HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
trevor450f

Miss/Stumble at 'cruising speed' (rpm related)

3 posts in this topic

I've recently rebuilt my '03 (new crank, and all bearings). I also added an hour meter.

I finally took it out for a good ride since its been rebuilt, and I'm noticing a miss or stumble at a specific rpm. My best guess is its at 75% throttle. I first noticed it while cruising down the road, but checked it in other gears and it does the same. It has lots of power up to this spot, then stumbles a bit, then lots of power out the top rpms. I have also started running premium fuel in it, I ran just pump gas in it before it blew up (I know, I know).

Where should I start? Is this likely a jetting issue?

Share this post


Link to post
Share on other sites

What's the difference between pump gas and premium? You're not saying that you are cruising down the road at 3/4 throttle, are you?

Share this post


Link to post
Share on other sites

Sorry, 'pump gas' was just regular (89 or 87) out of a bulk tank of our own. Premium is 91 or 93 I think.

My best guess is that it is somewhere in the 75% range when I'm on the road. It seems to be missing right when I'm about to up-shift in each gear. Is cruising at 75% not good?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0