Hello! New here! 98 Blaster

[mostdope97]

Can I flush out the bottom end ?

 

[mostdope97]

Can I flush out the bottom end ?

 

[mostdope97]

Can I check any of that without splitting the case?? So far I just have top end off. I didn’t even take it out.

Hope someone’s still up lol my jet seems to be 100!?!? Lmao uhhh... also in the pics I don’t believe it’s my ring anymore what could that be ?

 

[mostdope97]

Can I check any of that without splitting the case?? So far I just have top end off. I didn’t even take it out.

Hope someone’s still up lol my jet seems to be 100!?!? Lmao uhhh... also in the pics I don’t believe it’s my ring anymore what could that be ?

 

[mostdope97]

Can I check any of that without splitting the case?? So far I just have top end off. I didn’t even take it out.

My jet seems to be 100?!?! Uhhh ... what should it be? Also I don’t think it's my rings Pieces don’t match

 

[Slydog]

Can I check any of that without splitting the case?? So far I just have top end off. I didn’t even take it out.

Check color of big end on rod for blueing or purple color. Roll crank around it should be smooth no rough spots in crank bearings. Plus look in with flashlight. Maybe fish around with small magnet. Kinda looks like some detonation going on. Are you premixing your gas? If so you need to plug off nipple on carb that oil injection went to i see a hose on it.or it will be an air leak.and give you the results you have. Basically You have to figure out what caused your failure so it doesn't happen to new top end.

 

[mostdope97]

Check color of big end on rod for blueing or purple color. Roll crank around it should be smooth no rough spots in crank bearings. Plus look in with flashlight. Maybe fish around with small magnet. Kinda looks like some detonation going on. Are you premixing your gas? If so you need to plug off nipple on carb that oil injection went to i see a hose on it.or it will be an air leak.and give you the results you have. Basically You have to figure out what caused your failure so it doesn't happen to new top end.

And that’s where I’m stuck lol

 

[blaster7]

Yes, you can flush the bottom end but I highly recommend you split the cases. Also, like sly said, find the source for the initial cause of failure. The places I would start is the carb. Look at the jets and make sure they are the correct size for your mods. You can cross reference what your quad needs in relation to what others are running in the jetting thread, also, check that the oil injection nipple has a cap on it if you have deleted the oil injection. Leak down test is an absolute must because without it your playing guessing games. Another cause for failure could vary well be Chinese internals, this was the cause for the blaster I picked up that was already blown.

Do these things we have told you and re post with your findings, and good luck with everything.

 

[mostdope97]

Yes, you can flush the bottom end but I highly recommend you split the cases. Also, like sly said, find the source for the initial cause of failure. The places I would start is the carb. Look at the jets and make sure they are the correct size for your mods. You can cross reference what your quad needs in relation to what others are running in the jetting thread, also, check that the oil injection nipple has a cap on it if you have deleted the oil injection. Leak down test is an absolute must because without it your playing guessing games. Another cause for failure could vary well be Chinese internals, this was the cause for the blaster I picked up that was already blown.

Do these things we have told you and re post with your findings, and good luck with everything.

Oil injection is deleted I will take a look at jet page. My jet looks to be at 100 so I know it definitely needs to go up. So with that being said about my jet and my hose on carb. What could of broken that looks like a ring ?

 

[mostdope97]

I’m also really confused about my carb. Mind taking a look?

 

[blaster7]

Absolutely, post some pics of what your talking about and I will be pleased to help. If your running a factory Mikuni VM carburetor then a 100 is blow your engine lean. The stock jetting on the carb goes 220 main jet and 32.5 pilot jet.

 

[mostdope97]

Absolutely, post some pics of what your talking about and I will be pleased to help. If your running a factory Mikuni VM carburetor then a 100 is blow your engine lean. The stock jetting on the carb goes 220 main jet and 32.5 pilot jet.

It’s the few couple of pics above this

 

[blaster7]

Got you, yeah I just scrolled right by it. Yep, that looks to be a complete garbage Chinese replica carb bud. Junk it and try to find a good used unit on fleebay. No wonder you had issues.

 

[blaster7]

Do you have a side pic of that carb?

 

[mostdope97]

Car

Do you have a side pic of that carb?

carb says minuki I’ll take a better pic soon

 

[blaster7]

Copy cats do say Mikuni on them, in fact I have seen about six up close in person. But they were very different from a genuine carburetor. I mean just look at that carb, it’s not even close to a real Mikuni vm 26 and that’s just from the float area pics.

 

[blaster7]

This is the best picture of a stock carb I could find real quick for you. As you can see, it’s not even close. Also, the idle screw gives it away as well.

 

[Slydog]

I’m also really confused about my carb. Mind taking a look?

I see your premixing and nipple on carb is not capped off. It has a hose on it. Which is an air leak. That carb is what fryed your top end most likely.get an oem carb if possible

 

[mostdope97]

I see your premixing and nipple on carb is not capped off. It has a hose on it. Which is an air leak. That carb is what fryed your top end most likely.get an oem carb if possible

Wow my carb looks way different. Thank you both for the help. I’ll keep you updated

 

[Slydog]

Wow my carb looks way different. Thank you both for the help. I’ll keep you updated

These knockoffs have killed many topends.