r/MotorcycleMechanics

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Hey guys. I recently went down on my R3. A little low side, luckily I was uninjured because it was low speed and I was in full leathers. Unfortunately, my bike went off the road and into a concrete and rock drainage ditch where it flipped I assume from the damages (I couldn’t see my bike while sliding and only saw it after it settled).

Now to the actual question. I’m not 100% familiar with what’s critically important on the bike and wondering if the bent portion of metal can simply be bent back to straight or if it’s a write off. I’m thinking I’ll take it into a shop to assess it since if this damage happened what else could have happened that I can’t see but wanted to try my luck here first.

Any tips or heads up appreciated since this is the first time i’ve wrecked (and trying to repair) a bike.

My electric start isn’t working and I think this is an intake sensor that is not connected but it could also be a tip over sensor (likely not though because I’m pretty sure my tip over sensor is under gas tank and has label that says up)

This sensor was near the battery area of my bike and was likely disconnected by previous owner

I bought a project bike (1990 Suzuki DR350S) and I’m trying to get her running and eventually back on the road. I found a stripped cylinder head bolt, so I figured I would remove the cylinder head and do some thread repair - no biggie.

The head is FUCKING ON THERE. It looks to me like whoever was in here last siliconed the life out of it before reinstalling and now I cannot for the life of me get it off and I’m afraid I’ll break it.

What do you do in a situation like this?

So far I’ve tried:
- prying so hard at it that I can see the fins bending and I’m denting parts of the head (non sealing parts)…
- put the engine mount bolt back in and pulled on it with a strap with all I’ve got - twisted the strap to out tension and pried on it some more…
- swung my purse at it (not the sledge hammer one, just the plastic one, but still. I hit it good and hard is what I’m saying)…
- I may or may not have tried things too stupid to post on Reddit

Seriously though - I’m stumped. Would massive amounts of heat help? Is there something to help dissolve this silicone crud?

EDIT: Yes, I got all of the bolts out and I consulted the manual to make sure.

I can't find a bad connection, I replaced the spark plugs, trickle charged the battery (reading 12.3, 10 when cranking). No clog in the fuel line. What else could it be? :c

I did take off the tank but there's still fuel in the line, it was doing the same thing with it on.

Hey guys!

I have a 2006 Honda Goldwing I bought recently and the heel toe shifter is coming loose making shifting difficult. It seems to have this weird 2 pin screw where I believe it needs to be tightened but I'm not sure what tool I need to tighten it. If anyone has any idea, it would be a great help! Thanks!

New to motorcycle maintenance,Pulled my tank off and one of these hoses looks like they should be connected to the underside of tank.

What is it and should I reattach it?

ZONTES ZT125 G1 2022

So I replaced the chain and sprocket on my 2014 Yamaha yzf6 but forgot to grease the master link. I haven’t pushed down on the rivets yet I just punched the pits through. Can I take this out without damaging the o rings or should I just order a new master link

Can anyone help me diagnose why my bike runs like sh*t after like 5 mins of riding, it starts fine when cold, then dies and doesn't start again, when it does, it runs like this, then dies and doesn't run even when push started. (Ignore the red light, my water temp sensor doesn't work)

The battery is new, fuel pump was replaced, ignition coils were replaced for denso 129700-4840, carb and jets were cleaned and float needle valves replaced, k&n air filter was cleaned, fuel tank petcock isn't clogged (tried starting the bike with the fuel cap open too), Spark plugs were replaced too, battery reads around 14v at 3k RPM so im guessing my stator and regulator/rectifier still work, the impedances on the stator were within spec too, and it used to run fine up to some days ago besides having to replace my dead battery (cause it sat for a while).

So fuel delievery isn't a problem cause i still can hear the audible pump click when i prime the pump after the bike has died, also drained carbs and they were full.

Could this be an electrical issue coming from my Harness, IC Igniter, Crankshaft position sensor or are my carbs just flooding? I also forgot to adjust the Spark Plug gap before installing them.. but it had never caused this problem. Has anyone dealt with anything similar?.

My bike caught on fire on the left fairing once so, some cables are charred.. (ill attach pics in the comments), I just don't know what to replace or check for at this point, I recently bought the section of the Harness for the Ignition Coils but it hasn't arrived, any idea what i should check?, I might end up replacing the entire harness, but my bike is a US/CN model and idk if a CA Harness for the J model will fit it, has anyone done that swap? (they do have different P.N; 26030-1827 US / 26030-1828 CA).

First time working on a bike! Bought a 05cbr600rr track bike 4000 miles claimed have stripped it all down and mostly back together now fighting the back wheel as when it’s torqued with the rear calliper on wheels binds but will spin freely with it torqued down and the calliper removed. Have changed the spark plugs thinking it needs a new battery will fire up the first time but a few starts in will crank like this or not fire up with dash flicking off as it cranks, any thoughts on how the engine sounds? Planning to do a compression test when have the time and check the new spark plugs after they’ve been in now and run a few times any advice is welcome will add another post of it running when it’s up to temp with some revs