I got a 2003 300ex that won’t start. Starter spins but engine will not turn over. Assumed it was the key way or starter clutch. Pulled the flywheel off key way is grabbing the flywheel and starter clutch works as it should. The crankshaft turns either direction with ease by hand. Someone help me out here. Broken rod? Broken or stretched Timing chain? Stripped crank gear?

2001 honda trx250 mx recon

What were the changes besides plastics in old 400s vs new?

What were the changes besides plastics in old 400s vs new?

I had to take the top off my 86 honda 350d because there was a oil leak. Got it all back togther and I just found this part on the floor. Anyone know what it is? If it is even to the 350?

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I had to take the top off my 86 honda 350d because there was a oil leak. Got it all back togther and I just found this part on the floor. Anyone know what it is? If it is even to the 350?

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New to forum and love the feedback so far!!! My question.. bought this quad and ran fine for a month.. developed a bad tick so I opened up the rocker box and noticed the rockers were cashed… so having it opened already installed new rockers new stage 1 cam and new cam chain and sprocket!! Ran like a raped ape for a month! !! Now the ticking came back, opened it up again and rockers are cashed again!!!! The arm looks discolored from high temps.. but I’m actually running a little rich.. checked oil filter and that is installed right and seems to be plenty of oil in the top end!! Wth can possibly cause this!! Please help!!

I’m a total newb to sport quads, having just procured a 400ex and 450R (long story). Anyway, I’m reading through the manuals and then checking online about oil changes and I see a huge discrepancy.

My 450R manual say to replace the oil and tranny fluid (it’s an ’05) – "Every 100 hours or 600 miles".

The rest of the internet seems to say things like "I replace mine after every ride", or "after 10 hours", or "after every couple of rides".

Is Honda way off, and it’s really too long to go the recommended "100 hours"? Oil is cheap, and dead easy to change. So I’m not worried about that. Just wondering why the huge discrepancy. ??

I already posted this question on a different thread but then I saw this thread and seems like it will put me in a better place being I have a trx450er.

2 problems

1. I just shimmed my valves a month and a half ago and i just had to do them again last night. The clearances were way off and after every ride i clean my airfilter and reoil it. I dont understand why this happened so quick?

2. My intake valves are on their last shim, 1.20, so next time i need to replace valves and lap them, but my question is will i need any head work done aside of lapping the valves?

I already posted this question on a different thread but then I saw this thread and seems like it will put me in a better place being I have a trx450er.

2 problems

1. I just shimmed my valves a month and a half ago and i just had to do them again last night. The clearances were way off and after every ride i clean my airfilter and reoil it. I dont understand why this happened so quick?

2. My intake valves are on their last shim, 1.20, so next time i need to replace valves and lap them, but my question is will i need any head work done aside of lapping the valves?