First run today, started and idled nicely.. On the road to 1/4, 1/2. and3/4 throttle the pull was strong. WOT was a bog. As engine warmed 1/2 and 3/4 throttle were still there nothing above or below those throttle settings.
I Let the engine cool down and pulled the spark plug which was dry and clean.
Test #2 Clip in middle slot. Starts and idles well. Ran reasonably until the engine came up to running temp and started to lose throttle response. but undeterred I headed for the 10/% grade. The street named Hilltop. It got me there. 100 yds up and power is fading fast, I start pedaling
and gain another 50 and then the exhaust goes pop! And silence.
Pedaling furiously I make the first wide driveway entrance and turn for home some 600yds away.
All coasting down hill to my shop. 10% pitch will get you going pretty darn fast. Saved some speed rounding the turn to make my drive and and then gravitate to the shop entrance.
Interesting ride, the return bit. Very quiet like Rick ghosting along with electric power. Wished I took advantage if the coast home to site see more than I did.
Engine was still at 148F rolling into the shop with my infrared thermometer. I'll pull the spark plug a see what we will see.
But I have had an epiphany of sorts. One thing I did before I gave the bike any run was route the catch can vent to the air cleaner. Post #357. Every thing begins to change the running characteristics when the engine comes to running temp.
Are the crank gasses effecting air/fuel to such a degree?
Before the hot rod engine was installed. #1 engine was pumping oil from the crank case vent. first to the ground and later to last years catch can. That minimized dumped oil. I have seen enough examples of crankcase vents directed to the intake to give it a go. I have also seen enough Kart engines at the stock angle with just a tiny sort of air cleaner to vent an engine.
From Pat yesterday "I only run 12 ounces of oil in the 79cc and never had a problem."
Seems I have been over filling the engine alot, fearing the designed in splash finger would fail to lubricate the cylinder and top end adequately in a vertical configuration.
What did I know? There ain't a operating manual.
I made changes to the intake system before evaluating the Hot Rod mods of it's self. Fix is on the way. After I mow the grass to please SWMBO. Going back to stock SF config.
You don't have to ask why I drink. but I will tell you.
It kills the pain and allows a pause for thought. Syntax suffers sometimes. But I always post edit.
Tom
I Let the engine cool down and pulled the spark plug which was dry and clean.
Test #2 Clip in middle slot. Starts and idles well. Ran reasonably until the engine came up to running temp and started to lose throttle response. but undeterred I headed for the 10/% grade. The street named Hilltop. It got me there. 100 yds up and power is fading fast, I start pedaling
and gain another 50 and then the exhaust goes pop! And silence.Pedaling furiously I make the first wide driveway entrance and turn for home some 600yds away.
All coasting down hill to my shop. 10% pitch will get you going pretty darn fast. Saved some speed rounding the turn to make my drive and and then gravitate to the shop entrance.
Interesting ride, the return bit. Very quiet like Rick ghosting along with electric power. Wished I took advantage if the coast home to site see more than I did.
Engine was still at 148F rolling into the shop with my infrared thermometer. I'll pull the spark plug a see what we will see.
But I have had an epiphany of sorts. One thing I did before I gave the bike any run was route the catch can vent to the air cleaner. Post #357. Every thing begins to change the running characteristics when the engine comes to running temp.
Are the crank gasses effecting air/fuel to such a degree?
Before the hot rod engine was installed. #1 engine was pumping oil from the crank case vent. first to the ground and later to last years catch can. That minimized dumped oil. I have seen enough examples of crankcase vents directed to the intake to give it a go. I have also seen enough Kart engines at the stock angle with just a tiny sort of air cleaner to vent an engine.
From Pat yesterday "I only run 12 ounces of oil in the 79cc and never had a problem."
Seems I have been over filling the engine alot, fearing the designed in splash finger would fail to lubricate the cylinder and top end adequately in a vertical configuration.
What did I know? There ain't a operating manual.
I made changes to the intake system before evaluating the Hot Rod mods of it's self. Fix is on the way. After I mow the grass to please SWMBO. Going back to stock SF config.
You don't have to ask why I drink. but I will tell you.
It kills the pain and allows a pause for thought. Syntax suffers sometimes. But I always post edit.
Tom
