The Chinese chains don't last long - and a breaking chain at speed can be catastrophic and really scary.

Hope this makes the procedure clear.

[bananasboy91]

thanks mate ill give it ago tomorow o and btw where would i get that chain and around how much for?? thnaks agen

[rodbox5]

Originally Posted by bananasboy91

thanks mate ill give it ago tomorow o and btw where would i get that chain and around how much for?? thnaks agen

If you get it from your local Aus motorcycle shop, expect to pay $75 - you can sometimes find it on e-bay from $35 - like here:

eBay Motors: D.I.D. Heavy Duty racing chain for GS-200, and others (item 120125749760 end time Apr-20-08 22:22:22 PDT)

It will last you a long time - so don't mind the investment.

[Weegee]

Hey guys
My mate has been convinced to buy one of these chinese wonders, he was so impressed with the marathon easter riding weekend he has decided to get one.
The bike he is getting is a Orion ProX the same as this:
2008 NEW GREEN ORION ProX 250cc DIRT BIKE PIT THUMPSTAR - eBay Other Trail Bikes, Trail Bikes, Motorcycles, Cars, Bikes, Boats. (end time 04-Apr-08 17:30:00 AEST)

He is only 5'5" so he is getting the one with 19" and 16" wheels and in saying that he only weighs 62kg.
I am going to get it with him tomorrow so i will keep you all informed but by all accounts it looks like a beautiful bike nice frame etc.
The only thing i can see him having an issue with it states on the website for the bike that it only has a 3L fuel tank so i don't know how he will go on the longer rides especially if he puts a muffler on it etc, and also seeing that the old Kud Pro has a 6.5 litre tank he might have to have a fuel drop some where near where we ride.

[rodbox5]

Hi Weeg,

Wish I'd thought getting of one for my wife - this Cob & Co Link I purchased is proving to be a real dog of a bike and I wouldn't recommend it to anyone.

Let me know how it goes - I might donate the Link to charity and try the Orion.

[Jaz808]

I have the Atomik version of that bike ProX250, (AGB30)front shock are too soft and will bottom out, they are geared low for speed
I have put spacers in, heavier oil and added air in the bottom of the shocks but still soft, i have 17 front and 56 rear sprockets more torquey
I have had the bike since last october, got it rec regged, had to stamp a number on te frame as it doesnt have one, only a plate
Nothing has broken so far, like everyone else locktited everything and oiled and greased rear suspention

[rodbox5]

Hey Weeg - let me know if the front forks on the Orion are firm & adjustable (with clickers) - I may buy a set for the Link!

[Weegee]

Hey boys
Well my mate got his ProX on the weekend and wow, the quality compared to the KUDA PRO is unbeliveable, Because we picked up the bike the carton was not damaged one little bit and therefore the bike inside was pristene as well.
The quality of the bike itself is great heaps better than the kuda pro and G4.
The only real thing is to note that it is definationly a MotoX bike, it has a tiny fuel tank, the bike is quite short you sit closer to the handle bars and it is definatly a different bike to ride. but i think i would definatly get one if i was looking for a bike at the moment.

Just another note i was talking to the importer when we picked this bike up and i asked him about the water cooloed versions (he had one in the show room) (a very nice bike as well) He said what we have all been saying if you do trail riding stay away from them the radiators are really weak and if you are riding 30-40km away from your starting point in the bush and you stack it you are gone because the radiators WILL be the first thing to hit the ground and the fact that they are weak as well it makes for a very long walk back to where you started from.

Rod the front forks are ok but i think they are a bit soft for guys of our weight but apparently you can space them quite easily with washers according to the importer, they are not adjustable either so you can't adjust rebound etc.

[rodbox5]

A new model plus incremental improvement - good to hear Weeg.

What aspects of the bike in particular impressed you as being better quality than the Hummer?

Shame about the suspension though - I think the forks and shocks must all be taken from Pit Bikes models. I suspect this bike has the same suspension components as the Link.

[dropbear]

Hi guys just thought drop some info in on sprockets after purshasing 17T and 56T just received e-mail from Marlone Harris bataycancorp they are realising coloured sprockets soon didn't give a date but for those who like to match rim colours or bike colours would be good cheers!