Problems uphill and high RPMs?

I recently bought a 2003 Suzuki Marauder vz800. Overall the bike runs great for where I live and my daily riding. But something is a little off.

Whenever stress is placed on the bike such as going uphill (almost any angle as long as it is upwards) or when I try and push past 50mph, I start to lose power and pretty

I recently bought a 2003 Suzuki Marauder vz800. Overall the bike runs great for where I live and my daily riding. But something is a little off.

Whenever stress is placed on the bike such as going uphill (almost any angle as long as it is upwards) or when I try and push past 50mph, I start to lose power and pretty quickly. When losing power, if I give more throttle, I hear skipping type sounds out of the exhaust and continue to lose power. It s a problem because I would like to start taking longer rides but am worried about being caught in a bad situation if a long hill comes along or an extended 55mph zone.

I do not know too much about motorcycle mechanics yet and realize this isn t much information but am curious to know if anyone has heard of similar issues and possible causes.

Other answer:

David:
You have a problem. It is likely on the air intake side. What exactly is impossible to tell without the bike.
Candid Chris:
Could be a number of things-
First/cheapest is to check engine compression, standard guide would be 150PSI.
150-125 is okay, 125-100 is not that great and below that says work needs to be done.
That work could also be from a number of things, value adjustment/piston-ring wear/ valve-seal wear.
Might also be carb adjustments…
…the list goes on

Not going to write a book here and with you having little knowledge of what is going on is no help, so suggest you take it to a Shop to do a break-down test to figure out the problem(s) and re-ask your question, as many details added is helpful.

Gavin:
You have a problem. It is likely on the air intake side. What exactly is impossible to tell without the bike.
Jane:
You have a problem. It is likely on the air intake side. What exactly is impossible to tell without the bike.
Claire:
You have a problem. It is likely on the air intake side. What exactly is impossible to tell without the bike.
Joe:
Blue anonymous' answer is pure idiocy…..It sounds like it could be your clutch slipping. Change your oil with the proper oil (motorcycle oil, not car oil) and check the clutch adjustment.

The stuttering you hear may be the engine hitting the rev limiter (it's not very high).

Or, try some new plugs (they need them at around 15k).

WRG:
You have a problem. It is likely on the air intake side. What exactly is impossible to tell without the bike.