--- In
DSN_KLR650@yahoogroups.com, "Jud" wrote:
>
> Something similar has happened to a lot of us. It is probably fuel starvation possibly caused by fuel vaporizing in the tank or fuel line in the heat. A lot of heat spills off the engine and radiator. The wind could be contributing by directing the heat onto the fuel line. This is a hard problem to pin down because it seems to depend on a combination of conditions that are not readily duplicated.
>
> Somewhere in my kit, I still have a piece of insulated bubble wrap, carried with intention of wrapping it around the fuel line the next time it happens to see if insulating the fuel line has any effect. Others may have already insulated their fuel lines, but there is no clear evidence that they have solved the problem.
>
~~~I bought a Y2K Moto Guzzi V11 Sport new that year. Took about 6 months to start experiencing fuel line heat issues but at first I didn't know why the motor wouldn't run after getting hot...First time around I let the motor cool down cause I didn't know what else to do. After the motor cooled off, she fired and ran like no opne's business
2nd time this happened I was in a rural area and pushed the bike a ways til I ran across a garden hose and decided to spray the motor. Bingo!, she fired right up
Third time it happened (all these occurences happened within days apart from each other) I was rolling in the city, felt it acting like it was starving for fuel, pulled the clutch in and coasted to a stop at a filling station, hit it with a hose, good to go
So I knew I needed a new fuel line, bought and installed whatever fit from the local auto parts...problemn solved, til that new hose started collapsing internally, about 6 months later. Another replacement hose solved the problem
This particular Guzzi routed the fuel hose very close to one of the cylinders. It soon became empirical to the rest of those with this machine to replace the fuel hose periodically
In regards to the OP's bike and his fuel starvation problems...fuel line is fairly inexpensive=:-) Would Tygon hose work better last longer? Dunno. Maybe that isn't your problem but as cheap as fuel line is, may be worth replacing to see if that takes care of future starvation episodes. The fatory service manual I bought for my 08' KLR states to replace the fuel hose after 4 years. Probably not a bad idea but, other than the one Guzzi I had this problem with (had 3 other Guzzis w/o this problem), never had another bike with this issue and I've ridden a bunch opf different bikes in the last 35 years
FWIW, I had an MGB where one of the front brake hoses would collapse internally. Found out about it on the way to work. got to the work parking lot (gravel) and the4 left front brake locked up. Wouldn't release. since the parking lot was covered with loose gravel, I drove the B into a parking space with that wheel dragging. Next door to us was a 2 man foreign car repair facility. told them about it, they knew immdiately it was a collpased hose and replaced it as fast as they could get a hose for it
Come to think about it, the same KHI manual says to replace the rubber brake hoses used in the KLR every 4 years too. Maybe they know something we don't=:-)
Jake
Reddick Fla.
Pessimists by nature have a better time of life, as having our expectations dashed against the rocks is seldom a bad thing. On the contrary it is usually a pleasant surprise.
http://www.shakinjake.blogspot.com/
> --- In
DSN_KLR650@yahoogroups.com, "leroy_cope" wrote:
> >
> > While running a sixty mile section on the freeway this afternoon at 80mph, 85 degrees and fighting strong crosswinds the engine started cutting out I slowed down pulled over to the side of the road after a short time 5 or 10 seconds engine started running fine again, this happened twice this afternoon.
> >
> > I ran the same freeway in the opposite direction early this morning doing the same speed 80mph, 50 degrees and no winds KLR ran fine with no problem.
> >
> > My thought is it sounds like fuel starvation to me.
> > Mileage running at high speeds 80 mph was 44mpg.
> > I added 6 oz of Sea Foam and topped off the tank.
> >
> > Suggestions?
> >
> > Roy Cope
> >
>