20 Most Recent 2007 KTM 50 Senior Adventure Questions & Answers

Over filled and excess oil being burnt in the cylinder. Drain some oil and refill to the correct level.

You likely need a smaller pilot jet in the carb.

Try screwing the air screw in and out - if screwing it out seems to help then you need to change your pilot (low speed) jet. I don't have any recommendations for you as far as size, but just get one the next smaller size from what's in there now. When perfectly sized, your air screw will like to be set around 1.5-2.0 turns from seat.

This could also be a sign that you need a new ring. The rings don't last long in these bikes - you need to re-reing quite frequently. it's a very common thing. Lower compression from a worn ring will make the motor act as if it's too rich due to incomplete combustion and lower combustion temps. A worn ring will show up at lower engine speeds first- much like you describe.

Scott

A new clutch should not affect timing, the timing triggers of the flywheel

Thank you for contacting FixYa with your inquiry.
Capacity - Gear Oil Gear oil 0.20 Liter (0.21 qt.) Gear oil (ATF Dexron 3)
Guideline - Use only high quality 2-stroke engine oil of a well-known brand. KTM recommends Mororex products. Fully shythetic
Supplier: Motorex - Cross Power 2T
More user info on this web site: http://www.ktm.com/uploads/tx_ktmproduct/techdocs/6101L0_34254324.pdf
Let us know if you need more info.
Kind regards,
TF

That would be like riding a fixed wheel bike.Think about how you will stop and start. Only hydraulic fluid will leak. Bad idea!

Question edited for clarity. That sounds like it is just a bad connection somewhere or possibly a bad switch. Remove the battery leads and clean the lead contacts and battery posts with a wire brush. Smear with Vaseline and reconnect. Remove the starter leads and do the same. Then it could be the Starter Relay https://www.google.com/search?q=ktm+450+sx-f+starter+relay+location Or Starter Button https://www.google.com/search?q=ktm+450+sx-f+starter+button+replacement ..

personnaly I would replace cylinder with new OEM

All dirt bikes have a VIN. It is on the steering neck. https://www.google.com/search?q=vin+on+my+ktm+300 ..

Have you checked battery connections. Run switch in the correct position? Checked spark plug for debris? Just thinking out loud..

Drain oil. Use degreaser to clean area. Use JB Weld & allow to set up properly before adding oil.

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Hi, try to see this link and looking for the manual that you need. https://www.pdfmotomanual.com/manuales/ktm/eng I hope to give you an help. Luca

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Hi, most likely your cdi unit or ignition coil needs replacing.

took me a min or two of WTF-ing to see pic and realize you meant a 2-stroke motorcycle..

try replace spark plugs

It's a bad seal of the head gasket. You need a new head gasket and to scrape every particle of debris from the cylinder head and cylinder surfaces that mate with the head gasket. Use the factory specified gasket sealing compound and do a clean job - no blobs or pools of the stuff. The head gasket should lay flat on the surface of the top of the cylinder, and you have to make this surface free of grit, leftover sealant and any other foreign matter before you put the head in place and torque it down. Start with the head bolts just finger tight and then go by the manufacturer's specs for the pattern and amount of torque to be applied. Usually it is recommended that you get to the specified torque amount in stages, going around several times and repeating the torque pattern until you get that maximum rated amount. This will prevent the seal from shifting or warping and should make the gasket seal perfectly. This is the old school method of doing this job. and I have never seen this fail to produce good results. Take your time, be clean, and you will have the results you want.

Check the clutch, adjust, clean, or replace

over full sump fuel getting into sump badly worn rings allowing excessive blow by

Worn out shift dogs.

Make sure cables are working . Follow it down to clutch and make sure clutch lever is actually moving. It is does then pull clutch in and pushbike backwards. Should release If not , plates are probably frozen through excessive heat. Replace them. If lever does not move when clutch handle pulled, then adjust or broken cable. hope that' it, easier and cheaper!