| Author | Message | ||
     Xodot |
I have heard the 1125 is made to run 7-9.5k RPM, but can I hurt it by keeping it in that range for too long? | ||
| Froggy |
It will be fine there. I haven't heard if they do it for Buell (but I don't see why not), but engines usually are throughly tested during development. They run it near redline for god knows how long to see if anything blows up, and then take it apart to see what parts hold up fine and what parts need improvement. | ||
| Zane_t |
Just be careful downshifting. That's where most over revving occurs. | ||
| 07xb12ss |
Your stator won't go bad! Haha | ||
| Froggy |
Don't forget which way to shift if you have GP shift on one bike and not on the other. DAMHIK!  | ||
| Bob_thompson |
I agree with most things stated above but will add; at sustained engine speeds of any rpm range engineers have found that certain harmonics are created that are not good for ANY engine. Varying the rpm's is always better for any engine for the greatest longevity. Even endurance racing sees a wide variety of speeds and rpm's. Do some more research. Fairly well accepted throughout the industry. | ||
| Dannybuell |
In 1971 I was riding with the Honda Dealers son, me on my cb450 and he had the new CB 750 in line 4cyl. These were marvels at that time. The 2 stoke Kawasaki triples were just as wild. As we waited for him to warm up his bike, he warmed it up more than most, I clearly remember him telling me what the Honda Zone rep had told him; "Engine wear doesn't really begin until 2/3 of the engines operating rpm's.". My S1 at 70mph is at 4000rpm on what is basically a 6000rpm motor. Sustained Higher speed highway driving has killed that motor with 3 top ends over the years. You are definitely burning oil at those sustained engine speeds. The CR does 4000rpm at 70mph just like the S1. The only difference is that the CR engine is at 40% of it's operating range when the S1 is at 66%. I believe that the Rotax engine will outlast my S1's excellent service history. The big maintenance item for the S1 was top ends. I am hoping the big maintenance item for the CR will be valve adjustments. | ||
| Jdugger |
The 1125r motor is very conservatively configured in stock trim. You can expect to run the motor at near red-line indefinitely without issues. I do. I'm at 41k now. Weekend after weekend I beat the living piss out of the bike. | ||
| Jules |
Weekend after weekend I beat the living piss out of the bike. LOL - me too  | ||
| Dannybuell |
I don't think anybody will argue that all engines burn some oil at sustained high RPM's. The question's are; Sustained for how long? How high were the RPM's? How much oil does your engine hold? How hot does your oil get? A couple of hours once a week on the track does not add up to too much. I know places in the Dakota's, Southern Montana, Wyoming, Utah, Idaho, Nevada, and Eastern Oregon that you can ride for long periods of time at very high speeds. I am sure the same is true in other parts of this country. The following oil capacities: 96s1 - 2 quarts 1125 - between 2.5 and 3 quarts, v-rod - between 4.5 and 5 quarts. Which of these bike's would you take across the country this summer with pit stops only for gas, food, and sleep? The S1 would be last on my list. | ||
| Bob_thompson |
Nothing at all wrong with sustained speeds for a period of time, just change gears once in a while to change engine rpm's. That changes the engines harmonics. It truly is a great, durable engine thanks to superior engineering. Bob | ||
| Tyler |
just one question???who makes the best pipe for the street.09 1125r for under 1k  | ||
| Froggy |
Duh, the 1125. The S1 is old, the V-rod is a v-rod, and the 1125 is great all day touring
Why not make a new thread? There is nothing in this discussion related to exhausts. | ||
| Dirty_john |
I think you will find that the consensus view is that 90% of engine wear occurs at cold start up with engines being put under load before coming up to operating temperatures. | ||
| Dannybuell |
Dirty_john - THX |
