horsepower
WaterRider/Landsurfer
Ok I need some true mechanical sleuths here :
The bike:
2010 KTM 690 Duke
10,000 miles
The mods:
Leo Vince exhaust
PC5
The history:
Purchased here on BARF from an unknown seller
The problem :
Bike dies at or falls below idle and stalls. Restarts almost every time
Problem is intermittent. At higher speeds seems to be ok
The tries for a solution :
Took to my mechanic and he tried to remap but there are limited maps for this year. He suggested a Dyno tune. KTM advised same. 2 mechanics have now tested the bike and suggest Dyno.
Dyno tuner just called me. He halted the Dyno believing that the problem cannot be fixed by Dyno.
He said this:
On Dyno at each consistent RPM as trial, “ the bike would run lean one minute then rich the next. “
He checked the PC5 mapping and it was adjusted as well as possible. He also said the bike runs rougher and clicks much louder than normal for a KTM.
He suggested:
1) Check valve clearance
2) check piston for wear/ damage
3)Do a leak down test on piston ring to check if valves are sealing.
4) Check for a vacuum leak on the intake of the throttle body.
5)maybe the whole fuel injection system needs replacing or even just a simple fuel filter.
After relaying this back to my mechanic , he rejected most of those suggestions above due to the fact that most would show consistencies at all speeds wherein this is intermittent and only at coming to idle as in a full stop or a u turn. He suggested these :
1) check valve clearances to eliminate a tight sticky valve issue
2) potential sensor issue: but what do we do , replace an oxygen sensor , ride it , hope it works and or continue down the rabbit hole ? Or
3) Locate a stock pipe and get rid of PC 5: (but would this normal solve even work knowing now that it’s NOT a Dyno tune issue or a remap issue? Explain as to a child ).
Help me figure this out! , please advise as to your thoughts or theories here. My goal is to pinpoint and fix the issue and then sell it or trade for an inline 4 bike I know better. But I have to fix this issue first as it’s not my style to sell anything without knowing everything I can about it for the next guy /gal. It’s been 3 months and I have put exactly 8 miles on the bike. It is frustrating with this issue. PS, Not stopping is not an option. :ride
The bike:
2010 KTM 690 Duke
10,000 miles
The mods:
Leo Vince exhaust
PC5
The history:
Purchased here on BARF from an unknown seller
The problem :
Bike dies at or falls below idle and stalls. Restarts almost every time
Problem is intermittent. At higher speeds seems to be ok
The tries for a solution :
Took to my mechanic and he tried to remap but there are limited maps for this year. He suggested a Dyno tune. KTM advised same. 2 mechanics have now tested the bike and suggest Dyno.
Dyno tuner just called me. He halted the Dyno believing that the problem cannot be fixed by Dyno.
He said this:
On Dyno at each consistent RPM as trial, “ the bike would run lean one minute then rich the next. “
He checked the PC5 mapping and it was adjusted as well as possible. He also said the bike runs rougher and clicks much louder than normal for a KTM.
He suggested:
1) Check valve clearance
2) check piston for wear/ damage
3)Do a leak down test on piston ring to check if valves are sealing.
4) Check for a vacuum leak on the intake of the throttle body.
5)maybe the whole fuel injection system needs replacing or even just a simple fuel filter.
After relaying this back to my mechanic , he rejected most of those suggestions above due to the fact that most would show consistencies at all speeds wherein this is intermittent and only at coming to idle as in a full stop or a u turn. He suggested these :
1) check valve clearances to eliminate a tight sticky valve issue
2) potential sensor issue: but what do we do , replace an oxygen sensor , ride it , hope it works and or continue down the rabbit hole ? Or
3) Locate a stock pipe and get rid of PC 5: (but would this normal solve even work knowing now that it’s NOT a Dyno tune issue or a remap issue? Explain as to a child ).
Help me figure this out! , please advise as to your thoughts or theories here. My goal is to pinpoint and fix the issue and then sell it or trade for an inline 4 bike I know better. But I have to fix this issue first as it’s not my style to sell anything without knowing everything I can about it for the next guy /gal. It’s been 3 months and I have put exactly 8 miles on the bike. It is frustrating with this issue. PS, Not stopping is not an option. :ride
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