KLR250 not starting - faulty KACR
Just got a 2001 KLR250. It has a broken KACR, so I removed the swing bit to run some tests while I wait for a new camshaft to arrive.
Basically my problem is that I can’t get it to start. I did read not having a KACR makes it hard to start, but not impossible I guess. Things I tested so far: - Has good blue spark on crank. Both on spark tester and spark plug. - Timing is as per manual. No timing issues. - Carbs have been striped and cleaned. - Using brand new petrol - Compression test. On good crank from TDC gives 60psi. 3 good cranks in sequence gives around 100psi It seems I can’t get petrol inside the cylinder. After a few cranks when I remove the spark plug it is dry. It is dry if I have coil connected or not. I could get one good combustion when sprayed starter fluid directly into the intake manifold. I hooked up carb outlet to my vacuum cleaner to check suction. Main jet, pilot jet and choke are all squirting petrol as expected. Could notice some pop-back on the carbs. Not sure what that means if I do have good compression, correct timing and correct valve gaps. Is there anything else would you guys recommend trying? Or it is useless to try until I install the new camshaft? |
I'd check valve clearances before ordering anything.
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Originally Posted by MaverickAus
(Post 535924)
I'd check valve clearances before ordering anything.
I guess I have not much option in not ordering a new shaft, as the KACR is broken. I will get full retard tomorrow and hookup a drill to the fly wheel and see if it cranks fast enough increase vacuum on the carbs... |
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