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New Yamaha owner saying hello!

b1jackson

By b1jackson
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b1jackson Apprentice

b1jackson

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Well I am all about restoring and fixing up old neglected beaters. This will be my first ATV (usually do scooters). Bought an 87 Yamaha Moto4 225 with some transmission issues. Hope to learn from the forum here on how to dissect this little beast and get it performing in tip top shape. Also plan on doing a cosmetic overhaul to it along the way.

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  • 2 months later...
b1jackson Apprentice

b1jackson

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Hey folks. Been having forum issues of late and can't access any pages or I can just get one page into the site and it locks up.

Anyway, an update of sorts. I was able to start the bike on the weekend. Hadn't heard it running before I bought it. The noise that the PO said was an issue was noticeable as soon as I started up the bike. With in running (in neutral) I could hear a clattery sounding gear like noise. I shut the bike off right away so as not to cause any more possible damage.

I took apart the middle gear (no issues) and also the transmission on the left side of the motor. All was clean, not a metal filing or nothing. No noticeable gear chunks or bits.

I am now thinking that it must be in the clutch (maybe a spring in the primary) so I'll dig into that side of the engine later this weekend. Am I correct in stating that the secondary clutch wouldn't be spinning or engaged at idle?

Fun to see inside these beasts. Much different than my vintage scooters!

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  • 2 weeks later...
b1jackson Apprentice

b1jackson

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Hey folks. Been having forum issues of late and can't access any pages or I can just get one page into the site and it locks up.

Anyway, an update of sorts. I was able to start the bike on the weekend. Hadn't heard it running before I bought it. The noise that the PO said was an issue was noticeable as soon as I started up the bike. With in running (in neutral) I could hear a clattery sounding gear like noise. I shut the bike off right away so as not to cause any more possible damage.

I took apart the middle gear (no issues) and also the transmission on the left side of the motor. All was clean, not a metal filing or nothing. No noticeable gear chunks or bits.

I am now thinking that it must be in the clutch (maybe a spring in the primary) so I'll dig into that side of the engine later this weekend. Am I correct in stating that the secondary clutch wouldn't be spinning or engaged at idle?

Fun to see inside these beasts. Much different than my vintage scooters!

OK....another update. Torn apart all the clutch components. No dice there either. Now have the tranny apart, the clutch apart and the engine out on the floor. Looks like I have to go in deep:aargh:

From what I can tell on parts fiches, its the balancer drive gear. When I turn the drive axle, it catches here and there, skips, jamps, etc. So with the tranny all out, the clutch all out, only makes sense that it would be in the worst possible spot to get at. I guess this means splitting the case. Perhaps I'll move this thread.

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  • 8 months later...
b1jackson Apprentice

b1jackson

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Hello folks. Long overdue update. I didn't want to bother splitting the case so the bike sat torn apart in my shop all summer. Found somebody looking for a parts bike so I sold it.

Feeling like I never got to scratch that quad itch, I found a 1999 kodiak 400 and I'll be bringing it home in a few days. It's ready to ride. Just a few minor things need fixing in the future.

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