Can anyone help me with my bike in wellington today? Rg150

[jimdaworm]

Hi everyone I decided to take my power valves today and make sure they were ok :no:

Anyway I can´t/dont have the right tools to undo the big screw you can see in the pic. I think i need an impact screwdriver or somthing??

[GROOMER]

I take it you mean the phillips head one thats chewed out at the top of pic?
Have ya got a big phillips with hex shaft? If ya do you can normally push hard on the screwdriver and use a spanner on the shaft to turn it. I have an impact driver but it died a few weeks ago :( sorry.

[Drew]

Dude, DON'T FUCK WITH THEM! Seriously bro, If it aint broke, don't fix it. Power valves, have a habit of dropping down a bit too far when they get old, next time the piston comes up, the rings collect it, and bingo bango, you got no compression, and a very slow bike. Don't pull them apart, till you have all the gear to replace them. I have had experience with RGV ones on whitetrashs' multiple bikes, and after you play with them, they be real prone to fuck out.

[jimdaworm]

Hey FIZZERMAN, it does look like they are broken doesnt it?? Look at those springs they were just loose inside and that little bit of metal :no:

[Drew]

Hey FIZZERMAN, it does look like they are broken doesnt it?? Look at those springs they were just loose inside and that little bit of metal :no:
Sorry, didn't actually look at that photo. How many K's has it done? If it has done quite a few, they could probably do with a rebuild, looking at the first pic, I cant actually see where the springs came from, the actuator, and arm seem intact.
It is pretty easy to tell if they are working or not, if it goes OK at low revs, but stops pulling in the upper half of the tacho, they aint opening. If it is unridable down low, and comes on real strong in the upper revs, they aint closing.
Find a service manual, and have a look at the picture of how they should look under the cover. Those parts are obviously for something, I just can't see what, they don't look like RGV 250 ones thats for sure.

[jimdaworm]

Hey FIZZERMAN thanks for your reply. In then end I went to wellington motocycles and bought 2 new springs and the other broken bit and replaced only those bits. I wasn´t feeling daring enough to pull the power valves completely out.

Anyway I don´t notice much difference. There is a bit of pull between 4-8 then quite a lot between about there and 10 ish and after or around 10 it goes pretty hard :Punk:

Oh yeah I connected up the test wire and it looks live everything moves in and out sweet at least from the outside of the power valves.

1. New clip (Practically non existant and in 3 pieces before)

2. I noticed a very slight loosenes, on the center of this... compared with the other one that didn´t move at all when I opened the valves up.

[Drew]

They must be the return springs then, how did you get the screw undone in the end?
Hope it all goes well, looks much better in there after a bit of a clean up too.
Happy bycicling, :ride:

[jimdaworm]

I bought an impact screw driver and put a bit of wood though the front forks over the top of the mud gard so my mate could hold the wood onto the impact screw driver and I could wack it! :ride:

At least I found all the bits of that broken retainer!.

If you need to undo anything really tight I now have an impact screwdriver or anyone else around here does :grouphug:

[Drew]

I bought an impact screw driver and put a bit of wood though the front forks over the top of the mud gard so my mate could hold the wood onto the impact screw driver and I could wack it! :ride:

At least I found all the bits of that broken retainer!.

If you need to undo anything really tight I now have an impact screwdriver or anyone else around here does :grouphug:
I usually use a phillips bit in my ratchet. better leaverage and all that. Don't like hiting screws that are only in alluminium, bit of a worry if you fuck it up.
Another good one is a rattle gun and compressor, works a treat.

[jimdaworm]

I made sure that the impact screw driver was going the right way :drinkup: and the thead was soo stuff from trying the standard screw driver... I pretty much made a new one with the impact screw driver :cold:

Hey do you reakon that slight movement I pointed out should be ok??

[pete376403]

Good on you for getting the right tool for the job. Too many "home mechanics" (and so-called professionals too) fuck up things by trying to do a bodge job with the incorrect gear.
An impact driver, even the low end units as sold at Super Cheap, do less damage than a hand screwdriver. Should be the first thing bought when starting a tool kit to work on bikes. And as for those horrible pot metal "wrenches" that come with the bike, put them away in their vinyl bag and only bring them out when the bike is sold.

Buy good tools, look after them (this includes not lending them) and they will last a lifetime. I still have most of the SK-Wayne, Stahlwhille and Snap-on gear that I bought when starting my apprenticeship some 30-odd years ago.

[jimdaworm]

True, it just happend to buy my impact screwdriver from supercheap :devil2: I went to repco and it was twice the price. The thing is I dont think I will use it very often so I thought it wasnt worth buying and expensive one.

The hand screw driver was obviously not the right thing to use :no: At least in this situation.

I guess I am just hoping now that my powervalves are ok... as I didn´t pull them out. I don´t want to spend $400 each if they are broken anyway.

It seems to be fine powerwise anyway.