f/s oem seat

DSN_KLR650
Post Reply
boulder_adventure_rider
Posts: 3
Joined: Sat Aug 04, 2007 8:30 pm

is it hot in here or am i just running lean?

Post by boulder_adventure_rider » Sat Aug 04, 2007 9:30 pm

Summary: '05 with 13k+ miles (seen action). Recently overhauled top end upping one size on the piston. Concerns: seems to be knocking more than it did at idle, possibly running a bit hotter and I'm getting more backfiring when decelerating. Details: I've got a 2005 vintage with 13,000+ miles and recently I had the top end reworked to the next size up. I've done the 500 mile break-in and under load it runs like a champ. However at idle it seems to knock a bit more than I remember. In fact, today I couldn't keep it idling properly, so I thoroughly cleaned the carb, put in a fresh Uni air filter and fixed a kink in the "T" mod for the carb. Now, my neighbor has a 2007 that I've compare the sound to and it does knock here and there compared to his showroom condition. Then again I'm running closer to 1,100 rpm and he's closer to 1,300. This explains some of the difference. But mine also seems to run a bit hotter than it used to. Now this could be my paranoia, but my temp gauge goes over the middle mark when idling on a not so hot day. Lastly, I notice a bit more backfiring when I rev the engine or decelerate quickly after speeding. I've check the exhaust for leak and all seems tight. Do you think after the overhaul (top end) maybe I'm running a bit lean with a slightly larger piston/cylinder? I checked the sparky and it looks normal. The main jet seems fine because it has full strength under load. So perhaps the pilot jet is too lean? Any thoughts or remedies I should try? Normally I've done my riding around sea level, but now I'm living in Colorado I'm thinking maybe the altitude and the overhaul necessitate a carb/rejet change. Thanks - Brian

Terry Hamrick
Posts: 85
Joined: Thu Jun 28, 2007 7:53 am

is it hot in here or am i just running lean?

Post by Terry Hamrick » Sun Aug 05, 2007 6:17 am

What sort of break-in did you give that new top-end? albatross wondering, wandering... On 8/4/07, boulder_adventure_rider wrote:
> > Summary: '05 with 13k+ miles (seen action). Recently overhauled top > end upping one size on the piston. Concerns: seems to be knocking > more than it did at idle, possibly running a bit hotter and I'm > getting more backfiring when decelerating. > > Details: > I've got a 2005 vintage with 13,000+ miles and recently I had the top > end reworked to the next size up. I've done the 500 mile break-in > and under load it runs like a champ. However at idle it seems to > knock a bit more than I remember. In fact, today I couldn't keep it > idling properly, so I thoroughly cleaned the carb, put in a fresh Uni > air filter and fixed a kink in the "T" mod for the carb. > > Now, my neighbor has a 2007 that I've compare the sound to and it > does knock here and there compared to his showroom condition. Then > again I'm running closer to 1,100 rpm and he's closer to 1,300. This > explains some of the difference. But mine also seems to run a bit > hotter than it used to. Now this could be my paranoia, but my temp > gauge goes over the middle mark when idling on a not so hot day. > Lastly, I notice a bit more backfiring when I rev the engine or > decelerate quickly after speeding. I've check the exhaust for leak > and all seems tight. > > Do you think after the overhaul (top end) maybe I'm running a bit > lean with a slightly larger piston/cylinder? I checked the sparky > and it looks normal. The main jet seems fine because it has full > strength under load. So perhaps the pilot jet is too lean? Any > thoughts or remedies I should try? Normally I've done my riding > around sea level, but now I'm living in Colorado I'm thinking maybe > the altitude and the overhaul necessitate a carb/rejet change. > Thanks - Brian > > >
[Non-text portions of this message have been removed]

boulder_adventure_rider
Posts: 3
Joined: Sat Aug 04, 2007 8:30 pm

is it hot in here or am i just running lean?

Post by boulder_adventure_rider » Sun Aug 05, 2007 8:25 am

first 500 miles under 4k rpm and varying throttle. now working on the next 500 miles under 5k rpm. i'll probably check valve clearances at 1,000 mile mark. --- In DSN_KLR650@yahoogroups.com, "Terry Hamrick" wrote:
> > What sort of break-in did you give that new top-end? > > albatross > wondering, wandering... > > On 8/4/07, boulder_adventure_rider > wrote: > > > > Summary: '05 with 13k+ miles (seen action). Recently overhauled
top
> > end upping one size on the piston. Concerns: seems to be knocking > > more than it did at idle, possibly running a bit hotter and I'm > > getting more backfiring when decelerating. > > > > Details: > > I've got a 2005 vintage with 13,000+ miles and recently I had the
top
> > end reworked to the next size up. I've done the 500 mile break-in > > and under load it runs like a champ. However at idle it seems to > > knock a bit more than I remember. In fact, today I couldn't keep
it
> > idling properly, so I thoroughly cleaned the carb, put in a fresh
Uni
> > air filter and fixed a kink in the "T" mod for the carb. > > > > Now, my neighbor has a 2007 that I've compare the sound to and it > > does knock here and there compared to his showroom condition. Then > > again I'm running closer to 1,100 rpm and he's closer to 1,300.
This
> > explains some of the difference. But mine also seems to run a bit > > hotter than it used to. Now this could be my paranoia, but my temp > > gauge goes over the middle mark when idling on a not so hot day. > > Lastly, I notice a bit more backfiring when I rev the engine or > > decelerate quickly after speeding. I've check the exhaust for leak > > and all seems tight. > > > > Do you think after the overhaul (top end) maybe I'm running a bit > > lean with a slightly larger piston/cylinder? I checked the sparky > > and it looks normal. The main jet seems fine because it has full > > strength under load. So perhaps the pilot jet is too lean? Any > > thoughts or remedies I should try? Normally I've done my riding > > around sea level, but now I'm living in Colorado I'm thinking
maybe
> > the altitude and the overhaul necessitate a carb/rejet change. > > Thanks - Brian > > > > > > > > > [Non-text portions of this message have been removed] >

Norm Keller
Posts: 712
Joined: Thu Apr 01, 2004 7:48 am

is it hot in here or am i just running lean?

Post by Norm Keller » Sun Aug 05, 2007 11:05 am

How many miles on your rebore? It is amazing how much more friction is created by new rings, piston, and rebored cylinder for the first while. The slight increase in displacement can be ignored so far as jetting, etc. is concerned. As for the noise, it might be piston slap if the machine shop weren't attentive to the specifications. Many shops will bore all motorcycle cylinders as though they were air cooled and often increase the clearance a bit over that needed for air cooled engines. They do this to reduce the chances of a piston seizure during break-in and hard use. This way they are less likely to be on the hook for a problem. The downside is that the rebore doesn't last as long and there is more piston slap. HIH Norm [Non-text portions of this message have been removed]

Don
Posts: 133
Joined: Tue Oct 09, 2007 4:59 am

f/s oem seat

Post by Don » Mon Aug 06, 2007 10:52 pm

I have an oem seat from a 2002 I went with a Corbin flat right away and this seat has been in the box for sometime. have been cleaning out the garage and thought maybe someone out there needs a good seat. sell for 50 plus shipping no rips like new condition

Post Reply

Who is online

Users browsing this forum: No registered users and 14 guests