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» RB Concept Forums » RB Concept .28 engines » RB.28 pullstart plastic hex striped.

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Author Topic: RB.28 pullstart plastic hex striped.
markmaxx
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My new RB.28 pullstart has striped out.

It seems to me that the only thing that keeps the string spool strait on the one-way hex is the back of the pullstart.

Mine flexes and the spool cocks sideways and the metel hex strips out the plastic string spool.

I tryed to attach a picture.

My question is how do I fix this? do I only need a new string spool or do I need a new case? Thank you.


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Posts: 12 | From: Va. | Registered: Jul 2003  |  IP: Logged
GSR
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I was having the same trouble. I tried putting a nylon washer in between the rope holder and the backplate but it made to much drag on the recoil. I bought another pull rope and it held a little better it was not an rb concepts pullrope it was a picco pullstart. After that i had a problem with the spring coming off so i put a small bolt and nut with washers on the pull rope. If you take the metal hex out you will see where the spring fits in the little holder. thats where i put it and i haven't had any problems yet
Posts: 11 | From: UNITED STATES | Registered: May 2004  |  IP: Logged
mydixie
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I just reciently had to pull the pullstart apart and degrease the oneway brg. Everything looked fine,,so far. I dont understand the plastic spool tho,,I know the obvious reason,,but was thinking maybe a metal insert around the hex in the plastic spool would save that wear as mine is showing signs of wear.

Im not an engineer,,just thinking out loud!

Posts: 99 | Registered: May 2004  |  IP: Logged
RB Products - Rody
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The spool needs to be made out of plastic this to avoid possible damage to the engine when you pull too hard or pull too far the rope.

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Posts: 5412 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
markmaxx
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What about my problem with the spool cocking sideway's and slipping? The plastic spool seems strong enough ,but it is striped from the middle to the side that faces the motor.

If I push on the side of the pullstart with my thumb ( pushing the metel hex back in the center of the plastic spool ) every thing works great.

My Question is do I need to replace just the plastic spool? and or the pullstart cover?

And is there a replacement part on the market yet?

And wow! is this a Monster motor thank you to RB.

Posts: 12 | From: Va. | Registered: Jul 2003  |  IP: Logged
RB Products - Rody
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The best thing to do in this case is to replace the starter unit, part#01700-151.

[ 09. June 2004, 20:22: Message edited by: RB Products - USA ]

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Posts: 5412 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
markmaxx
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Thank You Rody! Again great motor, the top of my Unlimited Engineering Supermaxx is all scratched up from the wild wheelies! My other motor is a RB. S7 great motor too!
Posts: 12 | From: Va. | Registered: Jul 2003  |  IP: Logged
binaryterror
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I too experienced this problem. Plan to try 1 more pullstart, then off to buy a starter box (XTM Mammoth can use a starter box easy).

Rody: How would I remove all the pullstart bits and put on a different backplate like the one for the WS7II?

Posts: 31 | Registered: Apr 2004  |  IP: Logged
RB Products - Rody
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We are developing a next version of the .28 engine where it is possible to use the engine without a pullstarter.

So for this moment we do not have an alternative to replace the pullstarter but for the future we do.

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Posts: 5412 | From: Allevard, FRANCE | Registered: Jul 2002  |  IP: Logged
GSR
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Try breaking the glow plug 1/2 turn open when starting the 28. It has much compression and this will take alot of the force off the pull rope making it very easy to start. I had to learn the hard way. You might want to but a new pull start. But this works very well for me after you start it take the ignighter off and tighten the glow plug. ready to run problem solved.
Posts: 11 | From: UNITED STATES | Registered: May 2004  |  IP: Logged
   

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