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View Full Version : Powerband now, please... now RG150 Question



MDR2
18th December 2007, 17:49
98 RG150 Runs alright but hesitates around 8 thou and won't really go much further then that, which is a shame because the rest of the rev range is getting lonely :(

Anyone got any ideas as to why it is reluctant to rev out?

Also how do I fill up the oil res tank? the key fits ignition and petrol tank but in the (what i believe to be the seat release lock) i only get 1/3 of a turn and the seats remain firm.

Answers would be awesome

Cheers, Dan.

Racey Rider
18th December 2007, 18:58
Was it running right for you before?

Power valve broken, or not set up right?
Running way rich? air filter dirty? Carbon clogging the exhaust?
Tried changing the sparkplug? You'd be surprised what that fixes (Long story)

Have you tried pushing down on the seat as you turn the seat key to take pressure off the latch?

Just some ideas.

Racey

MDR2
18th December 2007, 20:35
Was it running right for you before?



I only brought it on sunday and the bike had been sitting along time , It wasn't kaned while test ridden but still ran fine.



Power valve broken, or not set up right?


Took it for a ride after making the post because it was bugging me. found a long stretch of road and wound it out in second.. it hesitated at around 8 thou but then carried on after being pinned a while. after that it seemed more then happy to rev.



Running way rich? air filter dirty? Carbon clogging the exhaust?


I was sitting at lights and the bike cut out on me for no reason, could of been one of or all of those reasons I'll give it a service this weekend



Tried changing the sparkplug? You'd be surprised what that fixes (Long story)


Will do.



Have you tried pushing down on the seat as you turn the seat key to take pressure off the latch?


Genius! That did the trick. Thanks a million dude! :D

adamh
18th December 2007, 21:17
U may have broken powervalves or the pisten isn't right, kinda like wat Racey Rider said....
Make sure u get a full service to check everything. I just bought mine about 2 months ago and got it serviced straight away which really helped as there were a few things wrong. :laugh:

MDR2
18th December 2007, 21:48
Righto, I doubt anyone will be able to look at it before xmas and im away till the new year so I guess it will just have to sit and wait.

Sure as hell hope it's not a lemon :S

ajturbo
18th December 2007, 21:55
try charging the battery

MDR2
18th December 2007, 22:07
also, can't select neutral while the bike is running. easy as when its off, gear selection is solid and sure.

Thanks all for the suggestions.

ajturbo
18th December 2007, 22:23
check there is oil in the engine!

sugilite
18th December 2007, 22:23
My vote is sticking power valve, however, if you managed to rev it out in second and it seemed happier there after, maybe it just needs a good hiding to clear it out, esp if the previous owner did not rev it much over 8k.

MDR2
19th December 2007, 05:56
check there is oil in the engine!

the amount spewing out the exhaust leads me to believe it is :) (burnt that is)

MDR2
19th December 2007, 05:57
My vote is sticking power valve, however, if you managed to rev it out in second and it seemed happier there after, maybe it just needs a good hiding to clear it out, esp if the previous owner did not rev it much over 8k.


That was my initial thought, that maybe it was caked up with crap.

koba
19th December 2007, 06:31
Seach on here for a service manual.
There is one floating about.
Change gearbox oil with recommended type, mine had heavy car oil in it!
Make sure plugs are all in good nick.
Time powervalves right.
Time oil pump MAKE SURE YOU GET THIS RIGHT!
Check oil light works!

etc etc etc, do the whole birthday works to it, as its easier and cheaper than fixing a detonated one!

koba
19th December 2007, 06:34
oh, and they often do seem to need a bit of a crank to first open the powervalves after they have been sitting for a while, and they smoke when you do it. Just make sure the engine is decently warm befor ya do!
Make sure choke is off.....unlike my first rg trip around manfield :crybaby:

Katman
19th December 2007, 07:20
Take the power valve cover off and check that the three screws holding the power valves in place are still tight.

The Pastor
19th December 2007, 08:30
so its working sweet now?

koba
20th December 2007, 11:53
Take the power valve cover off and check that the three screws holding the power valves in place are still tight.

Doing that BE CAREFULL!!!!

I munted an already dodgy one and it was an absolute bastard to drill out and fix with lots of little dangerous bits of metal In a very bad place for little bits of metal to be!

They are posidrive originally so if you can find allen head style ones tha fit and dont poke up to far it may be a good idea to replace the old ones with those but don't use cheap crap ones!